City, Village & Township Government in Colchester, IL Colchester City Office206 E Market StColchester, IL, 623263097763675Carthage City HallCity OfCity Village Township Government Colchester Sewer/Water Billing500 E Roberts StColchester, IL, 623263097763005Carthage City HallCity OfCity Village Township Government Show MoreSee AlsoCity HallsFire Departments