Seneca
City in Nemaha County, Kansas

Seneca is a city in Nemaha County, Kansas, with 2,139 residents (2020 Census). It sits at 1,138 ft (347 m) above sea level. The nearest town is St. Benedict, 4.2 miles NW.
- 2,139residents (2020 Census)
- 1,138 ftelevation · 347 m
- 1.8 sq miland area · 4.6 km²
- 1,196 / sq mipopulation density
- 66538ZIP code
About Seneca
Seneca is a city in and the county seat of Nemaha County, Kansas, United States. As of the 2020 census, the population of the city was 2,139.
Text: Wikipedia · CC BY-SA 4.0
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Living in Seneca
- Median household income
- $76,750
- Median home value
- $235,100
- Median rent
- $602/mo
- Median age
- 51.8
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Map of Seneca
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Open in Google Maps ›Seneca, KS population
Seneca had 2,139 residents in the 2020 Census.
| 2020 Census | 2,139 |
|---|---|
| Density | 1,196 per sq mi (462 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Seneca at a glance
| State | Kansas (KS) |
|---|---|
| County | Nemaha County |
| Type | City |
| Population | 2,139 (2020) |
| Land area | 1.79 sq mi (4.6 km²) |
| Elevation | 1,138 ft (347 m) |
| Coordinates | 39.8380° N, 96.0696° W |
| ZIP code | 66538 |
| Official website | Seneca-Kansas.us |
| Census code (GEOID) | 2063950 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Seneca
- St. Benedict4.2 mi NW
- Baileyville6.6 mi W
- Oneida7.2 mi E
- Kelly7.9 mi SE
- Centralia8.5 mi S
- Bern10.0 mi NE
- Axtell10.2 mi W
- Corning12.7 mi S
- Vermillion13.2 mi SW
- Du Bois, NE13.7 mi N
- Goff14.1 mi SE
- Sabetha15.5 mi E
Straight-line distance between town centers.
Frequently asked questions about Seneca
What county is Seneca in?
Seneca is in Nemaha County, Kansas.
What is the population of Seneca, KS?
2,139 people lived in Seneca at the 2020 Census.
What is the ZIP code of Seneca, KS?
The ZIP code of Seneca is 66538.
What is the elevation of Seneca?
1,138 feet (347 m) above sea level.
What towns are near Seneca?
St. Benedict (4.2 mi), Baileyville (6.6 mi), Oneida (7.2 mi), Kelly (7.9 mi), Centralia (8.5 mi).
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