Town Hall Address 77 Park Rd. Prosperity, PA 15329 United States- Washington County Website http://morristwpwashco.org/ Tax Collector 724-222-0352 77 Park Rd. Prosperity, PA 15329 United States Zoning 724-222-0352 77 Park Rd. Prosperity, PA 15329 United States Fire District 724-222-1165 RR 1 Prosperity, PA 15329 United States County Washington