Town Hall Address 770 Rouse Ave. Youngsville, PA 16371 United States- Warren County Tax Collector 814-563-4957 P.O. Box 205 Youngsville, PA 16371 United States Fire District 814-563-4455 222 E Main St. Youngsville, PA 16371 United States Sewer 814-723-3775 1137 Follett Run Rd. Warren, PA 16365 United States County Warren