Plymouth, New Hampshire Demographics & Population 2026
During the 2020–2024 ACS period, Plymouth, New Hampshire had a total population of 4,969, the 27th largest community in New Hampshire, with a median household income of $89,500, which is 10% lower than the state average. The poverty rate is 17.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- 63.7% of adults hold a bachelor's degree or higher — top 10% in New Hampshire.
Plymouth Quick Facts
How Plymouth Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 4,877 | 4,969 | +1.9% |
| Median household income | $77,368 | $89,500 | +15.7% |
| Median home value | $274,200 | $294,400 | +7.4% |
How Plymouth Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 24 | National average: 61
Education
Educational Attainment (Adults 25+)
Plymouth Rankings in New Hampshire
Explore New Hampshire Rankings
Other Cities in Grafton County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Lebanon | 14,999 | $98,147 | 7.0% | $385,400 |
| Hanover | 8,479 | $153,281 | 8.0% | $842,600 |
| Littleton | 4,114 | $53,082 | 15.5% | $230,500 |
| Bristol | 2,098 | $73,993 | 9.5% | $237,400 |
| Enfield | 1,994 | $99,330 | 23.7% | $277,900 |
| Woodsville | 1,422 | $57,946 | 10.3% | $228,000 |
| Ashland | 1,404 | $44,188 | 27.7% | $173,900 |
| Bethlehem | 1,058 | $64,625 | 11.5% | $262,000 |
| Lincoln | 923 | $60,000 | 9.6% | $326,700 |
| Lisbon | 730 | $68,813 | 7.0% | $181,300 |
Cities Similar to Plymouth
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| East Merrimack | 5,081 | $87,311 | $291,500 | 42.0% | 3.4% |
| Newport | 4,758 | $78,174 | $211,200 | 29.8% | 14.8% |
| Suncook | 5,432 | $79,836 | $361,100 | 31.4% | 12.9% |
| Newmarket | 5,679 | $87,196 | $423,500 | 48.9% | 6.9% |
| Pinardville | 4,418 | $79,340 | $286,300 | 37.9% | 10.7% |
Population Overview
Plymouth is a small community located in New Hampshire, within Grafton County. The total population is 4,969. It ranks as the 27th most populous out of 100 Census-designated places in New Hampshire.
Age Demographics
The median age in Plymouth is 22.8 years. This is 47% lower than the state median of 43.3 years. Only 13.3% of residents are under 18, indicating fewer families with children.
Economy, Income & Housing
The median household income in Plymouth is $89,500. This is 10% lower than the state median of $99,031. It is also 11% higher than the national median of $80,734. The poverty rate stands at 17.0%. This is 134% higher than the state poverty rate of 7.2%. The unemployment rate is 7.2%. This is 115% higher than the state rate of 3.4%. The median home value is $294,400. Housing costs are 27% lower than the state median of $402,500. The home-value-to-income ratio is 3.3x. 50.7% of occupied housing units are owner-occupied. This homeownership rate is 30% lower than the state average of 72.8%.
Race & Ethnicity
Plymouth has a predominantly White (non-Hispanic) population, comprising 87.6% of all residents. Black or African American residents account for 4.0%. The Black or African American population is significantly higher than the state average (4.0% vs 1.3%).
Education
63.7% of residents aged 25 and older hold a bachelor's degree or higher. This places Plymouth in the top 10% of all cities in the state for educational attainment. This is 57% higher than the state rate of 40.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.8%. Notably, 30.0% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Plymouth, New Hampshire is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New Hampshire state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 100 Census-designated places in New Hampshire. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Plymouth, New Hampshire?
Plymouth, New Hampshire has a population of 4,969 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Plymouth, NH?
The median household income in Plymouth is $89,500, which is 11% higher than the national median of $80,734.
What is the poverty rate in Plymouth, NH?
The poverty rate in Plymouth is 17.0%. This means approximately 575 residents live below the federal poverty line.
What is the racial makeup of Plymouth, New Hampshire?
Plymouth's population is 87.6% White, 4.0% Black, 3.4% Hispanic/Latino, and 1.3% Asian.
What is the median home value in Plymouth, NH?
The median home value in Plymouth is $294,400. The home-value-to-income ratio is 3.3x.
How educated is Plymouth, New Hampshire?
63.7% of adults (25+) in Plymouth hold a bachelor's degree or higher, and 30.0% hold a graduate or professional degree.