McDonough County, Illinois facts for kids

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McDonough County, Illinois
Map
Map of Illinois highlighting McDonough County
Location in the state of Illinois
Map of the USA highlighting Illinois
Illinois's location in the U.S.
Statistics
Founded 1826
Seat Macomb
Largest City Macomb
Area
 - Total
 - Land
 - Water

590 sq mi (1,528 km²)
589 sq mi (1,526 km²)
0.8 sq mi (2 km²), 0.1%
Population
 - (2010)
 - Density

32,612
55/sq mi (21/km²)
Time zone Central: UTC-6/-5
Named for: Thomas Macdonough

McDonough County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 32,612. Its county seat is Macomb.

The Macomb, IL Micropolitan Statistical Area includes all of McDonough County.

History

McDonough County is named in honor of Thomas Macdonough who defeated a British squadron in the decisive naval Battle of Lake Champlain in the War of 1812. McDonough County was part of the "Military Tract" set aside by Congress for veterans of the War of 1812.

Geography

According to the U.S. Census Bureau, the county has a total area of 590 square miles (1,500 km2), of which 589 square miles (1,530 km2) is land and 0.8 square miles (2.1 km2) (0.1%) is water.

The county has the unusual distinction of forming a perfect square by Mercator map projection. The county seat, Macomb, is in the center of the county, and the courthouse is almost precisely in the center of the county.

Climate and weather

Weather chart for Macomb, Illinois
J F M A M J J A S O N D
 
 
1.5
 
32
13
 
 
1.7
 
38
18
 
 
2.9
 
50
29
 
 
3.8
 
62
39
 
 
4.6
 
73
50
 
 
4.4
 
83
60
 
 
4.5
 
87
64
 
 
3.5
 
85
62
 
 
4
 
77
54
 
 
2.9
 
66
42
 
 
3.2
 
50
31
 
 
2.3
 
36
19
temperatures in °F
precipitation totals in inches
source: The Weather Channel

In recent years, average temperatures in the county seat of Macomb have ranged from a low of 13 °F (−11 °C) in January to a high of 87 °F (31 °C) in July, although a record low of −30 °F (−34 °C) was recorded in February 1905 and a record high of 113 °F (45 °C) was recorded in August 1934. Average monthly precipitation ranged from 1.47 inches (37 mm) in January to 4.58 inches (116 mm) in May.

Major highways

  • US 67.svg U.S. Highway 67
  • US 136.svg U.S. Highway 136
  • Illinois 9.svg Illinois Route 9
  • Illinois 41.svg Illinois Route 41
  • Illinois 61.svg Illinois Route 61
  • Illinois 95.svg Illinois Route 95
  • Illinois 110.svg Illinois Route 110

Adjacent counties

Demographics

Historical population
Census Pop.
1840 5,308
1850 7,616 43.5%
1860 20,069 163.5%
1870 26,509 32.1%
1880 27,970 5.5%
1890 27,467 −1.8%
1900 28,412 3.4%
1910 26,887 −5.4%
1920 27,074 0.7%
1930 27,329 0.9%
1940 26,944 −1.4%
1950 28,199 4.7%
1960 28,928 2.6%
1970 36,653 26.7%
1980 37,467 2.2%
1990 35,244 −5.9%
2000 32,913 −6.6%
2010 32,612 −0.9%
Est. 2015 31,333 −3.9%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2013

As of the 2010 United States Census, there were 32,612 people, 13,057 households, and 6,724 families residing in the county. The population density was 55.3 inhabitants per square mile (21.4/km2). There were 14,419 housing units at an average density of 24.5 per square mile (9.5/km2). The racial makeup of the county was 90.4% white, 5.0% black or African American, 1.8% Asian, 0.2% American Indian, 0.7% from other races, and 1.8% from two or more races. Those of Hispanic or Latino origin made up 2.7% of the population. In terms of ancestry, 25.0% were German, 14.7% were American, 13.7% were Irish, 12.7% were English, and 5.1% were Italian.

Of the 13,057 households, 22.0% had children under the age of 18 living with them, 40.0% were married couples living together, 8.0% had a female householder with no husband present, 48.5% were non-families, and 33.9% of all households were made up of individuals. The average household size was 2.19 and the average family size was 2.80. The median age was 28.9 years.

The median income for a household in the county was $33,702 and the median income for a family was $52,390. Males had a median income of $42,297 versus $28,530 for females. The per capita income for the county was $18,344. About 12.8% of families and 23.7% of the population were below the poverty line, including 21.7% of those under age 18 and 9.4% of those age 65 or over.

Communities

Cities

Villages

Census-designated places

Other unincorporated place

Townships

  • Bethel Township
  • Blandinsville Township
  • Bushnell Township
  • Chalmers Township
  • Colchester Township
  • Eldorado Township
  • Emmet Township
  • Hire Township
  • Industry Township
  • Lamoine Township
  • Macomb Township
  • Macomb City Township
  • Mound Township
  • New Salem Township
  • Prairie City Township
  • Sciota Township
  • Scotland Township
  • Tennessee Township
  • Walnut Grove Township

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