| Name | Nemaha County |
| State | Kansas |
| FIPS Code | 20131 |
| County Seat | Seneca |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 10,094 |
| Population Growth Rate(2020-2024) | -1.77% |
| Majority Ethnicity | White 95.92% |
| Public School Majority Ethnicity | White 92% |
| Partisan Voting Index | Strongly Republican:+34 |
| Unemployment Rate (May 2026) | 3.0% |
| Sales Tax Rate (2025) | 8% |
| Area Code(s) | 785 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 95.92% |
| African American | 0.64% |
| Hispanic | 2.54% |
| Asian | 0.4% |
| Native American | 0.49% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 92.25% |
| African American | 0.84% |
| Hispanic | 3.21% |
| Asian | 0.25% |
| Native American | 0.69% |
| Hawaiin/Pacific Islander | 0.1% |