03865 ZIP Code — Plaistow, NH

Rockingham County, New Hampshire

ZIP code 03865 is located in Plaistow, New Hampshire, within Rockingham County. It covers approximately 10.59 square miles and serves a population of 7,843 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.

About ZIP code 03865

The housing stock consists of a mix of housing types. Most homes were built in the 1980s, giving the area an established character. Median home value is $370,300. Owner-occupancy is high at 84%, well above the national average.

Median household income is $103,788. The poverty rate of 4% is below the national average. 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 29 minutes is near the national average.

Educational attainment is near the national average, with 35% of residents holding a bachelor's degree or higher.

Overall, ZIP code 03865 reflects a community defined by high homeownership and a significant Social Security-dependent population.

7,843

population

10.59

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

03865 ZIP code map

Cities in ZIP code 03865

Below are the cities the US Postal Service accepts for ZIP code 03865. Using any city not on this list may result in mail delivery delays.

City	Status
Plaistow	Preferred

Nearby ZIP codes

03858 Newton (3 mi) 03826 East Hampstead (3.3 mi) 03811 Atkinson (3.4 mi) 01830 Haverhill (3.8 mi) 01832 Haverhill (4 mi) 01860 Merrimac (4.2 mi) 03848 Kingston (5 mi) 03841 Hampstead (5 mi) 03819 Danville (6 mi) 01835 Haverhill (6.2 mi) 01913 Amesbury (7.3 mi) 01985 West Newbury (7.3 mi)

Demographics updated 05/2026

Population
Total population	7,843
Population density	741 / sq mi
State FIPS	33
County FIPS	015

Geography
Land area	10.59 sq mi
Water area	0.01 sq mi
Latitude	42.8428
Longitude	-71.0946
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	22.0%	23.5%	31.0%
$50k – $100k	37.9%	29.1%	31.2%
$100k – $200k	33.6%	32.8%	28.1%
Over $200k	6.6%	14.6%	9.7%

Demographics & statistics

7,843

Population

741

People per sq mi

42.3

Median age

$103,788

Median household income

$52,551

Per capita income

$370,300

Median home value

$1,524

Median monthly rent

83.5%

Home ownership

4.4%

Poverty rate

2.6%

Unemployment

2,753

Housing units

35.0%

Bachelor's or higher

Age distribution

Male Female

263

Under 5

286

212

5–9

230

221

10–14

240

163

15–19

178

175

20–24

191

457

25–34

498

522

35–44

568

533

45–54

580

278

55–59

303

296

60–64

322

447

65–74

486

75–84

106

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,637	20.9%
18 and over	6,206	79.1%
65 and over	1,327	16.9%
Median age	42.3 years

Race & ethnicity

White 79%

Hispanic or Latino 8.7%

Two or more races 7%

Other race 4.2%

Black or African American 0.7%

Asian 0.4%

Group	Count	%
White	6,787	79%
Hispanic or Latino	749	8.7%
Two or more races	602	7%
Other race	359	4.2%
Black or African American	60	0.7%
Asian	35	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	22.0%	23.5%	31.0%
$50k – $100k	37.9%	29.1%	31.2%
$100k – $200k	33.6%	32.8%	28.1%
Over $200k	6.6%	14.6%	9.7%

Under $10k 4.1%

$10k–$15k 1.8%

$15k–$25k 1.7%

$25k–$35k 4.0%

$35k–$50k 7.1%

$50k–$75k 9.8%

$75k–$100k 19.2%

$100k–$150k 22.8%

$150k–$200k 13.7%

$200k+ 15.6%

Range	% of households
Under $10k	4.1%
$10k–$15k	1.8%
$15k–$25k	1.7%
$25k–$35k	4.0%
$35k–$50k	7.1%
$50k–$75k	9.8%
$75k–$100k	19.2%
$100k–$150k	22.8%
$150k–$200k	13.7%
$200k+	15.6%
Median income	$103,788

Housing

Home values

Under $50k 1.5%

$50k–$100k 0.4%

$100k–$150k 1.9%

$150k–$200k 4.3%

$200k–$300k 21.5%

$300k–$500k 51.1%

$500k–$1M 19.3%

Housing overview

Metric	Value
Median home value	$370,300
Median rent / month	$1,524
Owner occupied	83.5%
Renter occupied	16.5%
Vacant	2.3%
Single-family detached	63.8%
Large apartment buildings	3.0%
Mobile homes	1.5%
Median rooms	6.2
Avg household size (owned)	2.52

Year built

Era	%
2020 or later	0.4%
2010–2019	3.7%
2000–2009	3.4%
1990–1999	12.2%
1980–1989	27.4%
1970–1979	12.0%
1960–1969	16.0%
1950–1959	8.2%
1940–1949	1.6%
1939 or earlier	15.0%

Bedrooms

Size	% of units
No bedroom (studio)	1.2%
1 bedroom	9.7%
2 bedrooms	28.4%
3 bedrooms	41.3%
4 bedrooms	15.9%
5+ bedrooms	3.6%

Vehicles per household

Vehicles	% of households
No vehicle	1.2%
1 vehicle	36.3%
2 vehicles	40.1%
3 or more	22.3%

Heating fuel

Fuel type	%
Utility gas	35.1%
Electricity	4.0%
Propane / LP gas	9.7%
Fuel oil	48.1%
Wood	3.1%

Households & families

Household type	Count	%
Married-couple family	1,669	52.0%
Cohabiting couple	219	6.8%
Male householder, no spouse	513	16.0%
Female householder, no spouse	806	25.1%
Households with children under 18	1,100	34.3%
Households with seniors (65+)	1,140	35.5%
Average household size	2.44

Marital status

Status	Male	Female
Never married	26.7%	24.4%
Married	56.1%	51.6%
Separated	4.5%	0.4%
Widowed	2.3%	8.4%
Divorced	10.4%	15.1%

Education

Less than 9th grade 0.4%

Some HS, no diploma 1.0%

HS graduate 36.4%

Some college, no degree 13.2%

Associate's degree 14.0%

Bachelor's degree 19.9%

Graduate / professional 15.1%

Metric	%
HS diploma or higher	98.6%
Bachelor's or higher	35.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	73	5.1%
Kindergarten	25	1.7%
Elementary school	745	51.7%
High school	268	18.6%
College / grad school	330	22.9%

Employment

Industry of employment

Education & healthcare 27.8%

Construction 13.7%

Professional & management 12.4%

Manufacturing 11.7%

Retail trade 7.1%

Finance & real estate 7.1%

Transportation & utilities 4.9%

Public administration 4.8%

Arts, food & hospitality 3.6%

Other services 3.1%

Wholesale trade 2.9%

Information 0.8%

Occupation

Category	%
Management, business & arts	45.9%
Service	7.7%
Sales & office	24.4%
Natural resources & construction	14.6%
Production & transportation	7.4%

Employment type

Type	%
Private sector	76.9%
Government	17.2%
Self-employed	5.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.4%
Carpool	4.4%
Public transit	2.1%
Walk	0.5%
Work from home	13.6%
Other means	1.1%
Avg commute (minutes)	28.7

Poverty

All people 4.4%

Under 18 years 2.8%

18 and over 4.7%

Married-couple families 2.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	36.6%
Retirement income	22.6%
Supplemental Security	0.3%
Cash public assistance	1.7%
Food stamps / SNAP	2.8%

Health indicators

Condition	%
Obesity	31.0%
High blood pressure	30.3%
High cholesterol	31.2%
Diabetes	8.0%
Heart disease	5.2%
Stroke	2.4%
Asthma	10.0%
Arthritis	23.2%
Kidney disease	2.3%
Pulmonary disease	5.9%
Cancer	6.5%

Behavior / access	%
Smoking	16.5%
Binge drinking	19.2%
No physical activity	17.8%
Less than 7 hrs sleep	30.8%
Depression	20.5%
Fair or poor health	11.0%
Poor mental health	14.6%
Poor physical health	9.5%
No health insurance	9.8%
Visited doctor (checkup)	72.3%
Visited dentist	72.3%
Cholesterol screening	91.0%
Teeth loss	10.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	485	7.8%

Disability	%
Any disability	11.8%
Under 18	10.3%
18–64 years	7.9%
65 and over	28.1%

Health insurance coverage

Type	%
Private insurance	86.5%
Public insurance	21.1%
No insurance	4.9%
Uninsured under 19	2.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,294	93.0%
Spanish	20	0.3%
Other Indo-European	19	0.3%
Asian & Pacific Islander	1	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	7,576	96.6%
Born in same state	7,446	94.9%
Born in different state	1,306	16.7%
Foreign born	130	1.7%
Naturalized citizen	267	3.4%
Not a US citizen	192	71.9%

Ancestry

Ancestry	Count	%
Italian	2,241	28.6%
French	1,095	14%
German	641	8.2%

Ancestry	Count	%
Arab	277	3.5%
Norwegian	189	2.4%
Irish	14	0.2%

Technology access

Metric	% of households
Computer access	40.9%
Internet access	95.6%

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

Frequently asked questions about ZIP code 03865

What city is ZIP code 03865 in?

ZIP code 03865 is primarily assigned to Plaistow, New Hampshire.

What county is ZIP code 03865 in?

ZIP code 03865 falls within Rockingham County, New Hampshire.

Is ZIP code 03865 mostly owner-occupied?

84% of occupied units in ZIP code 03865 are owner-occupied, well above the national average.

Does ZIP code 03865 have a large retiree population?

37% of households in ZIP code 03865 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 03865?

The median home value in ZIP code 03865 is $370,300.

What is the median household income in ZIP code 03865?

The median household income in ZIP code 03865 is $103,788, above the national median of ~$75,000.

What timezone is ZIP code 03865 in?

ZIP code 03865 observes the EST timezone.