Sunbury is the county seat for Northumberland County
Milton is in Northumberland County
Northumberland County (113) ►ADJACENT TO NORTHUMBERLAND COUNTY Columbia County (74) ► Dauphin County (318) ► Juniata County (20) ► Lycoming County (196) ► Montour County (23) ► Perry County (156) ► Schuylkill County (136) ► Snyder County (38) ► Union County (81) ►
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| On N. Front Street at Broadway Street on N. Front Street. |
| On N. Front Street at Broadway Street on N. Front Street. |
| On Broadway Street (Pennsylvania Route 254) just west of South Arch Street (Pennsylvania Route 405), on the right when traveling west. |
| On Broadway Street (Pennsylvania Route 254) just west of South Arch Street (Pennsylvania Route 405), on the right when traveling west. |
| On Arch Street (Pennsylvania Route 405) just north of Mahoning Street (Pennsylvania Route 642), on the right when traveling north. |
| On South Arch Street (Pennsylvania Route 405) just south of Walnut Street, on the right when traveling north. |
| On Arch Street (Pennsylvania Route 405) just north of Mahoning Street (Pennsylvania Route 642), on the right when traveling north. |
| On N. Front Street at Broadway Street on N. Front Street. |
| On Broadway Street (Pennsylvania Route 254) just east of North Filbert Street, on the right when traveling east. |
| On S. Front Street at Mahoning Street on S. Front Street. |
| On Arch Street (Pennsylvania Route 405) just north of Mahoning Street (Pennsylvania Route 642), on the right when traveling north. |
| On N. Front Street at Broadway Street on N. Front Street. |
| On S. Front Street at Mahoning Street on S. Front Street. |
| On S. Front Street at Mahoning Street on S. Front Street. |
| On Arch Street (Pennsylvania Route 405) just north of Mahoning Street (Pennsylvania Route 642), on the right when traveling north. |
| On Broadway Street (Pennsylvania Route 254) just west of South Arch Street (Pennsylvania Route 405), on the right when traveling west. |
| On Broadway Street (Pennsylvania Route 254) just west of South Arch Street (Pennsylvania Route 405), on the right when traveling west. |
| On Arch Street (Pennsylvania Route 405) north of Race Street, on the right when traveling north. |
| On South Arch Street (Pennsylvania Route 405) just south of Walnut Street, on the right when traveling north. |
| On Broadway Street (Pennsylvania Route 254) just east of North Filbert Street, on the right when traveling east. |
| On N. Front Street at Broadway Street on N. Front Street. |
| On Broadway Street (Pennsylvania Route 254) just west of South Arch Street (Pennsylvania Route 405), on the right when traveling west. |
| On N. Front Street at Broadway Street on N. Front Street. |
| On Arch Street (Pennsylvania Route 405) north of Race Street, on the right when traveling north. |
| On N. Front Street at Broadway Street on N. Front Street. |
| On Pennsylvania Route 405, 0.1 miles south of Pennsylvania Route 45, on the left when traveling south. |
| On Front Street, on the right when traveling south. |
| Near Pennsylvania Route 405. |