| Township |
Formed |
| Abbott |
1851 from Eulalia Township |
| Allegheny |
1828 from Eulalia Township |
| Bingham |
1828 from Harrison Township |
| Clara, called Milton Township till 1830 |
1828 from Eulalia Township |
| East Fork |
|
| Eulalia |
1810 from Dunnstable Township |
| Genesee, originally called London Township |
1828 from Eulalia Township |
| Harrison |
1828 from Eulalia Township |
| Hebron |
1828 from Eulalia Township |
| Hector |
1828 from Eulalia Township |
| Homer |
1853 from Eulalia Township |
| Keating |
1856 |
| Oswayo, originally called Chester Township |
1828 from Eulalia Township |
| Pike |
1828 from Eulalia Township |
| Pleasant Valley |
1847 from Clara Township |
| Portage |
1860 from Wharton Township |
| Roulette |
1816 from Eulalia Township |
| Sharon |
1828 from Eulalia Township |
| Stewardson |
1856 from Eulalia Township |
| Summit |
1853 from Wharton and Eulalia Townships |
| Sweden |
1828 from Eulalia Township |
| Sylvania |
1856 from Homer and Wharton Townships |
| Ulysses |
1828 from Eulalia Township |
| West Branch |
1856 from Eulalia Township |
| Wharton |
1826 from Eulalia Township |
