Seneca, Kansas

Seneca, Kansas
Post Office in Seneca (2021)
Location within Nemaha County and Kansas
KDOT map of Nemaha County (legend)
Coordinates: 39°50′17″N 96°04′11″W / 39.83806°N 96.06972°W / 39.83806; -96.06972
CountryUnited States
StateKansas
CountyNemaha
Founded1857
Incorporated1870
Named afterSeneca County, Ohio
Area
  Total
1.67 sq mi (4.32 km2)
  Land1.67 sq mi (4.32 km2)
  Water0.00 sq mi (0.00 km2)
Elevation
1,152 ft (351 m)
Population
 (2020)
  Total
2,139
  Density1,300/sq mi (500/km2)
Time zoneUTC-6 (CST)
  Summer (DST)UTC-5 (CDT)
ZIP code
66538
Area code785
FIPS code20-63950
GNIS ID485651
Websitesenecakansas.com

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.