| Place Name | Fairfield Township (Butler County) |
| Place Type | Township |
| County | Butler County |
| Area Code(s) | 283,513 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 22,526 |
| Majority Ethnicity | White 78.25% |
| Metro/Micro Stats Area | Cincinnati, OH-KY-IN |
| US Congressional District(s) | Ohio 8th |
| State House Districts | 51,52 |
| State Senate Districts | 4 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 78.25% |
| African American | 9.09% |
| Hispanic | 0.05% |
| Asian | 10.01% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.59% |