Zip code 03837: Gilmanton Iron Works, New Hampshire

Q: What city is zip code 03837?

03837 is assigned to Gilmanton Iron Works, New Hampshire. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 03837 in?

03837 is in Belknap County, New Hampshire.

Q: What is the population of 03837?

About 1,451 people live in 03837, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 03837?

The median household income in 03837 is $119,712.

Q: What zip codes are near 03837?

The closest zip codes to 03837 are 03237, 03225, 03810, 03218, 03249.

Residential delivery areaBelknap CountyEastern Time

Population

1,451

Median household income

$120K

U.S. $81K

Median home value

$410K

U.S. $333K

Median rent

—

U.S. $1,413

Median age

55.1

U.S. 38.9

Land area

20 sq mi

73 people/sq mi

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

About 03837

03837 is a small-town zip code in Gilmanton Iron Works, New Hampshire (Belknap County), covering 20 sq mi of land. About 1,451 people live here, or 73 per square mile. The median resident is 55.1 years old, compared with 38.9 nationally.

The median household earns $119,712 a year, 48% above the national median of $80,734. 1.5% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $409,600, or 3.4 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 100% of occupied homes are lived in by their owners.

41% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 32.8 minutes each way, and 9% of workers work from home. The most common jobs among working residents are in healthcare; business and finance; and construction and repair. 19% of them are self-employed (U.S.: 10%).

How 03837 compares

Sorted from highest to lowest national percentile

Homeownership rate99.7%
99th
StrengthU.S. 65.2% · NH 72.8%10th of 239 in NH
Veterans18.8%
99th
U.S. 6.2% · NH 7.6%3rd of 239 in NH
Housing vacancy37%
99th
U.S. 10.1% · NH 14.3%43rd of 239 in NH
Rent-burdened renters100%
99th
WeaknessU.S. 51.1% · NH 48.2%2nd of 230 in NH
Healthcare workers21.4%
99th
U.S. 9.7% · NH 9.6%6th of 239 in NH
Median age55.1
98th
U.S. 38.9 · NH 43.341st of 239 in NH
Self-employed workers19.1%
97th
U.S. 10% · NH 9.3%27th of 239 in NH
Median earnings per worker$70,167
87th
StrengthU.S. $49,666 · NH $56,07931st of 239 in NH
Average commute32.8 min
86th
WeaknessU.S. 26.4 min · NH 26.7 min51st of 234 in NH
Median household income$119,712
85th
StrengthU.S. $80,734 · NH $99,03153rd of 234 in NH
Residents 65 and older21.6%
81st
U.S. 17.2% · NH 20.1%127th of 239 in NH
Government workers18.9%
80th
U.S. 14.5% · NH 13.1%40th of 239 in NH
Per capita income$54,328
78th
U.S. $44,673 · NH $52,79892nd of 239 in NH
Bachelor's degree or higher41.1%
67th
U.S. 35.7% · NH 40.6%101st of 239 in NH
Median home value$409,600
63rd
U.S. $332,700 · NH $402,50088th of 235 in NH
Tech workers3.2%
56th
U.S. 3.8% · NH 4.3%97th of 239 in NH
Work from home8.5%
25th
U.S. 15.1% · NH 16.8%202nd of 239 in NH
Foreign-born residents4%
24th
U.S. 14.1% · NH 6.1%76th of 239 in NH
Residents under 1818.9%
24th
U.S. 22% · NH 18.2%95th of 239 in NH
Broadband access85.5%
14th
WeaknessU.S. 91% · NH 92.9%218th of 239 in NH
Population density73/sq mi
10th
U.S. 95/sq mi · NH 156/sq mi143rd of 239 in NH
Population1,451
2nd
U.S. 334,922,499 · NH 1,394,868172nd of 239 in NH
Unemployment rate1.1%
2nd
StrengthU.S. 5.2% · NH 3.3%196th of 239 in NH
Diversity index6.3
2nd
U.S. 61.4 · NH 24211th of 239 in NH
Poverty rate1.5%
1st
StrengthU.S. 12.5% · NH 7.2%222nd of 239 in NH
Uninsured rate1%
1st
StrengthU.S. 8.4% · NH 5.3%227th of 239 in NH
Income inequality (Gini)0.284
1st
StrengthU.S. 0.483 · NH 0.444235th of 239 in NH

Measure	03837	Belknap	NH	U.S.	National percentile	Rank in NH
Homeownership rateStrength	99.7%	80.1%	72.8%	65.2%	99th	10th of 239
Veterans	18.8%	9.7%	7.6%	6.2%	99th	3rd of 239
Housing vacancy	37%	32.5%	14.3%	10.1%	99th	43rd of 239
Rent-burdened rentersWeakness	100%	49.8%	48.2%	51.1%	99th	2nd of 230
Healthcare workers	21.4%	8.1%	9.6%	9.7%	99th	6th of 239
Median age	55.1	48.4	43.3	38.9	98th	41st of 239
Self-employed workers	19.1%	11.7%	9.3%	10%	97th	27th of 239
Median earnings per workerStrength	$70,167	$52,380	$56,079	$49,666	87th	31st of 239
Average commuteWeakness	32.8 min	25 min	26.7 min	26.4 min	86th	51st of 234
Median household incomeStrength	$119,712	$92,783	$99,031	$80,734	85th	53rd of 234
Residents 65 and older	21.6%	24%	20.1%	17.2%	81st	127th of 239
Government workers	18.9%	15.8%	13.1%	14.5%	80th	40th of 239
Per capita income	$54,328	$49,037	$52,798	$44,673	78th	92nd of 239
Bachelor's degree or higher	41.1%	33.6%	40.6%	35.7%	67th	101st of 239
Median home value	$409,600	$374,900	$402,500	$332,700	63rd	88th of 235
Tech workers	3.2%	3.2%	4.3%	3.8%	56th	97th of 239
Work from home	8.5%	13.5%	16.8%	15.1%	25th	202nd of 239
Foreign-born residents	4%	2.8%	6.1%	14.1%	24th	76th of 239
Residents under 18	18.9%	17.3%	18.2%	22%	24th	95th of 239
Broadband accessWeakness	85.5%	91.9%	92.9%	91%	14th	218th of 239
Population density	73/sq mi	161/sq mi	156/sq mi	95/sq mi	10th	143rd of 239
Population	1,451	64,659	1,394,868	334,922,499	2nd	172nd of 239
Unemployment rateStrength	1.1%	3.1%	3.3%	5.2%	2nd	196th of 239
Diversity index	6.3	13.9	24	61.4	2nd	211th of 239
Poverty rateStrength	1.5%	8.5%	7.2%	12.5%	1st	222nd of 239
Uninsured rateStrength	1%	5.9%	5.3%	8.4%	1st	227th of 239
Income inequality (Gini)Strength	0.284	0.449	0.444	0.483	1st	235th 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

15%

5–17

18–24

10%

25–34

13%

35–44

45–54

29%

55–64

12%

65–74

75+

Median age

55.1

Under 18

18.9%

65 and over

21.6%

Race and ethnicity

White97%
Black2%
Hispanic0%
Asian0%
Native American0%
Pacific Islander0%
Other0%
Multiracial1%

Diversity index

6.3

U.S. 61.4

Foreign-born

U.S. 14.1%

Born in state

41.8%

Language spoken at home (households)

English only

96%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 602
Average household size: 2.4
Family households: 70.1%
Married couples: 66.8%
Living alone: 29.9%
Veterans (of adults): 18.8%
Male / female: 49% / 51%

Income and poverty

Household income distribution

<$25k

$25–50k

$50–75k

10%

$75–100k

10%

$100–150k

32%

$150–200k

20%

$200k+

17%

Median household income

03837

$119,712

Belknap Co.

$92,783

New Hampshire

$99,031

United States

$80,734

Per capita income

$54,328

U.S. $44,673

Poverty rate

1.5%

U.S. 12.5%

Households earning $150K+

36.9%

U.S. 23%

Income inequality (Gini)

0.284

U.S. 0.483

Housing

Median home value

03837

$409,600

Belknap Co.

$374,900

New Hampshire

$402,500

United States

$332,700

Median gross rent

03837

—

Belknap Co.

$1,167

New Hampshire

$1,491

United States

$1,413

Types of housing

Single-family

95%

2–4 units

0.2%

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 956
Owner-occupied: 99.7%
Vacant: 37%
Median year built: 1987
Median rooms: 5.8
Renters paying 30%+ of income: 100%
Renters paying 50%+ of income: 100%
Home value to income: 3.4× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

90%

Carpooled

0.7%

Transit

Walked

Bicycle

Worked from home

Other

Commute time (one way)

<10 min

10–19

15%

20–29

18%

30–44

30%

45–59

22%

60+

Average commute

32.8 min

U.S. 26.4 min

Unemployment

1.1%

U.S. 5.2%

In labor force

77.4%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Healthcare

21%

Business and finance

13%

Construction and repair

11%

Office and admin

10%

Police and fire

10%

Management

Engineering and science

Education

Sales

Computer and math

Food service

Cleaning and personal care

Production

Farming, fishing and forestry

Legal and social services

0.2%

Arts, media and sports

Transportation and moving

Industries

Health care and social assistance

23%

Construction

13%

Professional and technical services

12%

Retail

12%

Public administration

12%

Manufacturing

Education

Other services

Restaurants and hotels

Wholesale

Information

Arts and recreation

Agriculture and mining

Finance, insurance and real estate

Transportation, warehousing and utilities

Admin, support and management

Median earnings per worker

$70,167

U.S. $49,666

Self-employed

19.1%

U.S. 10%

Government workers

18.9%

U.S. 14.5%

Nonprofit workers

13.7%

U.S. 8.8%

Median earnings by type of work

Type of work	03837	U.S.
Management, business, science and arts	$82,488	$74,888
Service	$58,750	$26,804
Sales and office	$26,605	$40,476
Construction and maintenance	$56,100	$49,199
Production and transportation	—	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

19%

Some college

23%

Associate's

10%

Bachelor's

17%

Graduate

25%

High school graduate or higher: 93.1%
Bachelor's degree or higher: 41.1%
Graduate or professional degree: 24.5%
Households with broadband: 85.5%
Cable, fiber or DSL: 75.2%
No internet access: 13%
Without health insurance: 1%
Limited-English households: 0%

Geography

City (USPS): Gilmanton Iron Works
State: New Hampshire
County: Belknap County
Center point: 43.4222° N, 71.3361° W
Land area: 20 sq mi
Water area: 0.7 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Zip codes near 03837

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
03237	Gilmanton, NH	2.7 mi	2,575	$111,359	$345,400
03225	Center Barnstead, NH	6.2 mi	3,834	$111,660	$368,400
03810	Alton Bay, NH	6.6 mi	2,314	$148,261	$569,200
03218	Barnstead, NH	6.7 mi	1,160	$112,500	$346,900
03249	Gilford, NH	7 mi	7,830	$116,635	$456,500
03809	Alton, NH	7.4 mi	3,680	$106,397	$387,500
03220	Belmont, NH	8.2 mi	7,393	$68,242	$316,200
03307	Loudon, NH	8.2 mi	5,724	$107,226	$365,400
03298	Tilton, NH · PO box	9 mi	—	—	—
03299	Tilton, NH · PO box	9 mi	—	—	—
03263	Pittsfield, NH	9.3 mi	4,105	$74,318	$294,800
03855	New Durham, NH	9.7 mi	2,748	$100,194	$339,400

Zip codes like 03837 elsewhere

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

Questions about 03837

What city is zip code 03837?

03837 is assigned to Gilmanton Iron Works, New Hampshire. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 03837 in?

03837 is in Belknap County, New Hampshire.

What is the population of 03837?

About 1,451 people live in 03837, according to the Census Bureau's American Community Survey.

What time zone is 03837 in?

03837 is in Eastern Time.

What is the median household income in 03837?

The median household income in 03837 is $119,712.

What zip codes are near 03837?

The closest zip codes to 03837 are 03237, 03225, 03810, 03218, 03249.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 03837, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.