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 2026 population of 2,141. It is also the county seat of Nemaha County. Seneca is currently growing at a rate of 0.14% annually but its population has decreased by -0.05% since the most recent census, which recorded a population of 2,142 in 2020.

2.1K
Total Population
1,197
Density (mi²)
3 0.14%
Growth