Overview
          6,645
                  Total Population
                32.0
                  Median age
                47.12%
                  Female population %
                112.2:100
                  Gender ratio (M:F)
                15-19 years
                  Largest age group
                40.1
                  Total dependency ratio
                White
                  Largest racial group
                272
                  Hispanic population
                Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Plymouth town's population is young compared to the rest of the country:
- The median age in Plymouth town is 32.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
 - Plymouth town's population under 18 was 15.55%, compared to the 22.51% nationwide.
 - Plymouth town's elderly or the senior population (over 65 age) was 15.95% as compared to 16.04% nationwide.
 - Of the total population in Plymouth town, 12.66% were under the age of 15, 33.27% aged 15 to 29, 38.12% aged 30 to 64, 14.39% aged 65 to 84, and 1.57% were 85 years of age and older.
 
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Gender
There are 383 less females than males in Plymouth town:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 47.12% females and 52.88% males in Plymouth, New Hampshire.
 - The Plymouth, New Hampshire gender ratio is 112.2:100 i.e. 112.2 men to 100 women (1.122).
 - For male population, the largest age group is 20-24 years with a population of 600.
 - For the female population, the largest age group is 15-19 years with a population of 709.
 
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Race / Ethnicity
Plymouth town's population has become increasingly diverse:
- Racial distribution of Plymouth town population: 89.50% are White, 3.01% are Black or African American, 2.60% are Asian, 0.35% are some other race and 4.54% are multiracial.
 - Plymouth town's racial breakdown clearly shows that there is an absolute majority of White population in the town.
 - By ethnicity, 272 is Hispanic or Latino (of any race), and 6,373 (95.91% of the total population) is Non-Hispanic.
 - The largest racial group in Plymouth town is White with a population of 5,947 (89.50% of the total population).
 
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Year by year
Plymouth town's population has already reached its peak and is showing a trend of decline:
- The peak population was 7,019 in the year 2012
 - From 2000 to 2010, Plymouth town's population increased by 1,092 (18.52%), as compared to the national growth of 9.63%.
 - From 2010 to 2020, Plymouth town's population decreased by 292 (4.18%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
 - Between the year 2000 and 2022, Plymouth town's population was lowest in year 2000 at 5,897.
 
Read more about Plymouth, New Hampshire population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
 - U.S. Census Bureau Population Estimates Population Estimates Program (PEP)