St. Martin is a CDP located in Brown County, Ohio. St. Martin has a 2025 population of 169 . St. Martin is currently growing at a rate of 6.96% annually and its population has increased by 3.05% since the most recent census, which recorded a population of 164 in 2020.
The average household income in St. Martin is $83,741 with a poverty rate of 7.09%. The median age in St. Martin is 55.4 years: 60.9 years for males, and 49.7 years for females. For every 100 females there are 70.5 males.
Data after 2023 is projected based on recent change
The racial composition of St. Martin includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 133 | 100% |
Married
Widowed
Divorced
Separated
Never Married
St. Martin's average per capita income is $42,500. Household income levels show a median of $0. The poverty rate stands at 7.09%.
Name | Median | Mean |
|---|---|---|
| Households | - | $83,741 |
| Families | - | $106,302 |
| Married Families | - | - |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate