Marietta Flag

Marietta

County Seat:
No
Area (mi²):
0.747
State:
Pennsylvania

Marietta is a borough located in Lancaster County, Pennsylvania. Marietta has a 2025 population of 3,177. Marietta is currently growing at a rate of 3.65% annually and its population has increased by 21.31% since the most recent census, which recorded a population of 2,619 in 2020.

The average household income in Marietta is $77,578 with a poverty rate of 8.76%.The median age in Marietta is 45.3 years: 46.3 years for males, and 43.8 years for females.

3.2K
Total Population
4,254
Density (mi²)
112 3.65%
Growth

Marietta Population

Marietta Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Marietta includes 78.95% White, 10.26% other race, 4.17% Black or African American, and smaller percentages for Asian and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White2,23278.95%
Other race29010.26%
Two or more races1575.55%
Black or African American1184.17%
Asian301.06%

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 $46,362. Household income levels show a median of $56,204. The poverty rate stands at 8.76%.

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
Families$71,188$89,078
Married Families$67,426-
Households$56,204$77,578
Non Families$38,015$54,513

$46,362

Average Income

$56,204

Median Household Income

8.76%

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)