1,164 cities · 1,396 ZIP codes · 102 counties
UtilityFinder tracks utility providers across 1,164 cities and 1,396 ZIP codes in Illinois, covering electric, natural gas, water, sewer, trash, and internet service. Illinois has a deregulated retail electricity market, meaning residents can choose their electric supplier from competing providers. The local utility still handles the physical delivery and billing infrastructure. The average residential electricity rate in Illinois is 15.87¢ per kWh, approximately 4% below the national average of 16.48¢. Natural gas service in Illinois is available through a retail choice program — customers may be able to select their gas supplier separately from the local utility.