Rochester
- County:
- Oakland County
- County Seat:
- No
- Area (mi²):
- 3.831
- State:
- Michigan
Rochester is a city located in Oakland County, Michigan. Rochester has a 2026 population of 12,978. Rochester is currently growing at a rate of 0.84% annually but its population has decreased by -0.15% since the most recent census, which recorded a population of 12,997 in 2020.