Town Hall Address United States- Polk County Website https://www.cityofmulberryfl.org/ County Clerk (863) 534-4000 https://www.polkcountyclerk.net/ Mon - Fri: 8am - 5pm 255 N Broadway Ave Bartow, 33830 United States Tax Collector (863) 534-4700 http://www.polktaxes.com/ Mon - Fri: 8:30am - 5pm 916 N Massachusetts Ave Lakeland, 33801 United States Assessor (863) 534-4777 http://www.polkpa.org/ Mon - Fri: 8am - 4:30pm 255 N Wilson Avenue Bartow, 33830 United States County Polk