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Iroquois County, Illinois
Map of Illinois highlighting Iroquois County
Location in the state of Illinois
Map of the U.S. highlighting Illinois
Illinois's location in the U.S.
Founded 1833
Seat Watseka
Largest city Watseka
 - Total
 - Land
 - Water

1,118 sq mi (2,896 km²)
1,116 sq mi (2,892 km²)
2 sq mi (4 km²), 0.14%
 - (2000)
 - Density

28/sq mi (11/km²)
Time zone Central: UTC-6/-5

Iroquois County is a county located in the U.S. state of Illinois. As of 2000, the population was 31,334. Its county seat is Watseka6.


According to the US Census Bureau, the county has a total area of 2,896 km² (1,118 sq mi). 2,892 km² (1,116 sq mi) of it is land and 4 km² (2 sq mi) of it (0.14%) is water.

Adjacent counties[]


Iroquois County was formed in 1833 out of Vermilion County. It was named for the Iroquois people.

Notable people from Iroquois County include:

  • Henry Bacon, architect of the Lincoln Memorial in Washington, DC and other notable public buildings, born in Watseka in 1866
  • Fern Andre, movie actress and director from 1913 to 1930, born in Watseka in 1893
  • Rex Everhart, Broadway actor who voiced the role of Maurice in the Disney Film "Beauty & The Beast," born in Watseka in 1920


Iroquois County
Population by year

2000 - 31,334
1990 - 30,787
1980 - 32,976
1970 - 33,532
1960 - 33,562
1950 - 32,348
1940 - 32,496
1930 - 32,913
1920 - 34,841
1910 - 35,543
1900 - 38,014
1890 - 35,167
1880 - 35,451
1870 - 25,782
1860 - 12,325
1850 - 4,149
1840 - 1,695

2000 census age pyramid for Iroquois County.

As of the census² of 2000, there were 31,334 people, 12,220 households, and 8,712 families residing in the county. The population density was 11/km² (28/sq mi). There were 13,362 housing units at an average density of 5/km² (12/sq mi). The racial makeup of the county was 95.93% White, 0.71% Black or African American, 0.17% Native American, 0.30% Asian, 0.02% Pacific Islander, 2.07% from other races, and 0.79% from two or more races. 3.88% of the population were Hispanic or Latino of any race.

There were 12,220 households out of which 31.30% had children under the age of 18 living with them, 59.20% were married couples living together, 8.50% had a female householder with no husband present, and 28.70% were non-families. 25.20% of all households were made up of individuals and 13.40% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 2.99.

In the county the population was spread out with 25.40% under the age of 18, 7.10% from 18 to 24, 25.70% from 25 to 44, 23.60% from 45 to 64, and 18.10% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 96.20 males. For every 100 females age 18 and over, there were 91.80 males.

The median income for a household in the county was $38,071, and the median income for a family was $45,417. Males had a median income of $31,799 versus $20,936 for females. The per capita income for the county was $18,435. About 6.80% of families and 8.70% of the population were below the poverty line, including 11.80% of those under age 18 and 6.70% of those age 65 or over.

Cities and towns[]

Map of Iroquois County, Illinois.


Major highways[]


  • Forstall, Richard L. (editor) (1996). Population of states and counties of the United States: 1790 to 1990 : from the twenty-one decennial censuses. United States Department of Commerce, Bureau of the Census, Population Division. ISBN 0-934213-48-8. 

External links[]

Coordinates: 40°44′N 87°49′W / 40.74, -87.82

This page uses content from the English language Wikipedia. The original content was at Iroquois County, Illinois. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.