Warren County, Illinois facts for kids

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Warren County, Illinois
Map
Map of Illinois highlighting Warren County
Location in the state of Illinois
Map of the USA highlighting Illinois
Illinois's location in the U.S.
Statistics
Founded 1825
Seat Monmouth
Largest City Monmouth
Area
 - Total
 - Land
 - Water

543 sq mi (1,406 km²)
542 sq mi (1,404 km²)
0.6 sq mi (2 km²), 0.1%
Population
 - (2010)
 - Density

17,707
33/sq mi (13/km²)
Time zone Central: UTC-6/-5
Website: www.warrencountyil.com
Named for: Joseph Warren

Warren County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 17,707. Its county seat is Monmouth.

History

Warren County was organized in 1825 out of Pike County which consisted of all portions of the state north and west of the Illinois River before 1825. Henderson County was formed in 1841 from the western area of Warren County.

Warren County was named for Dr. Joseph Warren, killed at the Battle of Bunker Hill in 1775. He is believed to have been the first officer to die in the Revolutionary War.

The current courthouse, constructed of red Portage stone, was completed in 1895.

Geography

According to the U.S. Census Bureau, the county has a total area of 543 square miles (1,410 km2), of which 542 square miles (1,400 km2) is land and 0.6 square miles (1.6 km2) (0.1%) is water.

Climate and weather

Weather chart for Monmouth, Illinois
J F M A M J J A S O N D
 
 
1.6
 
31
15
 
 
1.7
 
37
21
 
 
2.9
 
49
30
 
 
3.8
 
63
41
 
 
4.3
 
73
51
 
 
4.3
 
81
60
 
 
4.3
 
85
64
 
 
4
 
83
62
 
 
3.5
 
77
54
 
 
3
 
65
43
 
 
2.7
 
49
32
 
 
2.3
 
35
20
temperatures in °F
precipitation totals in inches
source: The Weather Channel

In recent years, average temperatures in the county seat of Monmouth have ranged from a low of 15 °F (−9 °C) in January to a high of 85 °F (29 °C) in July, although a record low of −27 °F (−33 °C) was recorded in February 1905 and a record high of 110 °F (43 °C) was recorded in July 1936. Average monthly precipitation ranged from 1.62 inches (41 mm) in January to 4.33 inches (110 mm) in July.

Adjacent counties

Demographics

Historical population
Census Pop.
1830 308
1840 6,739 2,088.0%
1850 8,176 21.3%
1860 18,336 124.3%
1870 23,174 26.4%
1880 22,933 −1.0%
1890 21,281 −7.2%
1900 23,163 8.8%
1910 23,313 0.6%
1920 21,488 −7.8%
1930 21,745 1.2%
1940 21,286 −2.1%
1950 21,981 3.3%
1960 21,587 −1.8%
1970 21,595 0.0%
1980 21,943 1.6%
1990 19,181 −12.6%
2000 18,735 −2.3%
2010 17,707 −5.5%
Est. 2015 17,527 −1.0%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2013

At the 2010 United States Census, there were 17,707 people, 6,918 households and 4,617 families residing in the county. The population density was 32.6 inhabitants per square mile (12.6/km2). There were 7,682 housing units at an average density of 14.2 per square mile (5.5/km2). The racial makeup of the county was 91.3% white, 1.7% black or African American, 0.5% Asian, 0.2% American Indian, 0.1% Pacific islander, 4.5% from other races, and 1.6% from two or more races. Those of Hispanic or Latino origin made up 8.4% of the population. In terms of ancestry, 25.2% were German, 14.7% were Irish, 11.3% were English, 10.0% were Swedish, and 5.5% were American.

Of the 6,918 households, 29.6% had children under the age of 18 living with them, 52.2% were married couples living together, 9.7% had a female householder with no husband present, 33.3% were non-families, and 28.2% of all households were made up of individuals. The average household size was 2.40 and the average family size was 2.91. The median age was 39.6 years.

The median household income was $41,636 and the median family income was $49,623. Males had a median income of $40,289 and females $25,460. The per capita incomewas $20,047. About 11.0% of families and 13.4% of the population were below the poverty line, including 18.1% of those under age 18 and 10.6% of those age 65 or over.

Transportation

Airport

Major highways

  • US 34.svg U.S. Highway 34
  • US 67.svg U.S. Highway 67
  • Illinois 94.svg Illinois Route 94
  • Illinois 116.svg Illinois Route 116
  • Illinois 135.svg Illinois Route 135
  • Illinois 164.svg Illinois Route 164

Communities

City

Villages

Unincorporated communities

Townships

Warren County is divided into these townships:

  • Berwick
  • Cold Brook
  • Ellison
  • Floyd
  • Greenbush
  • Hale
  • Kelly
  • Lenox
  • Monmouth
  • Point Pleasant
  • Roseville
  • Spring Grove
  • Sumner
  • Swan
  • Tompkins

Warren County, Illinois Facts for Kids. Homework Help - Kiddle Encyclopedia.