St. Mary's is a CDP located in Clear Creek County, Colorado. St. Mary's has a 2025 population of 214 . St. Mary's is currently declining at a rate of -2.28% annually and its population has decreased by -48.56% since the most recent census, which recorded a population of 416 in 2020.
The average household income in St. Mary's is $72,751 with a poverty rate of 0%. The median age in St. Mary's is 31.8 years: 25.5 years for males, and 0 years for females. For every 100 females there are 306.3 males.
Data after 2023 is projected based on recent change
The racial composition of St. Mary's includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 130 | 100% |
Married
Widowed
Divorced
Separated
Never Married
St. Mary's' average per capita income is $0. Household income levels show a median of $78,854. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Households | $78,854 | $72,751 |
| Families | - | - |
| Married Families | - | - |
| Non Families | - | $58,196 |
Average Income
Median Household Income
Poverty Rate