Rockvale is a CDP located in Carbon County, Montana. Rockvale has a 2026 population of 508. Rockvale is currently growing at a rate of 6.5% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The median age in Rockvale is 55.8 years: 54.9 years for males, and 55.9 years for females. For every 100 females there are 89.2 males.
Data after 2023 is projected based on recent change
Overall: 55.8 years
Female: 55.9 years
Male: 54.9 years
There are 279 adults, (169 of whom are seniors) in Rockvale.
Female: 185 (52.9%)
Male: 165 (47.1%)
The racial composition of Rockvale includes 95.14% White, 4.86% other race, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 333 | 95.14% |
| Other race | 17 | 4.86% |