ISP District 5 - If this is an emergency, dial 911

Counties Served: Grundy, Kendall, and Will

The Illinois State Police, District 5 (Joliet) is located in Lockport and is responsible for the enforcement and emergency responses in Grundy, Kendall, and Will Counties. District 5 borders both Cook and DuPage Counties, as such District 5 experiences many of the same issues as their counterparts in District Chicago and District 2. The District was once considered rural in nature, but the growth in population, commercial development and employment has exploded over the last decade. District 5 has three major interstate highways running through it: I-55, I-57 and I-80. Additionally, I-355’s southern leg runs through Will County and connects with I-80. District 5 is home to three nuclear power plants, two fossil fuel plants, two petroleum refineries, over 450 miles of natural gas and oil pipelines serving 80% of the Chicago area, two riverboat gaming facilities, two commercial raceway facilities which bring in an excess of 115,000 spectators to events annually, three critical interstate bridges over the Des Plaines and Kankakee Rivers, four interstate rest areas and six truck weight inspection scales.

Contact Us

  • Headquarters:
  • 16648 S. Broadway Street
  • Lockport, IL 60441
  • Phone: (815) 726-6377

  • Hours:
  • Monday-Friday, 8:00 a.m. – 5:00 p.m
  • (Excluding holidays and weekends)