Town Hall Address 2020 O'Plaine Rd Green Oaks, IL 60048 United States- Lake County Website http://www.greenoaks.org/ Zoning (847) 362-5363 2020 O'Plaine Rd Green Oaks, IL 60048 United States Fire District 847-362-5664 1551 N Milwaukee Ave Libertyville, IL 60048 United States Town Clerk (847) 362-5363 2020 O'Plaine Rd Green Oaks, IL 60048 United States Tax Collector 847-377-2323 18 N County Street Room 102 Waukegan, IL 60085 United States County Lake