Mariemont

County:: Hamilton County
County Seat:: No
Area (mi²):: 0.894
State:: Ohio

Mariemont is a village located in Hamilton County, Ohio. Mariemont has a 2025 population of 3,391. Mariemont is currently declining at a rate of -0.73% annually and its population has decreased by -3.53% since the most recent census, which recorded a population of 3,515 in 2020.

The average household income in Mariemont is $220,886 with a poverty rate of 1.4%.The median age in Mariemont is 39.1 years: 36.9 years for males, and 39.8 years for females.

Demographics

The racial composition of Mariemont includes 96.64% White, and smaller percentages for Two or more races, Black or African American, other race and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	3,360	96.64%
Two or more races	58	1.67%
Black or African American	49	1.41%
Other race	10	0.29%

Mariemont Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mariemont's average per capita income is $95,344. Household income levels show a median of $153,507. The poverty rate stands at 1.4%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$206,071	-
Families	$199,545	$296,044
Households	$153,507	$220,886
Non Families	$51,875	$74,903

$95,344

Average Income

$153,507

Median Household Income

1.4%

Poverty Rate