Town Hall Address 212 W. Washington St. Oskaloosa, KS 66066 United States- Jefferson County Website http://www.cityofoskaloosaks.org Zoning 785-863-2651 212 W. Washington St. Oskaloosa, KS 66066 United States Town Clerk 785-863-2651 212 W. Washington St. Oskaloosa, KS 66066 United States Tax Collector 785-863-2651 212 W. Washington St. Oskaloosa, KS 66066 United States Town Hall Hours Monday - Friday: 7:30 AM - 4:00 PM County Jefferson