Plymouth is located in Luzerne County, Pennsylvania. Plymouth has a 2025 population of 18,833 . Plymouth is currently growing at a rate of 0.91% annually and its population has increased by 3.22% since the most recent census, which recorded a population of 18,246 in 2020.
The average household income in Plymouth is $140,048 with a poverty rate of 4.09%. The median age in Plymouth is 41.6 years: 39.5 years for males, and 43.7 years for females. For every 100 females there are 95.1 males.
Data after 2023 is projected based on recent change
The racial composition of Plymouth includes 76.35% White, 7.26% Black or African American, 5.81% Asian, and smaller percentages for other race and multiracial populations.
White (76.35%)
Two or more races (8.69%)
Black or African American (7.26%)
Asian (5.81%)
Other race (1.89%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 13,984 | 76.35% |
| Two or more races | 1,591 | 8.69% |
| Black or African American | 1,330 | 7.26% |
| Asian | 1,064 | 5.81% |
| Other race | 347 | 1.89% |
Married
Widowed
Divorced
Separated
Never Married
Plymouth's average per capita income is $71,113. Household income levels show a median of $114,798. The poverty rate stands at 4.09%.
Name | Median | Mean |
|---|---|---|
| Married Families | $161,231 | - |
| Families | $149,759 | $171,378 |
| Households | $114,798 | $140,048 |
| Non Families | $75,385 | $86,650 |
Average Income
Median Household Income
Poverty Rate