Riverdale is a CDP located in Gratiot County, Michigan. Riverdale has a 2026 population of 322. Riverdale is currently growing at a rate of 6.62% 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 Riverdale is 39 years: 42.1 years for males, and 35 years for females. For every 100 females there are 87.8 males.
Data after 2023 is projected based on recent change
Overall: 39 years
Female: 35 years
Male: 42.1 years
There are 151 adults, (31 of whom are seniors) in Riverdale.
Female: 115 (53.2%)
Male: 101 (46.8%)
The racial composition of Riverdale includes 94.44% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 204 | 94.44% |
| Two or more races | 12 | 5.56% |