Will County is located in northeastern Illinois and is the fourth-most populous county in the state with a population of 696,355 in 2020. Joliet serves as its county seat. Will County is part of the Chicago metropolitan area, specifically one of the five collar counties. It is covered by three area codes: 815 and 779 around Joliet, 630 and 331 in the far northern part, and 708 in the central and eastern portions of the county.
1969: Fourth courthouse completed
The fourth courthouse, designed in the Brutalist style, was completed in 1969.
1972: Joliet Refinery Construction
According to ExxonMobil, the Joliet Refinery was constructed in 1972.
1980: Voted for national winner
Will County voted for the national winner in the presidential election of 1980.
January 1985: Record low temperature in Joliet
In January 1985, a record low temperature of −26 °F (−32 °C) was recorded in Joliet.
June 1988: Record high temperature in Joliet
In June 1988, a record high temperature of 104 °F (40 °C) was recorded in Joliet.
1988: Republican stronghold
Will County voted Republican in all but three elections from 1892 to 1988.
2010: 2010 Census
According to the 2010 census, Will County had a population of 677,560.
2012: Voted for national winner
Will County voted for the national winner in the presidential election of 2012.
2020: New courthouse completed
A new courthouse, designed by Wight & Co., was completed in 2020.
2020: 2020 Census
According to the 2020 census, Will County had a population of 696,355, which made it the fourth-most populous county in Illinois.
2020: Jennifer Bertino-Tarrant takes office
Jennifer Bertino-Tarrant took office as the county executive in 2020.
2022: Courthouse listed as endangered
In 2022, the Landmarks Preservation Council of Illinois included the 1969 courthouse on its “2022 Most Endangered Historic Places in Illinois”.
December 4, 2023: Demolition of 1969 courthouse begins
On December 4, 2023, demolition of the 1969 courthouse began after considerable controversy.
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