Seneca Flag

Seneca

County:
Newton County
County Seat:
No
Area (mi²):
2.559
State:
Missouri

Seneca is a city located in Newton County, Missouri. Seneca has a 2026 population of 2,316. Seneca is currently growing at a rate of 0.61% annually and its population has increased by 3.44% since the most recent census, which recorded a population of 2,239 in 2020.

2.3K
Total Population
905
Density (mi²)
14 0.61%
Growth

Nearby Cities

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)