St. Clairsville

County:: Belmont County
County Seat:: Yes
Area (mi²):: 2.422
State:: Ohio

St. Clairsville is a city located in Belmont County, Ohio. St. Clairsville has a 2025 population of 4,902. It is also the county seat of Belmont County. St. Clairsville is currently declining at a rate of -0.71% annually and its population has decreased by -3.48% since the most recent census, which recorded a population of 5,079 in 2020.

The average household income in St. Clairsville is $93,039 with a poverty rate of 8.29%. The median age in St. Clairsville is 48 years: 34.7 years for males, and 58.5 years for females.

Demographics

The racial composition of St. Clairsville includes 87.05% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	4,390	87.05%
Two or more races	426	8.45%
Other race	107	2.12%
Black or African American	100	1.98%
Asian	20	0.4%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

St. Clairsville Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Clairsville's average per capita income is $43,281. Household income levels show a median of $73,534. The poverty rate stands at 8.29%.

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	$114,279	-
Families	$106,129	$119,157
Households	$73,534	$93,039
Non Families	$42,500	$50,279

$43,281

Average Income

$73,534

Median Household Income

8.29%

Poverty Rate