Plymouth, NH

Town in NH, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

6,601

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

24.6

years ∙ half population younger than 24.6, half older

Diversity Index

23%

chance two random people differ in race and ethnicity

Nativity

3.7%

foreign-born population

96.3%Native

3.7% Foreign-born

Geographic Context

Location, size, and surroundings

About

Plymouth is a town in Grafton County, New Hampshire, United States.

Location

Town in NH, US

Co-ordinates

DEC43.743912° N, 71.726744° W

DMS43° 44′ 38.08″ N, 71° 43′ 36.28″ W

Population Density & area

234.9/sq mi (90.67/km²)

Total Area

28.7 sq mi (74.2 km²)

Land Area

28.1 sq mi (72.8 km²) · 98.1%

Water Area

0.6 sq mi (1.4 km²) · 1.9%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

53.5% male

Male 53.5%

Female 46.5%

males per 100 females

Plymouth 114.9

New Hampshire 99.7

United States 98

Nativity

3.7%

foreign-born population

96.3%Native

3.7% Foreign-born

% Foreign-born

Plymouth 3.7%

New Hampshire 6.1%

United States 14.1%

Age Distribution

How the population is spread across age groups

Median Age

24.6

years ∙ half population younger than 24.6, half older

Plymouth

24.6

New Hampshire

43.3

United States

38.9

Dependency ratio

34.3

dependents per 100 working-age adults

Plymouth 34.3

New Hampshire 62.3

United States 64.4

AGE DISTRIBUTION

Distribution of age group

Median age

	Plymouth	New Hampshire	United States
Age Group
Children (Under 18)	13.6%	18.2%	22%
Working age (18-64)	74.4%	61.7%	60.8%
Senior (65+)	12%	20.1%	17.2%
Dependency ratio
Total dependency ratio	34.3	62.3	64.4
Child dependency ratio	18.2	29.6	36.1
Old-age dependency ratio	16.1	32.7	28.3

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

87.5%

Black

Asian

1.1%

Hispanic

3.2%

Other

5.2%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

23%

chance two random people differ in race and ethnicity

Plymouth 23%

New Hampshire 24%

United States 61.4%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Plymouth population

	Plymouth	New Hampshire	United States
Hispanic or Latino	3.2%	4.7%	19.3%
Mexican	0.7%	0.8%	11.3%
Puerto Rican	0.7%	1.4%	1.8%
Cuban	0%	0.1%	0.8%
Other Hispanic / Latino	1.8%	2.3%	5.5%
Not Hispanic or Latino	96.8%	95.3%	80.7%
One race	91.5%	91.3%	76.4%
White	87.5%	86.9%	57.4%
Black or African American	3%	1.3%	11.9%
American Indian and Alaska Native	0%	0.1%	0.5%
Asian	1.1%	2.6%	5.9%
Native Hawaiian and Other Pacific Islander	0%	0%	0.2%
Some Other Race	0%	0.4%	0.6%
Two or more races (Multiracial)	5.3%	4%	4.3%

Household & Families Composition

Household size, type, and family structure

Household structure

51.8% family

Family 51.8%

Non family 48.2%

% family households

Plymouth 51.8%

New Hampshire 64.5%

United States 64.2%

Average household size

2.58

persons per household

Plymouth

2.58

New Hampshire

2.44

United States

2.53

Household & Family COMPOSITION

Households

Percentage of Plymouth population

	Plymouth	New Hampshire	United States
Total households	1,930	555,822	129,227,496
Average houshold size	2.58	2.44	2.53
Family households	1,000	358,314	82,990,528
Average family size	3.18	2.97	3.14
Married couple family	723	286,197	60,637,388
Other families	277	72,117	22,353,140
Male householder	93	24,853	6,572,819
Female householder	184	47,264	15,780,321
Non-family households	930	197,508	46,236,968
One-person households	660	152,350	37,140,836
Male householder	328	68,271	16,871,444
Senior (65+) living alone	83	25,581	5,225,110
Female householder	332	84,079	20,269,392
Senior (65+) living alone	152	46,808	10,089,070
Other living arrangements	270	45,158	9,096,132

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

2,326

housing units

Plymouth 2,326

New Hampshire 648,472

United States 143,775,355

Occupancy status

83% occupied

Occupied 83%

Vacant 17%

vacancy rate

Plymouth 17%

New Hampshire 14.3%

United States 10.1%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

54.8%

Single family houses

54.8%

Apartments in multi-unit structures

39.2%

Mobile homes

5.9%

Boat, RV, van, etc

Median Year Built

1979

Half of houses were built before 1979, and half after.

Historic ∙ 1939 or earlier

21.6%

Postwar & mid-century ∙ 1940 - 1969

14.8%

Late 20th century ∙ 1970 - 1999

43.3%

Modern ∙ 2000 or later

20.4%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Plymouth	New Hampshire	United States
Rooms per unit
Median rooms	5	5.6	5.5
1–3 rooms	23.5%	13.4%	15.1%
4–6 rooms	45.6%	51.4%	51.6%
7+ rooms	30.9%	35.2%	33.4%
Bedrooms
No bedroom / studio	1.3%	1.7%	2.9%
1 bedroom	18.1%	11.2%	10.9%
2 bedrooms	36.1%	29.9%	25%
3 bedrooms	21.9%	37.7%	38.7%
4+ bedrooms	22.6%	19.5%	22.4%
At a glance
Median year built	1979	1980	1981
Total housing units	2,326	648,472	143,775,355

Occupancy Profile

Who is inside and how they use it

Homeownership

56.3% owners

Renter-occupied 43.7%

Owner-occupied 56.3%

homeownership rate

Plymouth 56.3%

New Hampshire 72.8%

United States 65.2%

Average household size

2.65

Owner-occupied

2.5

Renter-occupied

owner-occupied average size

Plymouth 2.65

New Hampshire 2.58

United States 2.64

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Plymouth	New Hampshire	United States
Total occupied units	1,930	555,822	129,227,496
Year moved in
2020 or later	25.4%	21.2%	24.8%
2010 to 2019	43.3%	39.6%	39.6%
2000 to 2009	13.7%	17.5%	16.4%
1999 or earlier	17.6%	21.7%	19.1%
Occupants per room
1.00 or fewer	99.5%	98.6%	96.6%
1.01 to 1.50	0.1%	0.9%	2.2%
1.51 or more	0.4%	0.5%	1.2%
Vehicles availability
No vehicles	14.5%	4.6%	8.4%
1 vehicle	33.8%	31.2%	33.1%
2 vehicles	24.7%	40.8%	36.6%
3 or more vehicles	27%	23.4%	21.9%
House heating fuel used
Gas	37.6%	40.6%	51.4%
Electricity	12.7%	11.1%	41.3%
Solar	0%	0.3%	0.3%
Fuel oil, kerosene etc	45.3%	39.5%	3.9%
All other fuels	4.4%	7.7%	2%
No fuel used	0%	0.8%	1.2%
Selected characteristics
Lacking complete plumbing	0.4%	0.5%	0.4%
Lacking complete kitchen	0.4%	0.7%	0.8%
No telephone service available	0%	0.6%	0.9%

Housing Value

What owner-occupied units are worth

Median home value

$292,400

owner-occupied units

Median value(USD)

Plymouth

$292,400

New Hampshire

$402,500

United States

$332,700

Housing Cost Burden

7.3%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

7.3%

Owners without a mortgage

27.8%

Renters

33.7%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Plymouth	New Hampshire	United States
Property value
Median Value	$292,400	$402,500	$332,700
Under $100,000	10%	5.8%	11.4%
$100,000 - $200,000	5.2%	7.6%	15.8%
$200,000 - $300,000	38.4%	16.1%	17.8%
$300,000 - $500,000	34%	38.7%	26.9%
$500,000 - $1,000,000	11.5%	27.6%	20.9%
$1,000,000 and more	0.9%	4.1%	7.1%
Owner-occupied households
With a mortgage	50.7%	62.2%	60.6%
Without a mortgage	49.3%	37.8%	39.4%
Median monthly owner costs
With a mortgage	$2,175	$2,367	$1,963
Without a mortgage	$968	$995	$638
Gross rent
Median rent	$1,108	$1,491	$1,413

Education Profile

How educated is the community and how education pays off

Adults with a college degree

54%

of adults 25+ with a bachelor's degree or higher

Plymouth 54%

New Hampshire 40.6%

United States 35.7%

Adults without a high school diploma

5.2%

of adults (25+) without a high school diploma

Plymouth 5.2%

New Hampshire 5.6%

United States 10.4%

School Enrollment

Who is enrolled in school and at what level

School enrollment

3,047

population (age 3+) enrolled in school

Nursery / Preschool

0.7%

K–12

26.3%

College / Undergraduate

64.2%

Graduate / Professional

8.8%

College-going rate (18-24 yr olds)

81.5%

of 18-24-year-olds in college or graduate school

Plymouth

81.5%

New Hampshire

42.6%

United States

40.9%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Plymouth	New Hampshire	United States
Total enrolled (age 3+)	3,047	291,492	80,089,790
Nursery / preschool	0.7%	5.9%	5.7%
K–12	26.3%	65.5%	67.6%
Kindergarten	0.1%	4.5%	5%
Elementary: Grades 1–4	5.9%	18.4%	19.8%
Elementary: Grades 5–8	8.8%	20.3%	21%
High School: Grades 9–12	11.5%	22.3%	21.7%
College or graduate school	73%	28.6%	26.7%
College, undergraduate	64.2%	22.4%	21%
Graduate, professional school	8.8%	6.2%	5.8%
College-going rate · 18-24 yr olds	81.5%	42.6%	40.9%
School type
Public school	78.6%	77%	82%
Private school	21.4%	23%	18%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

3,271

population 25 years and over

Total adults (25+)

Less than 9th grade

0.4%

9th-12th, no diploma

4.8%

HS graduate

20.1%

Some college no degree

16.8%

Associates degree

3.9%

Bachelors degree

29.8%

Graduate or professional degree

24.2%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

57.1% · 42.9%

9th-12th, no diploma

46.8% · 53.2%

HS graduate

55.2% · 44.8%

Some college no degree

40.5% · 59.5%

Associates degree

62.5% · 37.5%

Bachelors degree

49% · 51%

Graduate or professional degree

48.7% · 51.3%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Plymouth	New Hampshire	United States
Population (25+)	3,271	1,019,229	230,807,303
Less than 9th grade	0.4%	1.8%	4.7%
9th–12th, no diploma	4.8%	3.8%	5.7%
High school diploma or GED	20.1%	26.8%	26%
Some college, no degree	16.8%	17.2%	19.1%
Associate's degree	3.9%	9.8%	8.8%
Bachelor's degree or higher	54%	40.6%	35.7%
Bachelor's degree	29.8%	24.5%	21.6%
Graduate or professional	24.2%	16.1%	14.1%
High School or higher	94.8%	94.4%	89.6%

Earnings by education level

percentage as applicable

Median Earnings

$52,753

Median earnings for adults 25+, by level

Less than HS graduate

$30,151

HS graduate

$43,853

Some college or associates

$37,330

Bachelors degree

$55,855

Graduate or professional degree

$71,313

Poverty Rate

6.2%

for ages 25+, with bachelors degree or higher

Less than HS graduate

47.6%

HS graduate

18.9%

Some college or associates

16.8%

Bachelors degree or higher

6.2%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Plymouth	New Hampshire	United States
Median earnings
Population 25+, with earnings	$52,753	$60,332	$52,696
Less than high school graduate	$30,151	$40,457	$32,485
High school graduate (includes equivalency)	$43,853	$48,323	$40,153
Some college or associate's degree	$37,330	$52,211	$47,260
Bachelor's degree	$55,855	$72,069	$70,044
Graduate or professional degree	$71,313	$88,483	$90,720
Poverty rates
Less than high school graduate	47.6%	20.6%	24.2%
High school graduate (includes equivalency)	18.9%	9.6%	14.4%
Some college or associate's degree	16.8%	6.5%	9.8%
Bachelor's degree or higher	6.2%	3.1%	4.5%

Insights for Plymouth, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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