According to our records, this business is located at 16249 IL Highway 78 in Annawan (in Henry County), Illinois 61234, the location GPS coordinates are: 41.3828312 (latitude), -89.9049487 (longitude). Illinois Power Co is categorized under Distribution, Electric Power (SIC code 4911). Current estimates show that the unit has a sales volume of $9,240,000 and staff of approximately 15 people. You can contact the company by phone at (309) 935-6315.