Marietta Flag

Marietta

County Seat:
Yes
Area (mi²):
8.429
State:
Ohio

Marietta is a city located in Washington County, Ohio. Marietta has a 2025 population of 12,913. It is also the county seat of Washington County. Marietta is currently declining at a rate of -0.68% annually and its population has decreased by -3.31% since the most recent census, which recorded a population of 13,355 in 2020.

The average household income in Marietta is $79,856 with a poverty rate of 19%.The median age in Marietta is 39.3 years: 38.5 years for males, and 39.8 years for females.

12.9K
Total Population
1,532
Density (mi²)
-88 -0.68%
Growth

Marietta Population

Marietta Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Marietta includes 94.12% White, and smaller percentages for Two or more races, Black or African American, Asian, other race, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White12,50194.12%
Two or more races2902.18%
Black or African American2171.63%
Asian1521.14%
Other race960.72%
Native American260.2%

Marietta Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Marietta's average per capita income is $37,842. Household income levels show a median of $45,986. The poverty rate stands at 19%.

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$90,697-
Families$68,750$108,363
Households$45,986$79,856
Non Families$33,294$47,988

$37,842

Average Income

$45,986

Median Household Income

19%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)