Plymouth

County:: Grafton County
County Seat:: No
Area (mi²):: 5.875
State:: New Hampshire

Plymouth is a CDP located in Grafton County, New Hampshire. Plymouth has a 2025 population of 4,421. Plymouth is currently declining at a rate of -0.05% annually but its population has increased by 3.27% since the most recent census, which recorded a population of 4,281 in 2020.

The average household income in Plymouth is $109,307 with a poverty rate of 16.36%.The median age in Plymouth is 23.2 years: 23 years for males, and 23.5 years for females.

Demographics

The racial composition of Plymouth includes 87.59% White, 3.79% Black or African American, and smaller percentages for Asian, other race and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	4,272	87.59%
Two or more races	223	4.57%
Black or African American	185	3.79%
Asian	146	2.99%
Other race	51	1.05%

Plymouth Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Plymouth's average per capita income is $54,696. Household income levels show a median of $77,368. The poverty rate stands at 16.36%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$141,818	-
Families	$109,800	$160,544
Households	$77,368	$109,307
Non Families	$33,370	$49,984

$54,696

Average Income

$77,368

Median Household Income

16.36%

Poverty Rate