Town Hall Address 100 Cross Street Mifflintown, PA 17059 United States- Juniata County Website http://www.mifflintownborough.com/Pages/Home.aspx Deed Registry 717-436-7709 1 North Main Street Mifflintown, PA 17059 United States Tax Collector 717- 436-9475 100 Cross Street Mifflintown, PA 17059 United States County Juniata