In 1772 Northumberland County was created and at that time encompassed the land areas of all Susquehanna, Lackawanna, Luzerne, Wyoming, Columbia, Montour, Snyder, Union, Centre, and part Bradford, Lycoming, Clinton, Centre and Mifflin Counties. By 1850 it became the area as we know it today.
RESEARCH RESOURCES
Northumberland County Courthouse Information
Northumberland County Historical Society
Northumberland County Library System
Northumberland County US GenWeb Project
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(Northumberland County Township Map courtesy of Kristin Bryson and Bare Roots Publishing.)
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