Marietta

County:: Lancaster County
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.

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)
White	2,232	78.95%
Other race	290	10.26%
Two or more races	157	5.55%
Black or African American	118	4.17%
Asian	30	1.06%

Marietta Marital Status

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