Wilmington Township Municipal Bldg--mercer County 35 Auction Rd New Wilmington, PA 16142 Phone : (724) 946-8074 Business Category Government Offices-City Village & Twp Government Offices State & Local Legislative Bodies Government Offices & Public Schools Wilmington Township--municipal Bldg, Mercer County Rr 3 New Castle, PA 16105 Phone : (724) 946-8074 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools