Kansas · Census place 2063950
Seneca, Kansas
Seneca is a city in Nemaha County, Kansas with an estimated 2,141 residents on July 1, 2024. It is the 110th largest of 193 incorporated places of 1,000+ people in the state.
- Population 2024
- 2,141
- #110 of 193 in Kansas
- Change since 2020
- -0.0%
- -1 people
- Land area
- 1.8 sq mi
- Density
- 1,196 / sq mi
- State median 1,527
Measure from here
Tools and pages that start from Seneca
Seneca population, 2020 to 2024
Seneca lost 1 residents from July 2020 to July 2024, a change of -0.0%. In the latest year it moved by +3.
Seneca covers 1.79 square miles of land, for 1,196 people per square mile of land. The median Kansas place of 5,000+ has 1,527, so Seneca is less dense than the typical town.
What county Seneca is in
All of Seneca's residents live in Nemaha County, which had 10,062 residents in 2024. Seneca holds 21.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.
ZIP codes in Seneca
1 ZIP Code Tabulation Area (ZCTA) overlaps Seneca by at least 10% of the ZCTA's or the city's land: 66538. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.
Where Seneca is
The Census internal point of Seneca is at 39.838000, -96.069600. Topeka, the capital, is 58.5 miles SSE in a straight line. The nearest larger place is Sabetha, KS (2,476 people), 15.5 miles away. The nearest city of 100,000 or more is Topeka, KS, 59.0 miles away.
Internal point
- Decimal
- 39.838000, -96.069600
- DMS
- 39°50'16.80"N 96°04'10.56"W
- UTM
- 14N 750748.0E 4413886.8N
- Geohash
- 9z5dtuk30
- Plus code
- 86F5RWQJ+65
Daylight in Seneca
At 39.84° N, Seneca gets about 15 h 00 min of daylight around the June solstice and 9 h 21 min around the December solstice, a swing of 5 h 39 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.
Places near Seneca
The eight nearest incorporated places of 1,000+ in Kansas, measured between internal points. The closest is Sabetha, 15.5 miles away, with 2,476 people.
Questions people ask
What is the population of Seneca, KS?
2,141 on July 1, 2024, in the Census Vintage 2024 estimates. That is down 1 (0.0%) from 2,142 in July 2020.
What county is Seneca in?
Nemaha County. All of its residents live in that county.
What ZIP codes cover Seneca?
1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 66538.
How far is Seneca from Topeka?
58.5 miles (94.2 km) in a straight line, heading SSE from Seneca.
What is the nearest larger city to Seneca?
Sabetha, KS, with 2,476 residents, 15.5 miles away between internal points.
Sources and data as of
Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.
- 01Census Vintage 2024 subcounty population estimates
- 02Census 2024 Gazetteer, places
- 03Census 2020 ZCTA to place relationship file
- 04Census 2024 cartographic boundary file, counties (1:5,000,000)
How every number is computed: methodology. Spotted a wrong figure? Report an error.