| View |
Creation |
Unknown (placeholder) |
Reduction |
Jul 1767 |
| View |
Reduction |
Greenwood, Township of (Perry) |
Expansion |
Mar 21, 1772 |
| View |
Reduction |
Potter, Township of (Northumberland, defunct) |
Creation |
May 1774 |
| View |
Reduction |
Beaver, Township of (Snyder) |
Creation |
May 28, 1787 |
| View |
Expansion |
Buffalo, Township of (Union) |
Reduction |
Feb 24, 1789 |
| View |
Reduction |
Mahantongo, Township of (Union, defunct) |
Creation |
Apr 1796 |
| View |
Reduction |
Center, Township of (Snyder) |
Creation |
Apr 1805 |
| View |
Reduction |
Washington, Township of (Snyder) |
Creation |
Dec 14, 1818 |
| View |
Reduction |
Chapman, Township of (Snyder) |
Creation |
1820 |
| View |
Reference |
Susquehanna, Township of (Union, proposed) |
Reference |
1820 |
| View |
Reduction |
Union, Township of (Union) |
Expansion |
1822–1824 |
| View |
Reduction |
Selinsgrove, Borough of (Union, defunct) |
Creation |
May 11, 1827 |
| View |
Expansion |
Selinsgrove, Borough of (Union, defunct) |
Dissolution |
Jan 11, 1828 |
| View |
Reduction |
Middlecreek, Township of (Snyder) |
Creation |
Sep 1838 |
| View |
Reduction |
Selinsgrove, Borough of (Snyder) |
Creation |
Sep 26, 1853 |
| View |
Reduction |
Jackson, Township of (Union, defunct) |
Creation |
Feb 24, 1854 |
| View |
Expansion |
Jackson, Township of (Union, defunct) |
Reduction |
Dec 1, 1855 |
| View |
Expansion |
Union, Township of (Union) |
Reduction |
Dec 1, 1855 |
| View |
Reduction |
Monroe, Township of (Snyder) |
Creation |
1856 |
| View |
Reference |
Monroe, Township of (Snyder) |
Reference |
1856 |
| View |
Reduction |
Jackson, Township of (Snyder) |
Expansion |
May 29, 1856 |
| View |
Reduction |
Jackson, Township of (Snyder) |
Expansion |
1857–1858 |
| View |
Ascertainment |
Selinsgrove, Borough of (Snyder) |
Ascertainment |
1901 |
| View |
Reduction |
Selinsgrove, Borough of (Snyder) |
Expansion |
1906 |
| View |
Reduction |
Selinsgrove, Borough of (Snyder) |
Expansion |
1926 |
| View |
Reduction? |
Selinsgrove, Borough of (Snyder) |
Expansion? |
1926–1937 |
| View |
Reduction |
Selinsgrove, Borough of (Snyder) |
Expansion |
1938 |
| View |
Reduction |
Selinsgrove, Borough of (Snyder) |
Expansion |
1939 |
| View |
Reduction |
Selinsgrove, Borough of (Snyder) |
Expansion |
May 22, 1957 |
| View |
Reduction |
Selinsgrove, Borough of (Snyder) |
Expansion |
Nov 4, 1959 |
| View |
Reduction |
Selinsgrove, Borough of (Snyder) |
Expansion |
Nov 4, 1959 |
| View |
Reduction |
Selinsgrove, Borough of (Snyder) |
Expansion |
Feb 1, 1960 |
| View |
Reduction |
Selinsgrove, Borough of (Snyder) |
Expansion |
1963 |
| View |
Reduction |
Selinsgrove, Borough of (Snyder) |
Expansion |
1965–1966 |
