Seneca city, Kansas
Official LSAD Designation: Seneca city • Census GEOID: 2063950
• Nemaha County
Seneca city is an incorporated city in Nemaha County, Kansas. According to official records from the Census (2025), Seneca city had an estimated population of 2,139 residents. Official Census Bureau geographic records classify this community under LSAD designation Seneca city (GEOID 2063950).
Local Government Administration U.S. Census Bureau GMAF
City Of Seneca
Municipal
Official Title:
Mayor
Address:
PO BOX 40, SENECA KS 66538
County Of Nemaha
County
Official Title:
Chairman
Address:
PO BOX 186, SENECA KS 66538-0186
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 2,139 | 2025 |
| Median Household Income | $76,750 | 2020-2024 |
| Median Home Value | $235,100 | 2020-2024 |
| Land Area | 1.79 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).