Northumberland County Pennsylvania Court Courts of Common Pleas Magisterial District Courts Courts of Common Pleas in Northampton County Northumberland County Court of Common PleasNorthumberland County Courthouse201 Market St, Sunbury, PA 17801Phone: 570-988-4148 (Criminal)Phone: 570-988-4151 (Civil)Fax: 570-988-4581 Northumberland County Orphans’ CourtNorthumberland County Courthouse201 Market Street, Sunbury, PA 17801Phone: 570-988-4143Fax: 570-988-4141 Magisterial District Courts in Northumberland County Northumberland County Magisterial District Court 08-2-01150 S Market St, Mt. Carmel, PA 17851Phone: 570-339-2140Fax: 570-339-4433 Northumberland County Magisterial District Court 08-3-021 Broadway St, Milton, PA 17847Phone: 570-742-7446Fax: 570-742-2144 Northumberland County Magisterial District Court 08-3-032 E Arch St, Shamokin, PA 17872Phone: 570-644-0736Fax: 570-644-3958 Northumberland County Magisterial District Court 08-3-04399 Stadium Dr, Sunbury, PA 17801Phone: 570-988-4485Fax: 570-988-3954