Town Hall Address 380 Lake St. South Wilmington, IL 60474 United States- Grundy County Website https://villageofsouthwilmington.com/ Zoning 815-343-1708 380 Lake St. South Wilmington, IL 60474 United States Fire District 815-237-2244 330 Lake St. South Wilmington, IL 60474 United States Town Clerk 815-237-2241 380 Lake St. South Wilmington, IL 60474 United States Water 815-237-2241 380 Lake St. South Wilmington, IL 60474 United States Sewer 815-237-2241 380 Lake St. South Wilmington, IL 60474 United States Tax Collector 815-237-2241 380 Lake St. South Wilmington, IL 60474 United States Code Enforcement 815-343-1708 380 Lake St. South Wilmington, IL 60474 United States County Grundy