Will County is a county in the northeastern part of the state of Illinois. According to the 2020 census, it had a population of 696,355, an increase of 2.8% from 677,560 in 2010, making it Illinois's fourth-most populous county.[1] The county seat is Joliet.[2] Will County is one of the five collar counties of the Chicago–Naperville–Elgin, IL–IN–WI Metropolitan Statistical Area. The portion of Will County around Joliet uses area codes 815 and 779, while 630 and 331 are for far northern Will County and 708 is for central and eastern Will County.
History
Will County was formed on January 12, 1836, out of Cook and Iroquois Counties. It was named after Conrad Will, a politician and businessman involved in salt production in southern Illinois.[3] Will was a member of the first Illinois Constitutional Convention and a member of the Illinois legislature until his death in 1835. Besides its present area, the county originally included the part of Kankakee County, Illinois, north of the Kankakee River. It lost that area when Kankakee County was organized in 1852. Since then its boundaries have not changed.
"WILL, a county in the E. N. E. part of Illinois, bordering on Indiana, has an area of 1,236 square miles (3,200 km2). It is intersected by the Kankakee and Des Plaines Rivers, branches of the Illinois. The surface is generally level, and destitute of timber, excepting small groves. The soil is very fertile, and much of it is under cultivation. The soil of the prairies is a deep, sandy loam, adapted to Indian corn and grass. In 1850 the county produced 527,903 bushels of Indian corn; 230,885 of wheat; 334,360 of oats; 32,043 tons of hay, and 319,054 pounds of butter. It contained 14 churches, 3 newspaper offices; 3472 pupils attending public schools, and 200 attending other schools. Quarries of building stone are worked near the county seat. The Des Plaines river furnishes water-power. The county is intersected by the Illinois and Michigan canal, by the Chicago branch of the Central railroad, the Chicago and Mississippi, and by the Chicago and Rock Island railroad. Named in honor of Conrad Will, for many years a member of the Illinois legislature. Capital, Joliet. Population 16,703."
— 1854 U.S. Gazetteer
Will County from its 1836 creation to 1852
Will County in 1853, reduced to its current borders by the creation of Kankakee County
Geography
According to the U.S. Census Bureau, the county has an area of 849 square miles (2,200 km2), of which 837 square miles (2,170 km2) is land and 12 square miles (31 km2) (1.5%) is water.[4]
In recent years, average temperatures in the county seat of Joliet have ranged from a low of 13 °F (−11 °C) in January to a high of 85 °F (29 °C) in July, although a record low of −26 °F (−32 °C) was recorded in January 1985 and a record high of 104 °F (40 °C) was recorded in June 1988. Average monthly precipitation ranged from 1.58 inches (40 mm) in January to 4.34 inches (110 mm) in July.[5]
U.S. Decennial Census[7] 1790–1960[8] 1900–1990[9] 1990–2000[10] 2010[11] 2020[1]
Will County, Illinois – Racial and ethnic composition Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
As of the 2010 Census, there were 677,560 people, 225,256 households, and 174,062 families residing in the county.[15] The population density was 809.6 inhabitants per square mile (312.6/km2). There were 237,501 housing units at an average density of 283.8 per square mile (109.6/km2).[4] The racial makeup of the county was 76.0% white, 11.2% black or African American, 4.6% Asian, 0.3% American Indian, 5.8% from other races, and 2.3% from two or more races. Those of Hispanic or Latino origin made up 15.6% of the population.[15] In terms of ancestry, 21.6% were German, 18.6% were Irish, 13.3% were Polish, 11.1% were Italian, 5.9% were English, and 2.1% were American.[16]
Of the 225,256 households, 44.0% had children under 18 living with them, 61.9% were married couples living together, 10.9% had a female householder with no husband present, 22.7% were non-families, and 18.5% of all households were made up of individuals. The average household size was 2.97 and the average family size was 3.41. The median age was 35.4.[15]
The median income for a household in the county was $75,906 and the median income for a family was $85,488. Males had a median income of $60,867 versus $40,643 for females. The per capita income was $29,811. About 5.0% of families and 6.6% of the population were below the poverty line, including 9.0% of those under 18 and 5.6% of those 65 or older.[17]
Government
Will County is governed by a 22-member county board elected from 11 districts. Each district elects two members. The county executive, county clerk, coroner, auditor, treasurer, recorder of deeds, state's attorney, and sheriff are all elected in a countywide vote. The current county executive is Jennifer Bertino-Tarrant, who took office in 2020.
Will County government has been housed in a succession of courthouses, the first being erected in 1837.[18] The fourth courthouse was designed of reinforced concrete in the Brutalist style by Otto Stark of C.F. Murphy Associates and completed in 1969. Citing lack of space, inefficiency and high operating costs, the County Board chose to erect a new courthouse, which was designed by Wight & Co. and completed in 2020.[19] Considerable controversy surrounded the disposition of the 1969 courthouse, with Landmarks Preservation Council of Illinois including the building on its “2022 Most Endangered Historic Places in Illinois”.[20] After a number of votes and appeals, demolition was approved and the destruction of the building began on December 4, 2023.[21]
Politics
Like most of the collar counties, Will County was once a Republican stronghold. It went Republican in all but three elections from 1892 to 1988. Since the 1990s, it has become a swing county. It voted for the national winner in every presidential election from 1980 to 2012, but Chicago-born Hillary Clinton won it along with the rest of the "collar counties" aside from McHenry in 2016.
United States presidential election results for Will County, Illinois[22]
The county is in Community College District 525 and is served by Joliet Junior College in Joliet.[23] Joliet Junior College was the first two-year higher education institution in the United States.
K-12 school districts
K-12 school districts, including any with any territory in Will County, no matter how slight, even if the schools and/or administrative headquarters are in other counties:[24]
Will County is served by four U.S. interstate highways, four U.S. highways, and 12 Illinois highways. Pace provides bus transit services within the county.
Will County is a major hub in the national natural gas pipeline grid where pipelines from Canada and the Gulf of Mexico meet and then fan out to serve the Midwest. The following major energy companies own pipeline that runs through Will County:
^"Archived copy"(PDF). Archived(PDF) from the original on October 5, 2013. Retrieved August 30, 2013.{{cite web}}: CS1 maint: archived copy as title (link)
General
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. ISBN0-934213-48-8. {{cite book}}: |first= has generic name (help)
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