Town Hall Address 31 W. Quincy St. Westmont, IL 60559 United States- DuPage County Website https://www.westmont.illinois.gov/ Zoning 630-981-6200 31 W. Quincy St. Westmont, IL 60559 United States Fire District 630-981-6400 6015 S. Cass Ave. Westmont, IL 60559 United States Town Clerk 630-981-6210 31 W. Quincy St. Westmont, IL 60559 United States Water 630-981-6270 31 W. Quincy St. Westmont, IL 60559 United States Sewer 630-981-6270 31 W. Quincy St. Westmont, IL 60559 United States Tax Collector 630-981-6230 31 W. Quincy St. Westmont, IL 60559 United States Code Enforcement 630-981-6250 31 W. Quincy St. Westmont, IL 60559 United States County DuPage