Town Hall Address 113 W Seminary Ave Onarga, IL 60955 United States- Iroquois County Website http://villageofonarga.com/index.php Zoning (815) 268-7311 113 W Seminary Ave Onarga, IL 60955 United States Fire District (815) 268-7831 117 E Lincoln Onarga, IL 60955 United States Town Clerk (815) 268-7311 113 W Seminary Ave Onarga, IL 60955 United States Tax Collector (815) 432-6985 1001 E Grant St Watseka, IL 60970 United States County Iroquois