
Buchanan
- County:
- Berrien County
- County Seat:
- No
- Area (mi²):
- 2.522
- State:
- Michigan
Buchanan is a city located in Berrien County, Michigan. Buchanan has a 2025 population of 4,119. Buchanan is currently declining at a rate of -0.87% annually and its population has decreased by -4.19% since the most recent census, which recorded a population of 4,299 in 2020.
The average household income in Buchanan is $62,132 with a poverty rate of 6.67%. The median age in Buchanan is 32.9 years: 33.5 years for males, and 32.3 years for females.