New Haven
- County:
- Allen County
- County Seat:
- No
- Area (mi²):
- 13.359
- State:
- Indiana
New Haven is a city located in Allen County, Indiana. New Haven has a 2026 population of 16,200. New Haven is currently growing at a rate of 1.1% annually and its population has increased by 3.61% since the most recent census, which recorded a population of 15,635 in 2020.