
Fennville
- County:
- Allegan County
- County Seat:
- No
- Area (mi²):
- 1.091
- State:
- Michigan
Fennville is a city located in Allegan County, Michigan. Fennville has a 2025 population of 1,736. Fennville is currently declining at a rate of -0.06% annually and its population has decreased by -0.4% since the most recent census, which recorded a population of 1,743 in 2020.
The average household income in Fennville is $103,137 with a poverty rate of 24.26%. The median age in Fennville is 26.9 years: 26.6 years for males, and 27.2 years for females.