| 00663886 | Credit River Township (historical) | 1990 | 3.30 | Census Bureau |
| 00663886 | Credit River Township (historical) | 2000 | 3.13 | Census Bureau |
| 00663886 | Credit River Township (historical) | 2010 | 3.06 | Census Bureau |
| 00663886 | Credit River Township (historical) | 2020 | 3.02 | Census Bureau |