Marlboro is a CDP located in Columbiana County, Ohio. Marlboro has a 2025 population of 304 . Marlboro is currently growing at a rate of 7.04% annually and its population has increased by 2.7% since the most recent census, which recorded a population of 296 in 2020.
The average household income in Marlboro is $91,330 with a poverty rate of 3.32%. The median age in Marlboro is 63.2 years: 51.9 years for males, and 63.6 years for females. For every 100 females there are 108.9 males.
Data after 2023 is projected based on recent change
The racial composition of Marlboro includes 98.1% White, and smaller percentages for Two or more races and multiracial populations.
White (98.1%)
Two or more races (1.9%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 207 | 98.1% |
| Two or more races | 4 | 1.9% |
Married
Widowed
Divorced
Separated
Never Married
Marlboro's average per capita income is $49,205. Household income levels show a median of $74,063. The poverty rate stands at 3.32%.
Name | Median | Mean |
|---|---|---|
| Families | $74,375 | $98,181 |
| Married Families | $74,375 | - |
| Households | $74,063 | $91,330 |
| Non Families | - | $71,346 |
Average Income
Median Household Income
Poverty Rate