| Will County Illinois Cities/Towns -
Beecher, Bolingbrook, Braidwood, Crest Hill, Frankfort, Joliet (County Seat), Lakewood Shores, Lockport, Manhattan, Mokena, Monee, New Lenox, Romeoville, Shorewood, Steger, University Park |
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Your Ad Here Will County is a county located in the northern part of the U.S. state of Illinois. In 2007, the estimated population was 673,586. The county seat is Joliet. History Will County was formed in 1836. It was named after Dr. Conrad Will, a businessman involved in salt production in southern Illinois, and also a politician. ![]() |