03743 ZIP Code — Claremont, NH

Sullivan County, New Hampshire

ZIP code 03743 is located in Claremont, New Hampshire, within Sullivan County. It covers approximately 59.10 square miles and serves a population of 13,647 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.

About ZIP code 03743

The housing stock consists of a mix of housing types. Most homes were built in the pre-1940, giving the area an established character. Median home value is $158,600. Owner-occupancy sits near the national average at 60%.

The gap between median ($53,957) and mean household income suggests income inequality — a small number of higher earners pull the average up. 37% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 25 minutes is near the national average.

Educational attainment is near the national average, with 23% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (21%) compared to national benchmarks.

13,647

population

59.10

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

03743 ZIP code map

Cities in ZIP code 03743

Below are the cities the US Postal Service accepts for ZIP code 03743. Using any city not on this list may result in mail delivery delays.

City	Status
Claremont	Acceptable
Claremont	Preferred

Nearby ZIP codes

03773 Newport (7.1 mi) 03603 Charlestown (7.2 mi) 05156 Springfield (7.3 mi) 03601 Acworth (7.9 mi) 05151 Perkinsville (8.2 mi) 03605 Lempster (9.2 mi) 05150 North Springfield (9.8 mi) 05037 Brownsville (11 mi) 05089 Windsor (11.4 mi) 03752 Goshen (11.5 mi) 03782 Sunapee (12.5 mi) 03770 Meriden (13 mi)

Demographics updated 05/2026

Population
Total population	13,647
Population density	231 / sq mi
State FIPS	33
County FIPS	019

Geography
Land area	59.10 sq mi
Water area	0.90 sq mi
Latitude	43.3464
Longitude	-72.3299
Timezone	Eastern (ET)
Area code	603

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	53.0%	39.4%	31.0%
$50k – $100k	32.4%	36.1%	31.2%
$100k – $200k	13.2%	19.6%	28.1%
Over $200k	1.3%	4.9%	9.7%

Demographics & statistics

13,647

Population

231

People per sq mi

44.4

Median age

$53,957

Median household income

$34,836

Per capita income

$158,600

Median home value

$1,072

Median monthly rent

60.2%

Home ownership

15.8%

Poverty rate

2.3%

Unemployment

4,003

Housing units

22.8%

Bachelor's or higher

Age distribution

Male Female

362

Under 5

358

382

5–9

379

355

10–14

351

384

15–19

380

355

20–24

352

834

25–34

826

834

35–44

826

1,049

45–54

1,040

447

55–59

444

420

60–64

416

946

65–74

938

369

75–84

366

118

85+

116

← Male

Female →

Age summary

Group	Count	%
Under 18	2,647	19.4%
18 and over	11,000	80.6%
65 and over	2,853	20.9%
Median age	44.4 years

Race & ethnicity

White 90.1%

Two or more races 4.8%

Hispanic or Latino 2.1%

Black or African American 2.1%

Asian 0.9%

Group	Count	%
White	12,565	90.1%
Two or more races	673	4.8%
Hispanic or Latino	296	2.1%
Black or African American	286	2.1%
Asian	123	0.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	53.0%	39.4%	31.0%
$50k – $100k	32.4%	36.1%	31.2%
$100k – $200k	13.2%	19.6%	28.1%
Over $200k	1.3%	4.9%	9.7%

Under $10k 6.1%

$10k–$15k 4.2%

$15k–$25k 10.4%

$25k–$35k 10.8%

$35k–$50k 14.3%

$50k–$75k 20.2%

$75k–$100k 13.7%

$100k–$150k 13.6%

$150k–$200k 2.8%

$200k+ 4.0%

Range	% of households
Under $10k	6.1%
$10k–$15k	4.2%
$15k–$25k	10.4%
$25k–$35k	10.8%
$35k–$50k	14.3%
$50k–$75k	20.2%
$75k–$100k	13.7%
$100k–$150k	13.6%
$150k–$200k	2.8%
$200k+	4.0%
Median income	$53,957

Housing

Home values

Under $50k 8.0%

$50k–$100k 9.9%

$100k–$150k 25.3%

$150k–$200k 30.4%

$200k–$300k 20.4%

$300k–$500k 4.7%

$500k–$1M 1.2%

Housing overview

Metric	Value
Median home value	$158,600
Median rent / month	$1,072
Owner occupied	60.2%
Renter occupied	39.8%
Vacant	12.9%
Single-family detached	52.1%
Large apartment buildings	6.5%
Mobile homes	8.9%
Median rooms	5.1
Avg household size (owned)	2.71

Year built

Era	%
2020 or later	0.0%
2010–2019	1.1%
2000–2009	3.0%
1990–1999	3.9%
1980–1989	11.8%
1970–1979	16.3%
1960–1969	9.6%
1950–1959	9.1%
1940–1949	8.3%
1939 or earlier	36.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	19.6%
2 bedrooms	34.5%
3 bedrooms	32.4%
4 bedrooms	11.6%
5+ bedrooms	1.4%

Vehicles per household

Vehicles	% of households
No vehicle	8.8%
1 vehicle	36.8%
2 vehicles	36.6%
3 or more	17.8%

Heating fuel

Fuel type	%
Utility gas	2.8%
Electricity	9.3%
Propane / LP gas	18.7%
Fuel oil	59.4%
Wood	5.7%
Solar	0.3%
No fuel used	0.9%

Households & families

Household type	Count	%
Married-couple family	1,961	36.8%
Cohabiting couple	644	12.1%
Male householder, no spouse	1,380	25.9%
Female householder, no spouse	1,350	25.3%
Households with children under 18	1,164	21.8%
Households with seniors (65+)	1,768	33.1%
Average household size	2.48

Marital status

Status	Male	Female
Never married	38.7%	34.5%
Married	35.3%	38.1%
Separated	1.2%	0.7%
Widowed	5.8%	13.4%
Divorced	19.0%	13.3%

Education

Less than 9th grade 3.8%

Some HS, no diploma 8.5%

HS graduate 43.0%

Some college, no degree 14.3%

Associate's degree 7.7%

Bachelor's degree 15.0%

Graduate / professional 7.7%

Metric	%
HS diploma or higher	87.7%
Bachelor's or higher	22.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	130	5.0%
Kindergarten	148	5.7%
Elementary school	1,198	46.4%
High school	654	25.3%
College / grad school	454	17.6%

Employment

Industry of employment

Education & healthcare 27.8%

Retail trade 20.2%

Manufacturing 17.0%

Arts, food & hospitality 10.4%

Professional & management 6.5%

Construction 5.4%

Finance & real estate 4.6%

Public administration 2.9%

Transportation & utilities 2.4%

Other services 0.9%

Agriculture & mining 0.8%

Wholesale trade 0.7%

Information 0.4%

Occupation

Category	%
Management, business & arts	31.1%
Service	19.8%
Sales & office	21.7%
Natural resources & construction	5.2%
Production & transportation	22.1%

Employment type

Type	%
Private sector	89.2%
Government	8.4%
Self-employed	2.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	82.0%
Carpool	8.1%
Public transit	0.0%
Walk	1.7%
Work from home	7.3%
Other means	0.9%
Avg commute (minutes)	24.6

Poverty

All people 15.8%

Under 18 years 21.8%

18 and over 14.3%

Married-couple families 7.4%

Female-led households 28.1%

Income support

Source	% of households
Social Security	37.3%
Retirement income	21.0%
Supplemental Security	7.7%
Cash public assistance	5.2%
Food stamps / SNAP	11.1%

Health indicators

Condition	%
Obesity	35.2%
High blood pressure	32.5%
High cholesterol	31.9%
Diabetes	10.6%
Heart disease	7.2%
Stroke	3.5%
Asthma	11.9%
Arthritis	28.7%
Kidney disease	3.2%
Pulmonary disease	8.7%
Cancer	7.1%

Behavior / access	%
Smoking	20.9%
Binge drinking	16.1%
No physical activity	24.4%
Less than 7 hrs sleep	35.2%
Depression	25.2%
Fair or poor health	16.8%
Poor mental health	15.9%
Poor physical health	12.5%
No health insurance	13.7%
Visited doctor (checkup)	70.1%
Visited dentist	58.4%
Cholesterol screening	88.6%
Teeth loss	18.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,045	9.5%

Disability	%
Any disability	17.9%
Under 18	5.7%
18–64 years	18.7%
65 and over	27.4%

Health insurance coverage

Type	%
Private insurance	60.4%
Public insurance	45.9%
No insurance	6.0%
Uninsured under 19	4.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	12,927	94.7%
Spanish	17	0.1%
Other Indo-European	10	0.1%
Asian & Pacific Islander	7	0.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	13,179	96.6%
Born in same state	13,032	95.5%
Born in different state	8,136	59.6%
Foreign born	147	1.1%
Naturalized citizen	468	3.4%
Not a US citizen	425	90.8%

Ancestry

Ancestry	Count	%
French	2,120	15.5%
Italian	1,197	8.8%
German	1,013	7.4%
Arab	743	5.4%
Polish	116	0.9%

Ancestry	Count	%
Irish	86	0.6%
Dutch	41	0.3%
English	36	0.3%
Norwegian	15	0.1%

Technology access

Metric	% of households
Computer access	39.1%
Internet access	93.1%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 03743

What city is ZIP code 03743 in?

ZIP code 03743 is primarily assigned to Claremont, New Hampshire.

What county is ZIP code 03743 in?

ZIP code 03743 falls within Sullivan County, New Hampshire.

What is the poverty rate in ZIP code 03743?

16% of residents in ZIP code 03743 live below the poverty line, above the national average.

Does ZIP code 03743 have a large retiree population?

37% of households in ZIP code 03743 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 03743 have a large veteran population?

10% of civilians in ZIP code 03743 are veterans, above the national average of ~7%.

What is the typical home value in ZIP code 03743?

The median home value in ZIP code 03743 is $158,600.

What timezone is ZIP code 03743 in?

ZIP code 03743 observes the EST timezone.