03218 ZIP Code — Barnstead, NH

Belknap County, New Hampshire

ZIP code 03218 is located in Barnstead, New Hampshire, within Belknap County. It covers approximately 15.30 square miles and serves a population of 1,535 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.

About ZIP code 03218

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $262,600. Owner-occupancy is high at 77%, well above the national average.

Median household income is $88,188. The poverty rate of 3% is below the national average.

The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 31 minutes is near the national average.

College attainment at 14% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 03218 reflects a community defined by a trades-oriented workforce and high homeownership.

1,535

population

15.30

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

03218 ZIP code map

Cities in ZIP code 03218

Below are the cities the US Postal Service accepts for ZIP code 03218. Using any city not on this list may result in mail delivery delays.

City	Status
Barnstead	Preferred

Nearby ZIP codes

03263 Pittsfield (3 mi) 03225 Center Barnstead (3.3 mi) 03884 Strafford (5.6 mi) 03261 Northwood (6.7 mi) 03837 Gilmanton Iron Works (7.9 mi) 03234 Epsom (8.1 mi) 03835 Farmington (9.4 mi) 03237 Gilmanton (11.1 mi) 03809 Alton (11.2 mi) 03037 Deerfield (11.3 mi) 03855 New Durham (11.8 mi) 03825 Barrington (12.2 mi)

Demographics updated 05/2026

Population
Total population	1,535
Population density	100 / sq mi
State FIPS	33
County FIPS	001

Geography
Land area	15.30 sq mi
Water area	0.20 sq mi
Latitude	43.3119
Longitude	-71.2487
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	36.5%	36.9%	31.0%
$50k – $100k	36.3%	31.7%	31.2%
$100k – $200k	22.6%	25.5%	28.1%
Over $200k	4.6%	5.9%	9.7%

Demographics & statistics

1,535

Population

100

People per sq mi

42.7

Median age

$88,188

Median household income

$36,024

Per capita income

$262,600

Median home value

$1,423

Median monthly rent

76.5%

Home ownership

2.7%

Poverty rate

0.0%

Unemployment

459

Housing units

14.0%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

134

104

45–54

148

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	350	22.8%
18 and over	1,185	77.2%
65 and over	269	17.5%
Median age	42.7 years

Race & ethnicity

White 97.4%

Two or more races 2.6%

Group	Count	%
White	1,495	97.4%
Two or more races	40	2.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	36.5%	36.9%	31.0%
$50k – $100k	36.3%	31.7%	31.2%
$100k – $200k	22.6%	25.5%	28.1%
Over $200k	4.6%	5.9%	9.7%

$10k–$15k 3.7%

$15k–$25k 9.2%

$25k–$35k 15.5%

$35k–$50k 7.7%

$50k–$75k 10.5%

$75k–$100k 19.7%

$100k–$150k 21.8%

$150k–$200k 4.2%

$200k+ 7.8%

Range	% of households
$10k–$15k	3.7%
$15k–$25k	9.2%
$25k–$35k	15.5%
$35k–$50k	7.7%
$50k–$75k	10.5%
$75k–$100k	19.7%
$100k–$150k	21.8%
$150k–$200k	4.2%
$200k+	7.8%
Median income	$88,188

Housing

Home values

Under $50k 2.0%

$50k–$100k 2.2%

$100k–$150k 6.3%

$150k–$200k 10.2%

$200k–$300k 47.7%

$300k–$500k 27.0%

$500k–$1M 4.6%

Housing overview

Metric	Value
Median home value	$262,600
Median rent / month	$1,423
Owner occupied	76.5%
Renter occupied	23.5%
Vacant	0.0%
Single-family detached	78.0%
Large apartment buildings	0.0%
Mobile homes	13.3%
Median rooms	5.7
Avg household size (owned)	2.47

Year built

Era	%
2020 or later	0.0%
2010–2019	1.5%
2000–2009	12.0%
1990–1999	24.3%
1980–1989	19.8%
1970–1979	24.5%
1960–1969	1.5%
1950–1959	0.0%
1940–1949	0.0%
1939 or earlier	16.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	11.7%
2 bedrooms	14.5%
3 bedrooms	67.7%
4 bedrooms	1.5%
5+ bedrooms	4.7%

Vehicles per household

Vehicles	% of households
No vehicle	1.5%
1 vehicle	24.8%
2 vehicles	48.2%
3 or more	25.5%

Heating fuel

Fuel type	%
Utility gas	5.7%
Electricity	5.0%
Propane / LP gas	11.7%
Fuel oil	55.2%
Wood	22.5%

Households & families

Household type	Count	%
Married-couple family	319	53.2%
Cohabiting couple	25	4.2%
Male householder, no spouse	85	14.2%
Female householder, no spouse	171	28.5%
Households with children under 18	172	28.7%
Households with seniors (65+)	143	23.8%
Average household size	2.56

Marital status

Status	Male	Female
Never married	27.8%	21.0%
Married	62.8%	47.8%
Separated	0.0%	0.0%
Widowed	0.0%	8.6%
Divorced	9.5%	22.7%

Education

Less than 9th grade 0.0%

Some HS, no diploma 8.1%

HS graduate 41.5%

Some college, no degree 18.3%

Associate's degree 18.0%

Bachelor's degree 6.4%

Graduate / professional 7.7%

Metric	%
HS diploma or higher	91.9%
Bachelor's or higher	14.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	25	5.6%
Kindergarten	33	7.3%
Elementary school	210	46.8%
High school	116	25.8%
College / grad school	65	14.5%

Employment

Industry of employment

Education & healthcare 24.0%

Professional & management 15.9%

Manufacturing 12.5%

Other services 9.5%

Retail trade 8.3%

Arts, food & hospitality 7.0%

Transportation & utilities 5.9%

Public administration 5.9%

Wholesale trade 4.4%

Construction 4.2%

Agriculture & mining 1.2%

Finance & real estate 1.2%

Occupation

Category	%
Management, business & arts	23.7%
Service	27.4%
Sales & office	19.8%
Natural resources & construction	15.3%
Production & transportation	13.8%

Employment type

Type	%
Private sector	78.2%
Government	13.6%
Self-employed	8.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	82.1%
Carpool	7.5%
Public transit	0.0%
Walk	0.0%
Work from home	9.0%
Other means	1.4%
Avg commute (minutes)	31.4

Poverty

All people 2.7%

Under 18 years 0.0%

18 and over 3.5%

Married-couple families 6.9%

Female-led households 0.0%

Income support

Source	% of households
Social Security	23.0%
Retirement income	18.5%
Supplemental Security	5.7%
Cash public assistance	1.7%
Food stamps / SNAP	5.7%

Health indicators

Condition	%
Obesity	35.4%
High blood pressure	31.0%
High cholesterol	31.8%
Diabetes	8.6%
Heart disease	5.7%
Stroke	2.5%
Asthma	10.8%
Arthritis	25.0%
Kidney disease	2.4%
Pulmonary disease	6.7%
Cancer	6.4%

Behavior / access	%
Smoking	18.5%
Binge drinking	19.4%
No physical activity	21.4%
Less than 7 hrs sleep	32.3%
Depression	21.5%
Fair or poor health	12.0%
Poor mental health	14.8%
Poor physical health	10.2%
No health insurance	11.4%
Visited doctor (checkup)	70.3%
Visited dentist	65.6%
Cholesterol screening	90.7%
Teeth loss	12.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	120	10.1%

Disability	%
Any disability	17.4%
Under 18	12.6%
18–64 years	8.7%
65 and over	53.2%

Health insurance coverage

Type	%
Private insurance	70.3%
Public insurance	35.7%
No insurance	4.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,484	96.7%
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)	1,526	99.4%
Born in same state	1,517	98.8%
Born in different state	811	52.8%
Foreign born	9	0.6%
Naturalized citizen	9	0.6%
Not a US citizen	9	100.0%

Ancestry

Ancestry	Count	%
Italian	448	29.2%
Arab	220	14.3%
French	176	11.5%

Ancestry	Count	%
German	54	3.5%
Dutch	16	1%
Polish	12	0.8%

Technology access

Metric	% of households
Computer access	39.1%
Internet access	97.3%

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

Frequently asked questions about ZIP code 03218

What city is ZIP code 03218 in?

ZIP code 03218 is primarily assigned to Barnstead, New Hampshire.

What county is ZIP code 03218 in?

ZIP code 03218 falls within Belknap County, New Hampshire.

How educated is the population of ZIP code 03218?

14% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 03218 have a large veteran population?

10% of civilians in ZIP code 03218 are veterans, above the national average of ~7%.

What is the population of ZIP code 03218?

ZIP code 03218 has an estimated population of 1,535 residents, with a density of 100 people per square mile.

What is the median household income in ZIP code 03218?

The median household income in ZIP code 03218 is $88,188, above the national median of ~$75,000.

What timezone is ZIP code 03218 in?

ZIP code 03218 observes the EST timezone.