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List of counties in Michigan facts for kids

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Quick facts for kids
Counties of Michigan
Location State of Michigan
Number 83
Populations 2,156 (Keweenaw) – 1,820,584 (Wayne)
Areas 508 square miles (1,320 km2) (Cass) – 5,966 square miles (15,450 km2) (Keweenaw)
Government County government
Subdivisions cities, towns, townships, villages, unincorporated communities, census designated place

There are 83 counties in the U.S. state of Michigan. The boundaries of these counties have not changed substantially since 1897. However, throughout the 19th century, the state legislature frequently adjusted county boundaries. County creation was intended to fulfill the goal of establishing government over unorganized territory, but a more important goal was encouraging settlement by surveying the land and dividing it into salable sections.

The creation of counties generally occurred in two stages. First the boundaries of a county were declared and given a name. The county appeared on maps, even though this may have been the entire extent of a county's tangible existence for several years. During this period, the as-yet–unorganized county was attached to another already organized county for administrative purposes. The legislature frequently changed the administrative attachment of these unorganized counties. Residents of such an attached county could petition the legislature for organization, which was the granting of full legal recognition to the county.

There are many cities and villages that span county boundaries in Michigan, including its capital, Lansing. For a few years during the early 1970s, split cities briefly had authority to petition to change the county boundaries to accord with the city boundaries. The only city to take advantage of this brief opportunity was New Baltimore (previously split between Macomb County and St. Clair County; now completely in Macomb). This transfer of territory from St. Clair to Macomb was the only county boundary change in Michigan since the early 20th century.

The state constitution of 1850 permitted an incorporated city with a population of at least 20,000 to be organized into a separate county of its own. The Constitution of 1908 retained this provision, but raised the population threshold to 100,000. No city was ever organized into an independent county in this fashion and when a new Constitution took effect in 1963, the provision was removed.

Michigan's boundary with Illinois is formed by Lake Michigan, and three counties have water boundaries with Illinois: Berrien County, Van Buren County, and Allegan County. Michigan also has a boundary with Minnesota, which is formed by Lake Superior. The water boundary in this instance is formed by two counties: Ontonagon County and Keweenaw County.

Etymologies

Nine counties have names invented by the ethnologist Henry Schoolcraft, usually adapted from parts of Native American words, but sometimes having parts from Greek, Arabic and Latin roots. Schoolcraft's made-up words have disputed sources. While he was a devotee of Native American words and culture, some of his words may have originated with tribes from other areas of the country, such as New York or the Northeast, where many settlers to Michigan came from. Real Native words were eradicated, and he substituted made-up words, sometimes with a kernel of Indian language or sound in them.

A second group of four counties were renamed for Irish locales (counties Antrim, Clare, Roscommon and Wexford), apparently because it was close to the heart for certain Michigan legislators or their constituents.

Ten counties, the so-called "cabinet counties", were named for persons who served in Andrew Jackson's presidential administration, which was tied to Michigan's anticipated ascendancy to statehood. Eight were named in 1829. Livingston County was named in 1833. Cass County was also named in 1829, but Governor Lewis Cass did not become a member of Jackson's Cabinet until 1831.

List of counties

County
FIPS Code County seat
Created
Origin
Etymology
Population
Area
Map
 
Alcona County 001 Harrisville 1840 (boundaries declared)
1869 (organized)
From unorganized territory; named Negwegon County until 1843 Schoolcraft pseudo-Native American name &&&&&&&&&&010942.&&&&&010,942 &&&&&&&&&&&01791.&&&&&01,791 sq mi
(&&&&&&&&&&&04639.&&&&&04,639 km2)
State map highlighting Alcona County
Alger County 003 Munising 1885 From part of Schoolcraft County Russell A. Alger, (1836-1907):
Governor and national politician
&&&&&&&&&&&09601.&&&&&09,601 &&&&&&&&&&&05049.&&&&&05,049 sq mi
(&&&&&&&&&&013077.&&&&&013,077 km2)
State map highlighting Alger County
Allegan County 005 Allegan 1831 (boundaries declared)
1835 (organized)
From part of Barry County, and unorganized territory Pseudo-Schoolcraft pseudo-Native American name &&&&&&&&&0111408.&&&&&0111,408 &&&&&&&&&&&01833.&&&&&01,833 sq mi
(&&&&&&&&&&&04747.&&&&&04,747 km2)
State map highlighting Allegan County
Alpena County 007 Alpena 1840 (boundaries declared)
1857 (organized)
From part of Mackinac County, and unorganized territory Was named Anamickee County until 1843. Schoolcraft pseudo-Native American name &&&&&&&&&&029598.&&&&&029,598 &&&&&&&&&&&01695.&&&&&01,695 sq mi
(&&&&&&&&&&&04390.&&&&&04,390 km2)
State map highlighting Alpena County
Antrim County 009 Bellaire 1840 From part of Mackinac County; named Meegisee County until 1843 County Antrim, Ireland &&&&&&&&&&023598.&&&&&023,598 &&&&&&&&&&&&0602.&&&&&0602 sq mi
(&&&&&&&&&&&01559.&&&&&01,559 km2)
State map highlighting Antrim County
Arenac County 011 Standish 1831 From unorganized territory; annexed to Bay County in 1857, but reinstated in 1883 Schoolcraft pseudo-Native American name &&&&&&&&&&015899.&&&&&015,899 &&&&&&&&&&&&0681.&&&&&0681 sq mi
(&&&&&&&&&&&01764.&&&&&01,764 km2)
State map highlighting Arenac County
Baraga County 013 L'Anse 1875 From part of Houghton County Frederic Baraga (1797-1868): Catholic missionary and first bishop of Sault Ste. Marie &&&&&&&&&&&08860.&&&&&08,860 &&&&&&&&&&&01069.&&&&&01,069 sq mi
(&&&&&&&&&&&02769.&&&&&02,769 km2)
State map highlighting Baraga County
Barry County 015 Hastings 1829 From unorganized territory William T. Barry (1784-1835): Postmaster General in the Jackson Administration &&&&&&&&&&059173.&&&&&059,173 &&&&&&&&&&&&0577.&&&&&0577 sq mi
(&&&&&&&&&&&01494.&&&&&01,494 km2)
State map highlighting Barry County
Bay County 017 Bay City 1857 From parts of Arenac, Midland, and Saginaw Counties Saginaw Bay &&&&&&&&&0107771.&&&&&0107,771 &&&&&&&&&&&&0631.&&&&&0631 sq mi
(&&&&&&&&&&&01634.&&&&&01,634 km2)
State map highlighting Bay County
Benzie County 019 Beulah 1863 From part of Leelenau County French name of Betsie River: (rivière aux) Bec-scies, the "(river of) sawbill ducks" &&&&&&&&&&017525.&&&&&017,525 &&&&&&&&&&&&0860.&&&&&0860 sq mi
(&&&&&&&&&&&02227.&&&&&02,227 km2)
State map highlighting Benzie County
Berrien County 021 St. Joseph 1829 From unorganized territory John M. Berrien (1781-1856): Attorney General in the Jackson Administration &&&&&&&&&0156813.&&&&&0156,813 &&&&&&&&&&&01581.&&&&&01,581 sq mi
(&&&&&&&&&&&04095.&&&&&04,095 km2)
State map highlighting Berrien County
Branch County 023 Coldwater 1829 From unorganized territory John Branch (1782-1863): Secretary of the Navy in the Jackson Administration &&&&&&&&&&045248.&&&&&045,248 &&&&&&&&&&&&0519.&&&&&0519 sq mi
(&&&&&&&&&&&01344.&&&&&01,344 km2)
State map highlighting Branch County
Calhoun County 025 Marshall 1829 From unorganized territory John C. Calhoun (1782-1850): Vice President of the United States in the Jackson Administration &&&&&&&&&0136146.&&&&&0136,146 &&&&&&&&&&&&0718.&&&&&0718 sq mi
(&&&&&&&&&&&01860.&&&&&01,860 km2)
State map highlighting Calhoun County
Cass County 027 Cassopolis 1829 From unorganized territory Lewis Cass (1782-1866): Secretary of War in the Jackson Administration &&&&&&&&&&052293.&&&&&052,293 &&&&&&&&&&&&0508.&&&&&0508 sq mi
(&&&&&&&&&&&01316.&&&&&01,316 km2)
State map highlighting Cass County
Charlevoix County 029 Charlevoix 1869 From parts of Antrim, Emmet, and Otsego Counties Pierre François Xavier de Charlevoix (1682-1761): Jesuit traveller and historian of New France &&&&&&&&&&025949.&&&&&025,949 &&&&&&&&&&&01391.&&&&&01,391 sq mi
(&&&&&&&&&&&03603.&&&&&03,603 km2)
State map highlighting Charlevoix County
Cheboygan County 031 Cheboygan 1840 From part of Mackinac County Cheboygan River &&&&&&&&&&026152.&&&&&026,152 &&&&&&&&&&&&0885.&&&&&0885 sq mi
(&&&&&&&&&&&02292.&&&&&02,292 km2)
State map highlighting Cheboygan County
Chippewa County 033 Sault Ste. Marie 1827 From part of Mackinac County Ojibwa Native American tribe, also known as the Chippewa &&&&&&&&&&038520.&&&&&038,520 &&&&&&&&&&&02698.&&&&&02,698 sq mi
(&&&&&&&&&&&06988.&&&&&06,988 km2)
State map highlighting Chippewa County
Clare County 035 Harrison 1840 From part of Mackinac County, and unorganized territory; named Kaykakee County until 1843 County Clare, Ireland &&&&&&&&&&030926.&&&&&030,926 &&&&&&&&&&&&0575.&&&&&0575 sq mi
(&&&&&&&&&&&01489.&&&&&01,489 km2)
State map highlighting Clare County
Clinton County 037 St. Johns 1831 From unorganized territory DeWitt Clinton (1769-1828): Governor of New York. &&&&&&&&&&075382.&&&&&075,382 &&&&&&&&&&&&0575.&&&&&0575 sq mi
(&&&&&&&&&&&01489.&&&&&01,489 km2)
State map highlighting Clinton County
Crawford County 039 Grayling 1840 From part of Mackinac County and unorganized territory. Was named Shawano County until 1843. William Crawford, (1732-82), American Revolutionary War colonel western surveyor &&&&&&&&&&014074.&&&&&014,074 &&&&&&&&&&&&0563.&&&&&0563 sq mi
(&&&&&&&&&&&01458.&&&&&01,458 km2)
State map highlighting Crawford County
Delta County 041 Escanaba 1843 From part of Mackinac County and unorganized territory. Greek letter delta, referring to the triangular shape of the original county, which included segments of Menominee, Dickinson, Iron and Marquette counties &&&&&&&&&&037069.&&&&&037,069 &&&&&&&&&&&01992.&&&&&01,992 sq mi
(&&&&&&&&&&&05159.&&&&&05,159 km2)
State map highlighting Delta County
Dickinson County 043 Iron Mountain 1891 From parts of Iron County, Marquette County and Menominee County. Donald M. Dickinson (1846-1917): Postmaster General in the Cleveland Administration &&&&&&&&&&026168.&&&&&026,168 &&&&&&&&&&&&0777.&&&&&0777 sq mi
(&&&&&&&&&&&02012.&&&&&02,012 km2)
State map highlighting Dickinson County
Eaton County 045 Charlotte 1829 From unorganized territory. John Eaton (1790-1856): Secretary of War in the Jackson Administration &&&&&&&&&0107759.&&&&&0107,759 &&&&&&&&&&&&0579.&&&&&0579 sq mi
(&&&&&&&&&&&01500.&&&&&01,500 km2)
State map highlighting Eaton County
Emmet County 047 Petoskey 1840 From part of Mackinac County. Was named Tonegadana County until 1843. Robert Emmet (1778-1803): Irish nationalist and rebel leader &&&&&&&&&&032694.&&&&&032,694 &&&&&&&&&&&&0882.&&&&&0882 sq mi
(&&&&&&&&&&&02284.&&&&&02,284 km2)
State map highlighting Emmet County
Genesee County 049 Flint 1835 From parts of Lapeer County, Saginaw County and Shiawassee County. Seneca word, "je-nis-hi-yeh," meaning "beautiful valley": named after western New York valley from which many settlers came &&&&&&&&&0425790.&&&&&0425,790 &&&&&&&&&&&&0649.&&&&&0649 sq mi
(&&&&&&&&&&&01681.&&&&&01,681 km2)
State map highlighting Genesee County
Gladwin County 051 Gladwin 1831 From unorganized territory. Major Henry Gladwin, British commander of the fort at Detroit during the siege by Chief Pontiac in 1763-64. &&&&&&&&&&025692.&&&&&025,692 &&&&&&&&&&&&0516.&&&&&0516 sq mi
(&&&&&&&&&&&01336.&&&&&01,336 km2)
State map highlighting Gladwin County
Gogebic County 053 Bessemer 1887 From part of Ontonagon County. Probably from the Chippewa "bic" which most references interpret as "rock." &&&&&&&&&&016427.&&&&&016,427 &&&&&&&&&&&01476.&&&&&01,476 sq mi
(&&&&&&&&&&&03823.&&&&&03,823 km2)
State map highlighting Gogebic County
Grand Traverse County 055 Traverse City 1851 From part of Omeena County. French grande traverse ("long crossing"), given first to Grand Traverse Bay by French voyageurs. &&&&&&&&&&086986.&&&&&086,986 &&&&&&&&&&&&0601.&&&&&0601 sq mi
(&&&&&&&&&&&01557.&&&&&01,557 km2)
State map highlighting Grand Traverse County
Gratiot County 057 Ithaca 1831 From unorganized territory. Captain Charles Gratiot (1788-1855), built Fort Gratiot at the present site of Port Huron &&&&&&&&&&042476.&&&&&042,476 &&&&&&&&&&&&0572.&&&&&0572 sq mi
(&&&&&&&&&&&01481.&&&&&01,481 km2)
State map highlighting Gratiot County
Hillsdale County 059 Hillsdale 1829 From unorganized territory. From its terrain, made up of hills and dales. &&&&&&&&&&046688.&&&&&046,688 &&&&&&&&&&&&0607.&&&&&0607 sq mi
(&&&&&&&&&&&01572.&&&&&01,572 km2)
State map highlighting Hillsdale County
Houghton County 061 Houghton 1845 From parts of Marquette County and Ontonagon County. Dr. Douglass Houghton (1809-1845), first state geologist of Michigan, physician and surgeon, mayor of Detroit (1842-1843) &&&&&&&&&&036628.&&&&&036,628 &&&&&&&&&&&01502.&&&&&01,502 sq mi
(&&&&&&&&&&&03890.&&&&&03,890 km2)
State map highlighting Houghton County
Huron County 063 Bad Axe 1840 From part of Sanilac County. Lake Huron, which the French named lac des Hurons after the Hurons. &&&&&&&&&&033118.&&&&&033,118 &&&&&&&&&&&02136.&&&&&02,136 sq mi
(&&&&&&&&&&&05532.&&&&&05,532 km2)
State map highlighting Huron County
Ingham County 065 Mason 1829 (boundaries declared)
1838 (organized)
From parts of Shiawassee County, Washtenaw County and unorganized territory. Samuel D. Ingham (1779-1860), U.S. Secretary of the Treasury in the Jackson Administration &&&&&&&&&0280895.&&&&&0280,895 &&&&&&&&&&&&0561.&&&&&0561 sq mi
(&&&&&&&&&&&01453.&&&&&01,453 km2)
State map highlighting Ingham County
Ionia County 067 Ionia 1831 From part of Mackinac County and unorganized territory. Province in ancient Greece &&&&&&&&&&063905.&&&&&063,905 &&&&&&&&&&&&0580.&&&&&0580 sq mi
(&&&&&&&&&&&01502.&&&&&01,502 km2)
State map highlighting Ionia County
Iosco County 069 Tawas City 1840 From unorganized territory. Was named Kanotin County until 1843. Schoolcraft pseudo-Native American name &&&&&&&&&&025887.&&&&&025,887 &&&&&&&&&&&01891.&&&&&01,891 sq mi
(&&&&&&&&&&&04898.&&&&&04,898 km2)
State map highlighting Iosco County
Iron County 071 Crystal Falls 1885 From parts of Marquette County and Menominee County. For the iron deposits and mines found in the county &&&&&&&&&&011817.&&&&&011,817 &&&&&&&&&&&01211.&&&&&01,211 sq mi
(&&&&&&&&&&&03136.&&&&&03,136 km2)
State map highlighting Iron County
Isabella County 073 Mt. Pleasant 1831 From part of Mackinac County and unorganized territory. Queen Isabella I (1451-1504) of Spain, under whose patronage Columbus undertook his voyages. &&&&&&&&&&070311.&&&&&070,311 &&&&&&&&&&&&0578.&&&&&0578 sq mi
(&&&&&&&&&&&01497.&&&&&01,497 km2)
State map highlighting Isabella County
Jackson County 075 Jackson 1829 (boundaries declared)
1832 (organised)
From part of Washtenaw County and unorganized territory. Andrew Jackson (1767-1845), 7th President of the United States and President when Michigan was admitted to the Union &&&&&&&&&0160248.&&&&&0160,248 &&&&&&&&&&&&0724.&&&&&0724 sq mi
(&&&&&&&&&&&01875.&&&&&01,875 km2)
State map highlighting Jackson County
Kalamazoo County 077 Kalamazoo 1829 From unorganized territory. Named for the Kalamazoo River. See Etymology of Kalamazoo for a discussion of the river's name. &&&&&&&&&0250331.&&&&&0250,331 &&&&&&&&&&&&0580.&&&&&0580 sq mi
(&&&&&&&&&&&01502.&&&&&01,502 km2)
State map highlighting Kalamazoo County
Kalkaska County 079 Kalkaska 1840 From part of Mackinac County. Was named Wabassee County until 1843. Schoolcraft pseudo-Native American name &&&&&&&&&&017153.&&&&&017,153 &&&&&&&&&&&&0571.&&&&&0571 sq mi
(&&&&&&&&&&&01479.&&&&&01,479 km2)
State map highlighting Kalkaska County
Kent County 081 Grand Rapids 1831 From part of Mackinac County and unorganized territory. New York jurist James Kent, who represented the Michigan Territory in its dispute with Ohio over the Toledo Strip. &&&&&&&&&0602622.&&&&&0602,622 &&&&&&&&&&&&0872.&&&&&0872 sq mi
(&&&&&&&&&&&02258.&&&&&02,258 km2)
State map highlighting Kent County
Keweenaw County 083 Eagle River 1861 From part of Houghton County. Ojibwe word gakiiwe-wewaning meaning "portage" &&&&&&&&&&&02156.&&&&&02,156 &&&&&&&&&&&05966.&&&&&05,966 sq mi
(&&&&&&&&&&015452.&&&&&015,452 km2)
State map highlighting Keweenaw County
Lake County 085 Baldwin 1840 From part of Mackinac County. Was named Aischum County until 1843. Has several small lakes and lies near Lake Michigan &&&&&&&&&&011539.&&&&&011,539 &&&&&&&&&&&&0575.&&&&&0575 sq mi
(&&&&&&&&&&&01489.&&&&&01,489 km2)
State map highlighting Lake County
Lapeer County 087 Lapeer 1822 From parts of Oakland County and St. Clair County. An Americanization of the French la pierre, meaning "the flint" &&&&&&&&&&088319.&&&&&088,319 &&&&&&&&&&&&0663.&&&&&0663 sq mi
(&&&&&&&&&&&01717.&&&&&01,717 km2)
State map highlighting Lapeer County
Leelanau County 089 Suttons Bay Township 1840 From part of Mackinac County. Schoolcraft pseudo-Native American name &&&&&&&&&&021708.&&&&&021,708 &&&&&&&&&&&02532.&&&&&02,532 sq mi
(&&&&&&&&&&&06558.&&&&&06,558 km2)
State map highlighting Leelanau County
Lenawee County 091 Adrian 1822 From part of Monroe County. A Schoolcraft pseudo-Native American name for man, from either the Delaware leno or lenno or the Shawnee lenawai &&&&&&&&&&099892.&&&&&099,892 &&&&&&&&&&&&0761.&&&&&0761 sq mi
(&&&&&&&&&&&01971.&&&&&01,971 km2)
State map highlighting Lenawee County
Livingston County 093 Howell 1833 (boundaries declared)
1836 (organized)
From parts of Shiawassee County and Washtenaw County. Edward Livingston (1764-1836): second Secretary of State in the Andrew Jackson administration &&&&&&&&&0180967.&&&&&0180,967 &&&&&&&&&&&&0585.&&&&&0585 sq mi
(&&&&&&&&&&&01515.&&&&&01,515 km2)
State map highlighting Livingston County
Luce County 095 Newberry 1887 From parts of Chippewa County and Mackinac County. Named for Michigan Governor Cyrus G. Luce &&&&&&&&&&&06631.&&&&&06,631 &&&&&&&&&&&01912.&&&&&01,912 sq mi
(&&&&&&&&&&&04952.&&&&&04,952 km2)
State map highlighting Luce County
Mackinac County 097 St. Ignace 1818 From part of Wayne County. Was named Michilimackinac County until 1837. Originally Michilimackinac, believed to be a French interpretation of the Native American name for Mackinac Island, meaning "big turtle" &&&&&&&&&&011113.&&&&&011,113 &&&&&&&&&&&02101.&&&&&02,101 sq mi
(&&&&&&&&&&&05442.&&&&&05,442 km2)
State map highlighting Mackinac County
Macomb County 099 Mt. Clemens 1818 From part of Wayne County. Named for U.S. General Alexander Macomb, a notable officer of the War of 1812 &&&&&&&&&0840978.&&&&&0840,978 &&&&&&&&&&&&0570.&&&&&0570 sq mi
(&&&&&&&&&&&01476.&&&&&01,476 km2)
State map highlighting Macomb County
Manistee County 101 Manistee 1840 From part of Mackinac County. Named for the Manistee River, which in turn is from the Ojibwe name, ministigweyaa meaning "(river) at whose mouth there are islands" &&&&&&&&&&024733.&&&&&024,733 &&&&&&&&&&&01281.&&&&&01,281 sq mi
(&&&&&&&&&&&03318.&&&&&03,318 km2)
State map highlighting Manistee County
Marquette County 103 Marquette 1843 From parts of Chippewa County and Mackinac County. Named for French Jesuit missionary Jacques Marquette &&&&&&&&&&067077.&&&&&067,077 &&&&&&&&&&&03425.&&&&&03,425 sq mi
(&&&&&&&&&&&08871.&&&&&08,871 km2)
State map highlighting Marquette County
Mason County 105 Ludington 1840 From part of Mackinac County. Was named Notipekago County until 1843. Named for Michigan Governor Stevens T. Mason &&&&&&&&&&028705.&&&&&028,705 &&&&&&&&&&&01242.&&&&&01,242 sq mi
(&&&&&&&&&&&03217.&&&&&03,217 km2)
State map highlighting Mason County
Mecosta County 107 Big Rapids 1840 From parts of Mackinac County and Oceana County. Named for Mecosta, a Native American leader &&&&&&&&&&042798.&&&&&042,798 &&&&&&&&&&&&0571.&&&&&0571 sq mi
(&&&&&&&&&&&01479.&&&&&01,479 km2)
State map highlighting Mecosta County
Menominee County 109 Menominee 1861 From part of Delta County. Was named Bleeker County until 1863. Named for the Menominee Native American people &&&&&&&&&&024029.&&&&&024,029 &&&&&&&&&&&01338.&&&&&01,338 sq mi
(&&&&&&&&&&&03465.&&&&&03,465 km2)
State map highlighting Menominee County
Midland County 111 Midland 1831 From part of Saginaw County and unorganized territory. Located near the geographical center of the Lower Peninsula &&&&&&&&&&083629.&&&&&083,629 &&&&&&&&&&&&0528.&&&&&0528 sq mi
(&&&&&&&&&&&01368.&&&&&01,368 km2)
State map highlighting Midland County
Missaukee County 113 Lake City 1840 From part of Mackinac County. Named for Missaukee, an Ottawa leader who signed land-grant treaties in 1831 and 1833 &&&&&&&&&&014849.&&&&&014,849 &&&&&&&&&&&&0574.&&&&&0574 sq mi
(&&&&&&&&&&&01487.&&&&&01,487 km2)
State map highlighting Missaukee County
Monroe County 115 Monroe 1817 From part of Wayne County. Named for James Monroe, the fifth U.S. President &&&&&&&&&0152021.&&&&&0152,021 &&&&&&&&&&&&0680.&&&&&0680 sq mi
(&&&&&&&&&&&01761.&&&&&01,761 km2)
State map highlighting Monroe County
Montcalm County 117 Stanton 1831 From part of Mackinac County and unorganized territory. Named for Louis-Joseph de Montcalm, a French military commander in Quebec &&&&&&&&&&063342.&&&&&063,342 &&&&&&&&&&&&0721.&&&&&0721 sq mi
(&&&&&&&&&&&01867.&&&&&01,867 km2)
State map highlighting Montcalm County
Montmorency County 119 Atlanta 1840 From part of Mackinac County and unorganized territory. Was named Cheonoquet County until 1843. House of Montmorency, influential in the history of French Canada &&&&&&&&&&&09765.&&&&&09,765 &&&&&&&&&&&&0562.&&&&&0562 sq mi
(&&&&&&&&&&&01456.&&&&&01,456 km2)
State map highlighting Montmorency County
Muskegon County 121 Muskegon 1859 From parts of Oceana County and Ottawa County. Muskegon River running through county, from the Ojibwa/Chippewa word mashkig meaning "swamp" or "marsh." &&&&&&&&&0172188.&&&&&0172,188 &&&&&&&&&&&01459.&&&&&01,459 sq mi
(&&&&&&&&&&&03779.&&&&&03,779 km2)
State map highlighting Muskegon County
Newaygo County 123 White Cloud 1840 From parts of Mackinac County and Oceana County. Named for a Chippewa leader who signed the Saginaw Treaty of 1819 &&&&&&&&&&048460.&&&&&048,460 &&&&&&&&&&&&0861.&&&&&0861 sq mi
(&&&&&&&&&&&02230.&&&&&02,230 km2)
State map highlighting Newaygo County
Oakland County 125 Pontiac 1819 (boundaries declared)
1820 (organized)
From part of Macomb County. The numerous "oak openings" in the area: "majestic orchard[s] of oaks and hickories varied by small prairies, grassy lawns and clear lakes" &&&&&&&&01202362.&&&&&01,202,362 &&&&&&&&&&&&0908.&&&&&0908 sq mi
(&&&&&&&&&&&02352.&&&&&02,352 km2)
State map highlighting Oakland County
Oceana County 127 Hart 1831 From part of Mackinac County. Borders Lake Michigan, the freshwater "ocean." &&&&&&&&&&026570.&&&&&026,570 &&&&&&&&&&&01307.&&&&&01,307 sq mi
(&&&&&&&&&&&03385.&&&&&03,385 km2)
State map highlighting Oceana County
Ogemaw County 129 West Branch 1840 From unorganized territory. Annexed to Iosco County in 1867 and reinstated in 1873. The Ojibwe word ogimaa, meaning "chief" or "leader" &&&&&&&&&&021699.&&&&&021,699 &&&&&&&&&&&&0575.&&&&&0575 sq mi
(&&&&&&&&&&&01489.&&&&&01,489 km2)
State map highlighting Ogemaw County
Ontonagon County 131 Ontonagon 1843 From parts of Chippewa County and Mackinac County. Named for the Ontonagon River. The Ojibwa word onagon means "dish" or "bowl." &&&&&&&&&&&06780.&&&&&06,780 &&&&&&&&&&&03741.&&&&&03,741 sq mi
(&&&&&&&&&&&09689.&&&&&09,689 km2)
State map highlighting Ontonagon County
Osceola County 133 Reed City 1840 From part of Mackinac County. Was named Unwattin County until 1843. Osceola (1804-1838), Seminole chief &&&&&&&&&&023528.&&&&&023,528 &&&&&&&&&&&&0573.&&&&&0573 sq mi
(&&&&&&&&&&&01484.&&&&&01,484 km2)
State map highlighting Osceola County
Oscoda County 135 Mio 1840 From part of Mackinac County and unorganized territory. Schoolcraft pseudo-Native American name &&&&&&&&&&&08640.&&&&&08,640 &&&&&&&&&&&&0572.&&&&&0572 sq mi
(&&&&&&&&&&&01481.&&&&&01,481 km2)
State map highlighting Oscoda County
Otsego County 137 Gaylord 1840 From part of Mackinac County. Was named Okkudo County until 1843. Named for Otsego County, New York &&&&&&&&&&024164.&&&&&024,164 &&&&&&&&&&&&0526.&&&&&0526 sq mi
(&&&&&&&&&&&01362.&&&&&01,362 km2)
State map highlighting Otsego County
Ottawa County 139 Grand Haven 1831 From part of Mackinac County and unorganized territory. Named for the Native American Ottawa people. &&&&&&&&&0263801.&&&&&0263,801 &&&&&&&&&&&01632.&&&&&01,632 sq mi
(&&&&&&&&&&&04227.&&&&&04,227 km2)
State map highlighting Ottawa County
Presque Isle County 141 Rogers City 1840 From part of Mackinac County. A derivation of the French phrase for "peninsula", literally "almost an island." &&&&&&&&&&013376.&&&&&013,376 &&&&&&&&&&&02573.&&&&&02,573 sq mi
(&&&&&&&&&&&06664.&&&&&06,664 km2)
State map highlighting Presque Isle County
Roscommon County 143 Roscommon 1840 From part of Mackinac County and unorganized territory. Was named Mikenauk County until 1843. County Roscommon, Ireland &&&&&&&&&&024449.&&&&&024,449 &&&&&&&&&&&&0580.&&&&&0580 sq mi
(&&&&&&&&&&&01502.&&&&&01,502 km2)
State map highlighting Roscommon County
Saginaw County 145 Saginaw 1822 From part of Oakland County. A Native American term, perhaps a reference to the Sauks, who lived at the mouth of the river &&&&&&&&&0200169.&&&&&0200,169 &&&&&&&&&&&&0816.&&&&&0816 sq mi
(&&&&&&&&&&&02113.&&&&&02,113 km2)
State map highlighting Saginaw County
St. Clair County 147 Port Huron 1820 From part of Macomb County. Named for either Arthur St. Clair, first governor of the Northwest Territory, or Saint Clair on whose feast day Lake St. Clair was discovered &&&&&&&&&0163040.&&&&&0163,040 &&&&&&&&&&&&0837.&&&&&0837 sq mi
(&&&&&&&&&&&02168.&&&&&02,168 km2)
State map highlighting St. Clair County
St. Joseph County 149 Centreville 1829 From unorganized territory. The St. Joseph River, which gains much of its volume within the county. &&&&&&&&&&061295.&&&&&061,295 &&&&&&&&&&&&0521.&&&&&0521 sq mi
(&&&&&&&&&&&01349.&&&&&01,349 km2)
State map highlighting St. Joseph County
Sanilac County 151 Sandusky 1822 From part of St. Clair County. Sanilac, a Wyandotte chief &&&&&&&&&&043114.&&&&&043,114 &&&&&&&&&&&01590.&&&&&01,590 sq mi
(&&&&&&&&&&&04118.&&&&&04,118 km2)
State map highlighting Sanilac County
Schoolcraft County 153 Manistique 1843 From parts of Chippewa County and Mackinac County. Henry Rowe Schoolcraft, (1793-1864):
American geographer and Superintendent of Indian Affairs in Michigan
&&&&&&&&&&&08485.&&&&&08,485 &&&&&&&&&&&01884.&&&&&01,884 sq mi
(&&&&&&&&&&&04880.&&&&&04,880 km2)
State map highlighting Schoolcraft County
Shiawassee County 155 Corunna 1822 From parts of Oakland County and St. Clair County. Named for the Shiawassee River, and means 'river that twists about. &&&&&&&&&&070648.&&&&&070,648 &&&&&&&&&&&&0541.&&&&&0541 sq mi
(&&&&&&&&&&&01401.&&&&&01,401 km2)
State map highlighting Shiawassee County
Tuscola County 157 Caro 1840 From part of Sanilac County. Pseudo-Native American name created by Henry Schoolcraft &&&&&&&&&&055729.&&&&&055,729 &&&&&&&&&&&&0914.&&&&&0914 sq mi
(&&&&&&&&&&&02367.&&&&&02,367 km2)
State map highlighting Tuscola County
Van Buren County 159 Paw Paw 1829 From unorganized territory. Martin Van Buren (1782-1862): Secretary of State in the Jackson Administration, later Vice President and eighth President of the United States &&&&&&&&&&076258.&&&&&076,258 &&&&&&&&&&&01090.&&&&&01,090 sq mi
(&&&&&&&&&&&02823.&&&&&02,823 km2)
State map highlighting Van Buren County
Washtenaw County 161 Ann Arbor 1822 (boundaries declared)
1826 (organised)
From parts of Oakland County and Wayne County From the Native American name for the Grand River, O-wash-ta-nong ("faraway water"), whose headwaters were within the county's bounds. &&&&&&&&&0344791.&&&&&0344,791 &&&&&&&&&&&&0723.&&&&&0723 sq mi
(&&&&&&&&&&&01873.&&&&&01,873 km2)
State map highlighting Washtenaw County
Wayne County 163 Detroit 1815 All lands within Michigan Territory that had been ceded by Native Americans through the 1807 Treaty of Detroit. "Mad" Anthony Wayne, (1745-1796):
United States Army general and statesman
&&&&&&&&01820584.&&&&&01,820,584 &&&&&&&&&&&&0672.&&&&&0672 sq mi
(&&&&&&&&&&&01740.&&&&&01,740 km2)
State map highlighting Wayne County
Wexford County 165 Cadillac 1840 From part of Mackinac County. Was named Kautawaubet County until 1843. County Wexford, Ireland &&&&&&&&&&032735.&&&&&032,735 &&&&&&&&&&&&0576.&&&&&0576 sq mi
(&&&&&&&&&&&01492.&&&&&01,492 km2)
State map highlighting Wexford County

Defunct counties

  1. Brown County formed in 1818 from unorganized territory when Michigan Territory was expanded to include area west of Lake Michigan upon formation of the state of Illinois. Transferred to Wisconsin Territory in 1836 and continues as Brown County, Wisconsin.
  2. Keskkauko County formed in 1840 from part of Mackinac County. Renamed Charlevoix County in 1843. Annexed to Emmet County in 1853. Reformed as Charlevoix County from Emmet County in 1869.
  3. Crawford County formed in 1818 from unorganized territory when Michigan Territory was expanded to include area west of Lake Michigan upon formation of the state of Illinois. Transferred to Wisconsin Territory in 1836 and continues as Crawford County, Wisconsin.
  4. Des Moines County formed in 1834 from unorganized territory. Transferred to Wisconsin Territory in 1836 and continues as Des Moines County, Iowa.
  5. Dubuque County formed in 1834 from unorganized territory. Transferred to Wisconsin Territory in 1836 and continues as Dubuque County, Iowa.
  6. Iowa County formed in 1830 from part of Crawford County. Transferred to Wisconsin Territory in 1836 and continues as Iowa County, Wisconsin.
  7. Isle Royale County formed in 1875 from part of Keweenaw County. Returned to it in 1897.
  8. Manitou County formed in 1855 from parts of Emmet County and Leelenau County. County government was disorganized in 1861 and attached for administrative purposes to Mackinac County. In 1865, it was attached to Leelanau and reattached to Mackinac in 1869. County was abolished in 1895 and absorbed by Charlevoix County and Leelanau County.
  9. Milwaukee County formed in 1834 from part of Brown County. Transferred to Wisconsin Territory in 1836 and continues as Milwaukee County, Wisconsin.
  10. Omeena County formed in 1840 from part of Mackinac County. Annexed to Grand Traverse County in 1853.
  11. Wyandot County formed in 1840 from part of Mackinac County. Annexed to Cheboygan County in 1853.

See also

Kids robot.svg In Spanish: Anexo:Condados de Míchigan para niños

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List of counties in Michigan Facts for Kids. Kiddle Encyclopedia.