Seabrook ZIP Codes — Rockingham County, NH

There is one unique ZIP code in Seabrook, New Hampshire and it is 03874. Area code: 603.

ZIP codes

8.95

sq mi land

0.63

sq mi water

603

area code

Seabrook, NH ZIP code map

About Seabrook, NH

Seabrook is a charming town located in Rockingham County, New Hampshire. Known for its beautiful beaches and quaint New England atmosphere, it offers a unique blend of coastal living and small-town charm. The town is a delightful destination for both residents and visitors alike, providing an array of recreational opportunities and local amenities.

Location & geography

Seabrook is situated on the southeastern coast of New Hampshire, bordered by the Atlantic Ocean to the east. The town is approximately 2 miles south of Hampton, 6 miles north of Newburyport, and about 11 miles from Portsmouth. Its total land area is 8.95 square miles, complemented by a water area of 0.63 square miles, adding to its coastal character.

Community & economy

Seabrook is characterized by a close-knit community that values both its historical roots and modern developments. The town has an economy primarily driven by tourism, with many visitors attracted to its beautiful beaches and recreational facilities. Daily life in Seabrook typically revolves around local businesses, family-friendly events, and outdoor activities that celebrate the town's scenic surroundings.

Transportation

Major transportation routes in Seabrook include Interstate 95, which provides convenient access to neighboring cities and states. The nearest airport is the Portsmouth International Airport, located approximately 20 miles away, which offers regional flights. Public transit options in the area may be limited, but the town is easily navigable by car.

History

Seabrook was first settled in the early 17th century and was officially incorporated in 1768, making it one of New Hampshire's older towns. Historically, it thrived on industries such as fishing and agriculture, which played significant roles in its development. Notable events include the establishment of its famous beaches that have drawn tourists for generations.

Did you know?

One little-known fact about Seabrook is that it is home to one of the oldest continuously operating beaches in New Hampshire. Additionally, the town is known for its successful cranberry bogs, which contribute to its agricultural heritage.

ZIP codes for Seabrook, NH (1)

ZIP code	City	County	Map
03874	Seabrook	Rockingham	View map

Demographics & statistics

8,614

Population

50.4

Median age

$85,767

Median household income

$51,057

Per capita income

$377,700

Median home value

$1,371

Median monthly rent

73.8%

Home ownership

7.3%

Poverty rate

9.0%

Unemployment

3,435

Housing units

23.5%

Bachelor's or higher

Age distribution

Male Female

133

Under 5

125

226

5–9

213

174

10–14

164

220

15–19

208

146

20–24

138

547

25–34

517

422

35–44

399

676

45–54

638

283

55–59

267

343

60–64

323

691

65–74

651

489

75–84

462

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,225	14.2%
18 and over	7,389	85.8%
65 and over	2,452	28.5%
Median age	50.4 years

Race & ethnicity

White 90.3%

Two or more races 5.4%

Black or African American 2.4%

Hispanic or Latino 1.9%

Group	Count	%
White	7,929	90.3%
Two or more races	470	5.4%
Black or African American	213	2.4%
Hispanic or Latino	168	1.9%

Household income

Under $10k 3.5%

$10k–$15k 2.0%

$15k–$25k 9.2%

$25k–$35k 6.2%

$35k–$50k 8.1%

$50k–$75k 15.4%

$75k–$100k 15.6%

$100k–$150k 16.5%

$150k–$200k 7.0%

$200k+ 16.6%

Range	% of households
Under $10k	3.5%
$10k–$15k	2.0%
$15k–$25k	9.2%
$25k–$35k	6.2%
$35k–$50k	8.1%
$50k–$75k	15.4%
$75k–$100k	15.6%
$100k–$150k	16.5%
$150k–$200k	7.0%
$200k+	16.6%
Median income	$85,767

Housing

Home values

Under $50k 3.5%

$50k–$100k 7.2%

$100k–$150k 4.0%

$150k–$200k 7.5%

$200k–$300k 16.8%

$300k–$500k 35.0%

$500k–$1M 20.7%

$1M+ 5.3%

Housing overview

Metric	Value
Median home value	$377,700
Median rent / month	$1,371
Owner occupied	73.8%
Renter occupied	26.2%
Vacant	14.2%
Single-family detached	50.0%
Large apartment buildings	9.2%
Mobile homes	19.5%
Median rooms	5.5
Avg household size (owned)	2.41

Year built

Era	%
2020 or later	0.5%
2010–2019	7.0%
2000–2009	24.9%
1990–1999	11.7%
1980–1989	12.3%
1970–1979	16.5%
1960–1969	7.8%
1950–1959	8.5%
1940–1949	4.9%
1939 or earlier	5.9%

Bedrooms

Size	% of units
No bedroom (studio)	1.6%
1 bedroom	13.6%
2 bedrooms	30.6%
3 bedrooms	35.2%
4 bedrooms	12.0%
5+ bedrooms	7.0%

Vehicles per household

Vehicles	% of households
No vehicle	3.8%
1 vehicle	31.4%
2 vehicles	38.3%
3 or more	26.5%

Heating fuel

Fuel type	%
Utility gas	37.6%
Electricity	12.9%
Propane / LP gas	7.4%
Fuel oil	37.0%
Wood	0.7%
Solar	3.0%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	1,838	48.3%
Cohabiting couple	392	10.3%
Male householder, no spouse	632	16.6%
Female householder, no spouse	941	24.7%
Households with children under 18	682	17.9%
Households with seniors (65+)	1,713	45.0%
Average household size	2.27

Marital status

Status	Male	Female
Never married	34.0%	19.0%
Married	47.0%	50.6%
Separated	2.1%	2.1%
Widowed	4.8%	9.1%
Divorced	12.0%	19.2%

Education

Less than 9th grade 3.5%

Some HS, no diploma 6.6%

HS graduate 40.8%

Some college, no degree 14.0%

Associate's degree 11.5%

Bachelor's degree 16.1%

Graduate / professional 7.4%

Metric	%
HS diploma or higher	89.9%
Bachelor's or higher	23.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	107	8.0%
Kindergarten	97	7.3%
Elementary school	616	46.2%
High school	301	22.6%
College / grad school	212	15.9%

Employment

Industry of employment

Education & healthcare 20.5%

Manufacturing 16.5%

Retail trade 13.9%

Professional & management 12.3%

Arts, food & hospitality 12.2%

Finance & real estate 6.8%

Public administration 5.8%

Construction 4.8%

Other services 3.0%

Wholesale trade 1.8%

Transportation & utilities 1.0%

Agriculture & mining 0.9%

Information 0.5%

Occupation

Category	%
Management, business & arts	37.2%
Service	21.2%
Sales & office	15.6%
Natural resources & construction	5.9%
Production & transportation	20.1%

Employment type

Type	%
Private sector	79.1%
Government	15.9%
Self-employed	5.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.7%
Carpool	6.5%
Public transit	0.8%
Walk	0.3%
Other means	2.2%
Avg commute (minutes)	26.4

Poverty

All people 7.3%

Under 18 years 3.2%

18 and over 7.9%

Married-couple families 3.6%

Female-led households 9.9%

Income support

Source	% of households
Social Security	48.1%
Retirement income	29.3%
Supplemental Security	6.3%
Cash public assistance	3.7%
Food stamps / SNAP	8.2%

Health indicators

Condition	%
High blood pressure	33.6%
High cholesterol	33.9%
Heart disease	6.4%
Stroke	2.9%
Asthma	10.2%
Arthritis	26.2%
Kidney disease	2.7%
Pulmonary disease	7.3%
Cancer	7.4%

Behavior / access	%
Binge drinking	17.8%
No physical activity	20.3%
Less than 7 hrs sleep	30.9%
Fair or poor health	13.2%
Poor mental health	14.8%
Poor physical health	10.8%
No health insurance	11.2%
Visited doctor (checkup)	73.1%
Visited dentist	69.3%
Cholesterol screening	90.6%
Teeth loss	13.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	619	8.4%

Disability	%
Any disability	16.0%
Under 18	2.4%
18–64 years	11.6%
65 and over	31.4%

Health insurance coverage

Type	%
Private insurance	74.6%
Public insurance	38.6%
Uninsured under 19	2.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	8,356	97.0%
Spanish	107	1.3%
Other Indo-European	57	0.7%
Asian & Pacific Islander	29	0.3%
Other languages	1	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	8,312	96.5%
Born in same state	8,260	95.9%
Born in different state	1,871	21.7%
Foreign born	52	0.6%
Naturalized citizen	302	3.5%
Not a US citizen	144	47.7%

Ancestry

Ancestry	Count	%
Italian	2,001	23.2%
French	1,724	20%
German	523	6.1%
Arab	285	3.3%

Ancestry	Count	%
Polish	26	0.3%
English	24	0.3%
Norwegian	17	0.2%

Technology access

Metric	% of households
Computer access	44.1%
Internet access	89.6%

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

Frequently asked questions

What ZIP codes does Seabrook, NH have?

Seabrook, NH has one ZIP code: 03874. Each ZIP code serves a distinct delivery area within the city and surrounding region.