| Place Name | Fairfax Township |
| Place Type | Township |
| ZIP Code(s) | 66414 66451 66523 66537 66543 |
| County | Osage County |
| Area Code(s) | 785 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 462 |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Topeka, KS |
| US Congressional District(s) | Kansas 2nd |
| State House Districts | 59 |
| State Senate Districts | 19 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |