Town Hall Address 2430 Main St Calhoun, IL 62419 United States- Richland County Zoning (618) 841-1332 2430 Main St Calhoun, IL 62419 United States Town Clerk (618) 841-1332 2430 Main St Calhoun, IL United States Tax Collector (618) 392-8341 103 W Main St #13 Olney, IL 62450 United States County Richland