| Place Name | Clay Center |
| Place Type | City |
| ZIP Code(s) | 67432 |
| County | Clay County |
| Area Code(s) | 785 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 4,338 |
| Population Growth Rate (2010-19) | -3.11% |
| Majority Ethnicity | White 95.42% |
| US Congressional District(s) | Kansas 1st |
| State House Districts | 64 |
| State Senate Districts | 22 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.42% |
| African American | 3.08% |
| Hispanic | 0% |
| Asian | 0.5% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1% |