Rockville
- County:
- Montgomery County
- County Seat:
- Yes
- Area (mi²):
- 13.567
- State:
- Maryland
Rockville is a city located in Montgomery County, Maryland. Rockville has a 2026 population of 68,417. It is also the county seat of Montgomery County. Rockville is currently growing at a rate of 0.66% annually and its population has increased by 1.6% since the most recent census, which recorded a population of 67,337 in 2020.