Plymouth is home to 5,770 people in Pennsylvania. 10% of adults hold a bachelor's degree, below the 36% national rate. That trails the Pennsylvania median by roughly 50%. Home values have risen by half since 2000, reaching $92,500. Owners hold 49% of the housing stock. The poverty rate is 24.1%, above the 12.5% national rate.
At a glance
Lower income
median household income $39,167, below the US median
US median: $82,259
Mid-age
median age 38.1
US median: 38.9
Less educated
10% hold a bachelor's degree
US average: 36%
More affordable
home values down 12%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Plymouth
What changed most since 1990
Poverty rate13.8% → 24.1%(+10.3 pts)US over the same years: −0.8 pts
Population7,134 → 5,770(−19%)US over the same years: +35%
Homes owned by their occupants57.5% → 48.6%(−9.0 pts)US over the same years: +0.9 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)16.9%(52)
US avg: 26.4%
Gulf War (1990s)11.4%(35)
US avg: 24.3%
Vietnam era47.2%(145)
US avg: 33.1%
Korean War7.8%(24)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 307 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Plymouth, decade by decade
Plymouth population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
7,134
$44,298
$91,683
6.9%
2.9
2000
6,507
$49,875
$105,109
10.4%
5.2
2010
5,951
$43,117
$118,826
11.1%
22.2
2020
5,763
$48,290
$82,055
11.6%
45.6
2024
5,770
$39,167
$92,500
9.8%
51.9
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
