03602 ZIP Code — Alstead, NH

Cheshire County, New Hampshire

ZIP code 03602 is located in Alstead, New Hampshire, within Cheshire County. It covers approximately 61.41 square miles and serves a population of 2,364 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.

About ZIP code 03602

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $220,300. Owner-occupancy sits near the national average at 75%.

The gap between median ($56,696) and mean household income suggests income inequality — a small number of higher earners pull the average up. 51% 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 32 minutes is near the national average.

Educational attainment is near the national average, with 28% of residents holding a bachelor's degree or higher.

2,364

population

61.41

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

03602 ZIP code map

Cities in ZIP code 03602

Below are the cities the US Postal Service accepts for ZIP code 03602. Using any city not on this list may result in mail delivery delays.

City	Status
Alstead	Acceptable
Alstead	Preferred

Nearby ZIP codes

03608 Walpole (5.4 mi) 03601 Acworth (7.5 mi) 03448 Gilsum (7.7 mi) 03456 Marlow (7.8 mi) 05158 Westminster (7.8 mi) 03605 Lempster (8.3 mi) 03603 Charlestown (8.6 mi) 05101 Bellows Falls (9 mi) 05154 Saxtons River (9.2 mi) 03445 Sullivan (9.9 mi) 03431 Keene (10.9 mi) 03467 Westmoreland (12.2 mi)

Demographics updated 05/2026

Population
Total population	2,364
Population density	38 / sq mi
State FIPS	33
County FIPS	005

Geography
Land area	61.41 sq mi
Water area	0.64 sq mi
Latitude	43.1292
Longitude	-72.3285
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	47.0%	36.3%	31.0%
$50k – $100k	28.2%	35.9%	31.2%
$100k – $200k	21.1%	22.5%	28.1%
Over $200k	3.8%	5.4%	9.7%

Demographics & statistics

2,364

Population

People per sq mi

51.1

Median age

$56,696

Median household income

$44,058

Per capita income

$220,300

Median home value

$982

Median monthly rent

74.8%

Home ownership

11.0%

Poverty rate

5.1%

Unemployment

1,033

Housing units

28.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

159

25–34

166

104

35–44

109

122

45–54

127

122

55–59

127

109

60–64

113

194

65–74

201

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	395	16.7%
18 and over	1,969	83.3%
65 and over	599	25.3%
Median age	51.1 years

Race & ethnicity

White 93%

Two or more races 2.9%

Hispanic or Latino 2.7%

Asian 0.8%

Other race 0.6%

Group	Count	%
White	2,258	93%
Two or more races	70	2.9%
Hispanic or Latino	65	2.7%
Asian	19	0.8%
Other race	15	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	47.0%	36.3%	31.0%
$50k – $100k	28.2%	35.9%	31.2%
$100k – $200k	21.1%	22.5%	28.1%
Over $200k	3.8%	5.4%	9.7%

Under $10k 6.1%

$10k–$15k 5.0%

$15k–$25k 10.7%

$25k–$35k 5.2%

$35k–$50k 11.2%

$50k–$75k 20.3%

$75k–$100k 10.0%

$100k–$150k 15.6%

$150k–$200k 9.6%

$200k+ 6.4%

Range	% of households
Under $10k	6.1%
$10k–$15k	5.0%
$15k–$25k	10.7%
$25k–$35k	5.2%
$35k–$50k	11.2%
$50k–$75k	20.3%
$75k–$100k	10.0%
$100k–$150k	15.6%
$150k–$200k	9.6%
$200k+	6.4%
Median income	$56,696

Housing

Home values

Under $50k 7.0%

$50k–$100k 5.7%

$100k–$150k 12.6%

$150k–$200k 19.3%

$200k–$300k 29.6%

$300k–$500k 21.5%

$500k–$1M 3.9%

$1M+ 0.4%

Housing overview

Metric	Value
Median home value	$220,300
Median rent / month	$982
Owner occupied	74.8%
Renter occupied	25.2%
Vacant	24.9%
Single-family detached	76.8%
Large apartment buildings	4.3%
Mobile homes	9.7%
Median rooms	5.6
Avg household size (owned)	2.55

Year built

Era	%
2020 or later	0.0%
2010–2019	3.5%
2000–2009	11.9%
1990–1999	12.3%
1980–1989	14.8%
1970–1979	11.4%
1960–1969	11.4%
1950–1959	12.0%
1940–1949	6.9%
1939 or earlier	15.9%

Bedrooms

Size	% of units
No bedroom (studio)	3.7%
1 bedroom	15.2%
2 bedrooms	27.8%
3 bedrooms	34.7%
4 bedrooms	14.7%
5+ bedrooms	3.9%

Vehicles per household

Vehicles	% of households
No vehicle	13.7%
1 vehicle	17.5%
2 vehicles	45.4%
3 or more	23.5%

Heating fuel

Fuel type	%
Utility gas	0.5%
Electricity	2.8%
Propane / LP gas	20.1%
Fuel oil	49.0%
Wood	25.5%
Solar	1.4%

Households & families

Household type	Count	%
Married-couple family	565	59.0%
Cohabiting couple	81	8.5%
Male householder, no spouse	83	8.7%
Female householder, no spouse	228	23.8%
Households with children under 18	176	18.4%
Households with seniors (65+)	409	42.7%
Average household size	2.47

Marital status

Status	Male	Female
Never married	29.7%	17.7%
Married	59.8%	55.5%
Separated	1.5%	0.4%
Widowed	0.7%	8.5%
Divorced	8.3%	17.9%

Education

Less than 9th grade 1.1%

Some HS, no diploma 5.3%

HS graduate 39.6%

Some college, no degree 14.8%

Associate's degree 10.9%

Bachelor's degree 19.3%

Graduate / professional 8.9%

Metric	%
HS diploma or higher	93.5%
Bachelor's or higher	28.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	33	7.6%
Kindergarten	42	9.6%
Elementary school	183	42.0%
High school	95	21.8%
College / grad school	83	19.0%

Employment

Industry of employment

Education & healthcare 31.0%

Construction 14.9%

Manufacturing 11.1%

Retail trade 9.8%

Professional & management 6.4%

Wholesale trade 5.8%

Arts, food & hospitality 4.2%

Transportation & utilities 3.9%

Agriculture & mining 3.6%

Public administration 3.1%

Other services 2.4%

Information 2.2%

Finance & real estate 1.5%

Occupation

Category	%
Management, business & arts	32.5%
Service	17.2%
Sales & office	19.8%
Natural resources & construction	19.4%
Production & transportation	11.2%

Employment type

Type	%
Private sector	75.7%
Government	15.7%
Self-employed	8.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.8%
Carpool	8.1%
Public transit	0.0%
Walk	0.0%
Work from home	8.9%
Other means	1.1%
Avg commute (minutes)	31.7

Poverty

All people 11.0%

Under 18 years 13.9%

18 and over 10.4%

Married-couple families 3.0%

Female-led households 9.7%

Income support

Source	% of households
Social Security	51.1%
Retirement income	32.3%
Supplemental Security	2.0%
Cash public assistance	3.9%
Food stamps / SNAP	7.3%

Health indicators

Condition	%
Obesity	32.7%
High blood pressure	32.2%
High cholesterol	31.4%
Diabetes	9.7%
Heart disease	6.8%
Stroke	3.1%
Asthma	11.1%
Arthritis	29.0%
Kidney disease	2.9%
Pulmonary disease	7.6%
Cancer	7.5%

Behavior / access	%
Smoking	16.9%
Binge drinking	16.7%
No physical activity	21.1%
Less than 7 hrs sleep	34.0%
Depression	23.8%
Fair or poor health	14.0%
Poor mental health	14.8%
Poor physical health	11.1%
No health insurance	11.3%
Visited doctor (checkup)	68.8%
Visited dentist	63.7%
Cholesterol screening	90.9%
Teeth loss	14.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	150	7.6%

Disability	%
Any disability	15.7%
Under 18	0.0%
18–64 years	18.9%
65 and over	18.5%

Health insurance coverage

Type	%
Private insurance	64.2%
Public insurance	46.3%
No insurance	8.4%
Uninsured under 19	5.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,283	96.6%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,325	98.4%
Born in same state	2,310	97.7%
Born in different state	1,034	43.7%
Foreign born	15	0.6%
Naturalized citizen	39	1.6%
Not a US citizen	21	53.8%

Ancestry

Ancestry	Count	%
French	673	28.5%
Italian	618	26.1%
Arab	165	7%
German	155	6.6%

Ancestry	Count	%
Polish	30	1.3%
English	23	1%
Norwegian	8	0.3%
Irish	3	0.1%

Technology access

Metric	% of households
Computer access	40.5%
Internet access	94.9%

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

Frequently asked questions about ZIP code 03602

What city is ZIP code 03602 in?

ZIP code 03602 is primarily assigned to Alstead, New Hampshire.

What county is ZIP code 03602 in?

ZIP code 03602 falls within Cheshire County, New Hampshire.

Does ZIP code 03602 have a large retiree population?

51% of households in ZIP code 03602 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 03602 have an older population?

25% of residents in ZIP code 03602 are 65 or older, above the national average of ~17%.

What is the population of ZIP code 03602?

ZIP code 03602 has an estimated population of 2,364 residents, with a density of 38 people per square mile.

What is the median household income in ZIP code 03602?

The median household income in ZIP code 03602 is $56,696, below the national median of ~$75,000.

What timezone is ZIP code 03602 in?

ZIP code 03602 observes the EST timezone.