Seneca city, Oregon
Official LSAD Designation: Seneca city • Census GEOID: 4166200
• Grant County
Seneca city is an incorporated city in Grant County, Oregon. According to official records from the Census (2025), Seneca city had an estimated population of 160 residents. Official Census Bureau geographic records classify this community under LSAD designation Seneca city (GEOID 4166200).
Local Government Administration U.S. Census Bureau GMAF
City Of Seneca
Municipal
Official Title:
City Recorder/manager
Address:
PO BOX 208, SENECA OR 97873-0208
County Of Grant
County
Official Title:
County Court Secretary
Address:
201 S HUMBOLT ST, STE 280, CANYON CITY OR 97820-6192
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 160 | 2025 |
| Median Household Income | $39,821 | 2020-2024 |
| Median Home Value | $156,300 | 2020-2024 |
| Land Area | 0.79 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).