Marietta is a borough located in Lancaster County, Pennsylvania. Marietta has a 2025 population of 2,952 . Marietta is currently declining at a rate of -0.2% annually but its population has increased by 12.71% since the most recent census, which recorded a population of 2,619 in 2020.
The median household income in Marietta is $56,204 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. For every 100 females there are 124.2 males.
Data after 2023 is projected based on recent change
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.
White (78.95%)
Other race (10.26%)
Two or more races (5.55%)
Black or African American (4.17%)
Asian (1.06%)
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% |
Married
Widowed
Divorced
Separated
Never Married
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%.
Name | Median | Mean |
|---|---|---|
| Families | $71,188 | $89,078 |
| Married Families | $67,426 | - |
| Households | $56,204 | $77,578 |
| Non Families | $38,015 | $54,513 |
Average Income
Median Household Income
Poverty Rate