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Linn County, Iowa facts for kids

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Linn County
Linn County Courthouse
Flag of Linn County
Flag
Official logo of Linn County
Logo
Map of Iowa highlighting Linn County
Location within the U.S. state of Iowa
Map of the United States highlighting Iowa
Iowa's location within the U.S.
Country  United States
State  Iowa
Founded 1839
Named for Lewis Linn
Seat Cedar Rapids
Largest city Cedar Rapids
Area
 • Total 725 sq mi (1,880 km2)
 • Land 717 sq mi (1,860 km2)
 • Water 7.6 sq mi (20 km2)  1.1%
Population
 (2020)
 • Total 230,299
 • Density 317.65/sq mi (122.65/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district 1st

Linn County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 230,299, making it the second-most populous county in Iowa. The county seat is Cedar Rapids. Linn County is named in honor of Senator Lewis F. Linn of Missouri. Linn County is included in the Cedar Rapids, IA Metropolitan Statistical Area.

History

Linn County was created as a named but unorganized area on December 21, 1837, as a part of Wisconsin Territory. It became part of Iowa Territory on July 4, 1838 when the territory was organized. Linn County was organized by the first legislative assembly of the Iowa Territory on January 15, 1839. A site was selected for its first county seat along Indian Creek, and was named Marion, after the Revolutionary War general Francis Marion. As early as 1855, there were debates over moving the county seat to the fast-growing Cedar Rapids, southwest of Marion, but it was not until November 6, 1919, that there were enough votes in favor of the move (9,960 to 4,823). The first rail line was built through Cedar Rapids in 1859, and made the town (and the county) a major commercial hub in eastern Iowa.

Many areas of the county were damaged by the flooding of Cedar River in June 2008.

Geography

According to the U.S. Census Bureau, the county has a total area of 725 square miles (1,880 km2), of which 717 square miles (1,860 km2) is land and 7.6 square miles (20 km2) (1.1%) is water.

Major highways

  • I-380 (IA).svg Interstate 380
  • Iowa 27.svg Iowa Highway 27
  • US 30.svg U.S. Highway 30
  • US 151 (IA).svg U.S. Highway 151
  • US 218 (IA).svg U.S. Highway 218
  • Iowa 1.svg Iowa Highway 1
  • Iowa 13.svg Iowa Highway 13

Adjacent counties

Demographics

Historical population
Census Pop.
1850 5,444
1860 18,947 248.0%
1870 31,080 64.0%
1880 37,237 19.8%
1890 45,303 21.7%
1900 55,392 22.3%
1910 60,720 9.6%
1920 74,004 21.9%
1930 82,336 11.3%
1940 89,142 8.3%
1950 104,274 17.0%
1960 136,899 31.3%
1970 163,213 19.2%
1980 169,775 4.0%
1990 168,767 −0.6%
2000 191,701 13.6%
2010 211,226 10.2%
2020 230,299 9.0%
U.S. Decennial Census
1790–1960 1900–1990
1990–2000 2010–2019
LinnCountyIowaPop2020
Population of Linn County from US census data

2020 census

The 2020 census recorded a population of 230,299 in the county, with a population density of 317.2724/sq mi (122.4996/km2). 94.04% of the population reported being of one race. 78.91% were non-Hispanic White, 7.14% were Black, 3.87% were Hispanic, 0.24% were Native American, 2.33% were Asian, 0.23% were Native Hawaiian or Pacific Islander and 7.28% were some other race or more than one race. There were 101,230 housing units, of which 94,751 were occupied.

2010 census

The 2010 census recorded a population of 211,226 in the county, with a population density of 294.4163/sq mi (113.6748/km2). There were 92,251 housing units, of which 86,134 were occupied.

Communities

Cities

Unincorporated communities

Ghost towns

Townships

  • Bertram
  • Boulder
  • Brown
  • Buffalo
  • Clinton
  • College
  • Fairfax
  • Fayette
  • Franklin
  • Grant
  • Jackson
  • Linn
  • Maine
  • Marion
  • Monroe
  • Otter Creek
  • Putnam
  • Spring Grove
  • Washington

Population ranking

The population ranking of the following table is based on the 2010 census of Linn County.

county seat

Rank City/Town/etc. Municipal type Population (2010 Census)
1 Cedar Rapids City 126,326
2 Marion City 34,768
3 Hiawatha City 7,024
4 Mount Vernon City 4,506
5 Robins City 3,142
6 Center Point City 2,421
7 Lisbon City 2,152
8 Fairfax City 2,123
9 Ely City 1,776
10 Walford (partially in Benton County) City 1,463
11 Central City City 1,257
12 Springville City 1,074
13 Palo City 1,026
14 Walker City 791
15 Alburnett City 673
16 Coggon City 658
17 Bertram City 294
18 Prairieburg City 178

See also

Kids robot.svg In Spanish: Condado de Linn (Iowa) para niños

Black History Month on Kiddle
Famous African-American Scientists:
Percy Lavon Julian
Katherine Johnson
George Washington Carver
Annie Easley
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