Rockville
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 8.462
- State:
- Utah
Rockville is a town located in Washington County, Utah. Rockville has a 2026 population of 223. Rockville is currently declining at a rate of 0% annually and its population has decreased by -1.33% since the most recent census, which recorded a population of 226 in 2020.
The median household income in Rockville is $54,722 with a poverty rate of 0%. The median age in Rockville is 66.7 years: 66.7 years for males, and 66.8 years for females. For every 100 females there are 84.4 males.