Riley is located in St. Clair County, Michigan. Riley has a 2025 population of 3,181 . Riley is currently declining at a rate of -0.22% annually and its population has decreased by -0.53% since the most recent census, which recorded a population of 3,198 in 2020.
The average household income in Riley is $116,485 with a poverty rate of 4.02%. The median age in Riley is 44.8 years: 45.4 years for males, and 44.3 years for females. For every 100 females there are 105.8 males.
Data after 2023 is projected based on recent change
The racial composition of Riley includes 90.62% White, 4.61% Asian, and smaller percentages for Black or African American, other race and multiracial populations.
White (90.62%)
Asian (4.61%)
Two or more races (3.9%)
Black or African American (0.47%)
Other race (0.41%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 2,908 | 90.62% |
| Asian | 148 | 4.61% |
| Two or more races | 125 | 3.9% |
| Black or African American | 15 | 0.47% |
| Other race | 13 | 0.41% |
Married
Widowed
Divorced
Separated
Never Married
Riley's average per capita income is $61,014. Household income levels show a median of $103,026. The poverty rate stands at 4.02%.
Name | Median | Mean |
|---|---|---|
| Married Families | $133,438 | - |
| Families | $119,583 | $131,670 |
| Households | $103,026 | $116,485 |
| Non Families | $47,292 | $69,487 |
Average Income
Median Household Income
Poverty Rate