Note: Townships whose names appear in italics are those still in existence.
| Brothers Valley 1768 | |||||
| Turkeyfoot 1773 | |||||
| Milford 1780 | |||||
| Somerset 1796 (formed from portions of Milford and Quemahoning) | |||||
| Jefferson 1847 (formed from portions of Somerset and Milford) | |||||
| Lincoln 1890 | |||||
| Middle Creek 1853 | |||||
| Black 1886 | |||||
| Addison 1800 | |||||
| Lower Turkeyfoot 1848 | |||||
| Upper Turkeyfoot 1848 | |||||
| Quemahoning 1775 | |||||
| Conemaugh 1801 | |||||
| Jenner 1811 (formed from portions of Conemaugh and Quemahoning) | |||||
| Stony Creek 1792 | |||||
| Shade 1816 | |||||
| Paint 1836 | |||||
| Ogle 1886 | |||||
| Elk Lick 1785 | |||||
| Summit 1842 (formed from portions of Elk Lick and Brothers Valley) |
| Cumberland 1767 | ||||
| Londonderry 1785 | ||||
| Southampton 1801 | ||||
| Greenville 1812 (formed from portions of Southampton and Elk Lick) | ||||
| Northampton 1852 | ||||
| Larimer 1854 (formed from portions of Northampton and Greenville) | ||||
| Allegheny 1805 | ||||
| Fairhope 1891 (formed from portions of Allegheny, Northampton and Southampton) |
