Seneca Flag

Seneca

County:
Nemaha County
County Seat:
Yes
Area (mi²):
1.788
State:
Kansas

Seneca is a city located in Nemaha County, Kansas. Seneca has a 2025 population of 2,143. It is also the county seat of Nemaha CountySeneca is currently growing at a rate of 0.05% annually and its population has increased by 0.14% since the most recent census, which recorded a population of 2,140 in 2020.

The average household income in Seneca is $88,715 with a poverty rate of 8.52%The median age in Seneca is 42.9 years: 39 years for males, and 50.3 years for females.

2.1K
Total Population
1,198
Density (mi²)
1 0.05%
Growth

Seneca Population

Demographics

Economics and Income Statistics

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)