Hart
- County:
- Oceana County
- County Seat:
- Yes
- Area (mi²):
- 1.777
- State:
- Michigan
Hart is a city located in Oceana County, Michigan. Hart has a 2026 population of 2,059. It is also the county seat of Oceana County. Hart is currently declining at a rate of -0.05% annually but its population has increased by 0.15% since the most recent census, which recorded a population of 2,056 in 2020.