Zip code 03237: Gilmanton, New Hampshire

Q: What city is zip code 03237?

03237 is assigned to Gilmanton, New Hampshire. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 03237 in?

03237 is in Belknap County, New Hampshire.

Q: What is the population of 03237?

About 2,575 people live in 03237, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 03237?

The median household income in 03237 is $111,359.

Q: What zip codes are near 03237?

The closest zip codes to 03237 are 03837, 03220, 03249, 03298, 03299.

Residential delivery areaBelknap CountyEastern Time

Population

2,575

Median household income

$111K

U.S. $81K

Median home value

$345K

U.S. $333K

Median rent

—

U.S. $1,413

Median age

43.2

U.S. 38.9

Land area

38 sq mi

68 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 03237

03237 is a small-town zip code in Gilmanton, New Hampshire (Belknap County), covering 38 sq mi of land. About 2,575 people live here, or 68 per square mile. The median resident is 43.2 years old, compared with 38.9 nationally.

The median household earns $111,359 a year, 38% above the national median of $80,734. 5.4% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $345,400, or 3.1 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 99% of occupied homes are lived in by their owners.

36% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 33 minutes each way, and 8% of workers work from home. The most common jobs among working residents are in office and administrative support; management; and construction and repair.

How 03237 compares

Sorted from highest to lowest national percentile

Homeownership rate98.9%
99th
StrengthU.S. 65.2% · NH 72.8%12th of 239 in NH
Housing vacancy21.1%
94th
U.S. 10.1% · NH 14.3%94th of 239 in NH
Government workers24.7%
94th
U.S. 14.5% · NH 13.1%12th of 239 in NH
Broadband access96.5%
89th
StrengthU.S. 91% · NH 92.9%52nd of 239 in NH
Average commute33 min
87th
WeaknessU.S. 26.4 min · NH 26.7 min49th of 234 in NH
Tech workers5.7%
84th
U.S. 3.8% · NH 4.3%34th of 239 in NH
Unemployment rate7.4%
83rd
WeaknessU.S. 5.2% · NH 3.3%18th of 239 in NH
Median household income$111,359
80th
StrengthU.S. $80,734 · NH $99,03172nd of 234 in NH
Median age43.2
78th
U.S. 38.9 · NH 43.3162nd of 239 in NH
Per capita income$52,479
76th
U.S. $44,673 · NH $52,798104th of 239 in NH
Median earnings per worker$59,651
74th
U.S. $49,666 · NH $56,07987th of 239 in NH
Bachelor's degree or higher36.1%
59th
U.S. 35.7% · NH 40.6%136th of 239 in NH
Median home value$345,400
52nd
U.S. $332,700 · NH $402,500147th of 235 in NH
Rent-burdened renters50%
47th
U.S. 51.1% · NH 48.2%93rd of 230 in NH
Veterans5.5%
45th
U.S. 6.2% · NH 7.6%199th of 239 in NH
Residents 65 and older14.8%
37th
U.S. 17.2% · NH 20.1%217th of 239 in NH
Work from home8.2%
23rd
U.S. 15.1% · NH 16.8%206th of 239 in NH
Foreign-born residents2.9%
18th
U.S. 14.1% · NH 6.1%127th of 239 in NH
Poverty rate5.4%
14th
StrengthU.S. 12.5% · NH 7.2%146th of 239 in NH
Residents under 1816.8%
14th
U.S. 22% · NH 18.2%145th of 239 in NH
Uninsured rate2.8%
11th
StrengthU.S. 8.4% · NH 5.3%187th of 239 in NH
Self-employed workers6.2%
11th
U.S. 10% · NH 9.3%205th of 239 in NH
Population density68/sq mi
10th
U.S. 95/sq mi · NH 156/sq mi147th of 239 in NH
Diversity index11.9
5th
U.S. 61.4 · NH 24157th of 239 in NH
Population2,575
4th
U.S. 334,922,499 · NH 1,394,868128th of 239 in NH
Healthcare workers4.7%
3rd
U.S. 9.7% · NH 9.6%219th of 239 in NH
Income inequality (Gini)0.309
1st
StrengthU.S. 0.483 · NH 0.444230th of 239 in NH

Measure	03237	Belknap	NH	U.S.	National percentile	Rank in NH
Homeownership rateStrength	98.9%	80.1%	72.8%	65.2%	99th	12th of 239
Housing vacancy	21.1%	32.5%	14.3%	10.1%	94th	94th of 239
Government workers	24.7%	15.8%	13.1%	14.5%	94th	12th of 239
Broadband accessStrength	96.5%	91.9%	92.9%	91%	89th	52nd of 239
Average commuteWeakness	33 min	25 min	26.7 min	26.4 min	87th	49th of 234
Tech workers	5.7%	3.2%	4.3%	3.8%	84th	34th of 239
Unemployment rateWeakness	7.4%	3.1%	3.3%	5.2%	83rd	18th of 239
Median household incomeStrength	$111,359	$92,783	$99,031	$80,734	80th	72nd of 234
Median age	43.2	48.4	43.3	38.9	78th	162nd of 239
Per capita income	$52,479	$49,037	$52,798	$44,673	76th	104th of 239
Median earnings per worker	$59,651	$52,380	$56,079	$49,666	74th	87th of 239
Bachelor's degree or higher	36.1%	33.6%	40.6%	35.7%	59th	136th of 239
Median home value	$345,400	$374,900	$402,500	$332,700	52nd	147th of 235
Rent-burdened renters	50%	49.8%	48.2%	51.1%	47th	93rd of 230
Veterans	5.5%	9.7%	7.6%	6.2%	45th	199th of 239
Residents 65 and older	14.8%	24%	20.1%	17.2%	37th	217th of 239
Work from home	8.2%	13.5%	16.8%	15.1%	23rd	206th of 239
Foreign-born residents	2.9%	2.8%	6.1%	14.1%	18th	127th of 239
Poverty rateStrength	5.4%	8.5%	7.2%	12.5%	14th	146th of 239
Residents under 18	16.8%	17.3%	18.2%	22%	14th	145th of 239
Uninsured rateStrength	2.8%	5.9%	5.3%	8.4%	11th	187th of 239
Self-employed workers	6.2%	11.7%	9.3%	10%	11th	205th of 239
Population density	68/sq mi	161/sq mi	156/sq mi	95/sq mi	10th	147th of 239
Diversity index	11.9	13.9	24	61.4	5th	157th of 239
Population	2,575	64,659	1,394,868	334,922,499	4th	128th of 239
Healthcare workers	4.7%	8.1%	9.6%	9.7%	3rd	219th of 239
Income inequality (Gini)Strength	0.309	0.449	0.444	0.483	1st	230th of 239

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

11%

5–17

18–24

17%

25–34

15%

35–44

14%

45–54

18%

55–64

12%

65–74

75+

Median age

43.2

Under 18

16.8%

65 and over

14.8%

Race and ethnicity

White94%
Black0%
Hispanic2%
Asian0%
Native American0%
Pacific Islander0%
Other0%
Multiracial4%

Diversity index

11.9

U.S. 61.4

Foreign-born

2.9%

U.S. 14.1%

Born in state

59.5%

Language spoken at home (households)

English only

96%

Spanish

0.5%

Other Indo-European

Asian / Pacific

Other

Households

Households: 1,097
Average household size: 2.4
Family households: 68.1%
Married couples: 61.3%
Living alone: 25.4%
Veterans (of adults): 5.5%
Male / female: 52% / 48%

Income and poverty

Household income distribution

<$25k

$25–50k

$50–75k

10%

$75–100k

21%

$100–150k

34%

$150–200k

14%

$200k+

11%

Median household income

03237

$111,359

Belknap Co.

$92,783

New Hampshire

$99,031

United States

$80,734

Per capita income

$52,479

U.S. $44,673

Poverty rate

5.4%

U.S. 12.5%

Households earning $150K+

24.9%

U.S. 23%

Income inequality (Gini)

0.309

U.S. 0.483

Housing

Median home value

03237

$345,400

Belknap Co.

$374,900

New Hampshire

$402,500

United States

$332,700

Median gross rent

03237

—

Belknap Co.

$1,167

New Hampshire

$1,491

United States

$1,413

Types of housing

Single-family

98%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 1,390
Owner-occupied: 98.9%
Vacant: 21.1%
Median year built: 1978
Median rooms: 5.5
Renters paying 30%+ of income: 50%
Renters paying 50%+ of income: 0%
Home value to income: 3.1× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

86%

Carpooled

Transit

Walked

Bicycle

Worked from home

Other

Commute time (one way)

<10 min

10–19

12%

20–29

34%

30–44

23%

45–59

18%

60+

11%

Average commute

33 min

U.S. 26.4 min

Unemployment

7.4%

U.S. 5.2%

In labor force

77.6%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Office and admin

15%

Management

14%

Construction and repair

12%

Engineering and science

Production

Sales

Legal and social services

Computer and math

Transportation and moving

Business and finance

Education

Healthcare

Cleaning and personal care

Food service

Police and fire

Arts, media and sports

0.5%

Farming, fishing and forestry

Industries

Education

12%

Public administration

10%

Finance, insurance and real estate

10%

Manufacturing

Professional and technical services

Health care and social assistance

Retail

Admin, support and management

Construction

Other services

Agriculture and mining

Restaurants and hotels

Information

Transportation, warehousing and utilities

Arts and recreation

Wholesale

Median earnings per worker

$59,651

U.S. $49,666

Self-employed

6.2%

U.S. 10%

Government workers

24.7%

U.S. 14.5%

Nonprofit workers

U.S. 8.8%

Median earnings by type of work

Type of work	03237	U.S.
Management, business, science and arts	$70,133	$74,888
Service	$4,801	$26,804
Sales and office	$44,228	$40,476
Construction and maintenance	$71,420	$49,199
Production and transportation	$59,107	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

24%

Some college

26%

Associate's

11%

Bachelor's

20%

Graduate

16%

High school graduate or higher: 97.8%
Bachelor's degree or higher: 36.1%
Graduate or professional degree: 16.2%
Households with broadband: 96.5%
Cable, fiber or DSL: 90.5%
No internet access: 2%
Without health insurance: 2.8%
Limited-English households: 0%

Geography

City (USPS): Gilmanton
State: New Hampshire
County: Belknap County
Center point: 43.4316° N, 71.3877° W
Land area: 38 sq mi
Water area: 1 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Zip codes near 03237

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
03837	Gilmanton Iron Works, NH	2.7 mi	1,451	$119,712	$409,600
03220	Belmont, NH	5.6 mi	7,393	$68,242	$316,200
03249	Gilford, NH	6.1 mi	7,830	$116,635	$456,500
03298	Tilton, NH · PO box	7.1 mi	—	—	—
03299	Tilton, NH · PO box	7.1 mi	—	—	—
03810	Alton Bay, NH	7.3 mi	2,314	$148,261	$569,200
03307	Loudon, NH	7.4 mi	5,724	$107,226	$365,400
03252	Lochmere, NH · PO box	7.9 mi	—	—	—
03289	Winnisquam, NH · PO box	8 mi	—	—	—
03218	Barnstead, NH	8.7 mi	1,160	$112,500	$346,900
03225	Center Barnstead, NH	8.7 mi	3,834	$111,660	$368,400
03276	Tilton, NH	9.5 mi	9,015	$82,425	$272,700

Zip codes like 03237 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 03237

What city is zip code 03237?

03237 is assigned to Gilmanton, New Hampshire. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 03237 in?

03237 is in Belknap County, New Hampshire.

What is the population of 03237?

About 2,575 people live in 03237, according to the Census Bureau's American Community Survey.

What time zone is 03237 in?

03237 is in Eastern Time.

What is the median household income in 03237?

The median household income in 03237 is $111,359.

What zip codes are near 03237?

The closest zip codes to 03237 are 03837, 03220, 03249, 03298, 03299.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 03237, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.