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, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Other race

Two or more races

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

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%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

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