Download the list of Gas stations in Illinois. Smartscrapers provides an accurate directory and the latest data on the number of Gas stations in Illinois There are 6585 Gas stations in Illinois as of April 1, 2026; which is an 0.00% increase from 2023. Of these locations, 2048 Gas stations which is 31.10% of all Gas stations in Illinois are single-owner operations, while the remaining 4537 which is 68.90% are part of larger brands. The top three cities with the most Gas stations are Chicago with 3013 Gas stations, Poplar Grove with 239 Gas stations, Peoria with 184 Gas stations. Average age of Gas stations in Illinois is 8 years and 2 months.