
New Haven
- County:
- Franklin County
- County Seat:
- No
- Area (mi²):
- 3.213
- State:
- Missouri
New Haven is a city located in Franklin County, Missouri. New Haven has a 2025 population of 2,367. New Haven is currently declining at a rate of -0.46% annually and its population has decreased by -2.27% since the most recent census, which recorded a population of 2,422 in 2020.
The average household income in New Haven is $81,553 with a poverty rate of 12.52%. The median age in New Haven is 32 years: 30.7 years for males, and 32.9 years for females.