03855 ZIP Code — New Durham, NH

Strafford County, New Hampshire

ZIP code 03855 is located in New Durham, New Hampshire, within Strafford County. It covers approximately 41.22 square miles and serves a population of 2,711 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.

About ZIP code 03855

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $284,400. Owner-occupancy is high at 91%, well above the national average.

Median household income is $97,000. 36% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with retail trade as the leading industry. An above-average commute of 36 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 32% of residents holding a bachelor's degree or higher.

Overall, ZIP code 03855 reflects a community defined by high homeownership and a significant Social Security-dependent population.

2,711

population

41.22

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

03855 ZIP code map

Cities in ZIP code 03855

Below are the cities the US Postal Service accepts for ZIP code 03855. Using any city not on this list may result in mail delivery delays.

City	Status
New Durham	Preferred

Nearby ZIP codes

03809 Alton (4.5 mi) 03887 Union (4.6 mi) 03851 Milton (6.3 mi) 03810 Alton Bay (7.1 mi) 03835 Farmington (7.9 mi) 03225 Center Barnstead (8.6 mi) 03837 Gilmanton Iron Works (8.7 mi) 03894 Wolfeboro (8.9 mi) 03852 Milton Mills (9 mi) 03872 Sanbornville (9.9 mi) 03218 Barnstead (11.8 mi) 04001 Acton (12.2 mi)

Demographics updated 05/2026

Population
Total population	2,711
Population density	66 / sq mi
State FIPS	33
County FIPS	017

Geography
Land area	41.22 sq mi
Water area	2.62 sq mi
Latitude	43.4643
Longitude	-71.1444
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	25.1%	32.7%	31.0%
$50k – $100k	33.0%	33.3%	31.2%
$100k – $200k	33.6%	26.7%	28.1%
Over $200k	8.3%	7.4%	9.7%

Demographics & statistics

2,711

Population

People per sq mi

43.9

Median age

$97,000

Median household income

$42,989

Per capita income

$284,400

Median home value

$1,388

Median monthly rent

90.7%

Home ownership

8.6%

Poverty rate

7.9%

Unemployment

1,486

Housing units

31.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

101

20–24

153

25–34

148

184

35–44

178

238

45–54

230

105

55–59

101

60–64

197

65–74

190

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	496	18.3%
18 and over	2,215	81.7%
65 and over	473	17.4%
Median age	43.9 years

Race & ethnicity

White 93.7%

Two or more races 3.5%

Hispanic or Latino 1.6%

American Indian / Alaska Native 1%

Asian 0.2%

Group	Count	%
White	2,582	93.7%
Two or more races	97	3.5%
Hispanic or Latino	45	1.6%
American Indian / Alaska Native	27	1%
Asian	5	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.1%	32.7%	31.0%
$50k – $100k	33.0%	33.3%	31.2%
$100k – $200k	33.6%	26.7%	28.1%
Over $200k	8.3%	7.4%	9.7%

Under $10k 4.5%

$10k–$15k 2.0%

$15k–$25k 2.8%

$25k–$35k 5.8%

$35k–$50k 4.1%

$50k–$75k 13.5%

$75k–$100k 18.1%

$100k–$150k 19.5%

$150k–$200k 16.0%

$200k+ 13.6%

Range	% of households
Under $10k	4.5%
$10k–$15k	2.0%
$15k–$25k	2.8%
$25k–$35k	5.8%
$35k–$50k	4.1%
$50k–$75k	13.5%
$75k–$100k	18.1%
$100k–$150k	19.5%
$150k–$200k	16.0%
$200k+	13.6%
Median income	$97,000

Housing

Home values

Under $50k 2.7%

$50k–$100k 0.7%

$100k–$150k 8.8%

$150k–$200k 5.9%

$200k–$300k 39.8%

$300k–$500k 33.3%

$500k–$1M 8.2%

$1M+ 0.5%

Housing overview

Metric	Value
Median home value	$284,400
Median rent / month	$1,388
Owner occupied	90.7%
Renter occupied	9.3%
Vacant	36.4%
Single-family detached	93.5%
Large apartment buildings	0.0%
Mobile homes	4.4%
Median rooms	5.4
Avg household size (owned)	2.81

Year built

Era	%
2020 or later	0.0%
2010–2019	5.4%
2000–2009	16.2%
1990–1999	12.5%
1980–1989	22.7%
1970–1979	14.2%
1960–1969	9.2%
1950–1959	6.9%
1940–1949	4.6%
1939 or earlier	8.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	7.0%
2 bedrooms	32.2%
3 bedrooms	46.0%
4 bedrooms	11.8%
5+ bedrooms	3.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.7%
1 vehicle	17.8%
2 vehicles	39.7%
3 or more	41.7%

Heating fuel

Fuel type	%
Utility gas	0.9%
Electricity	8.1%
Propane / LP gas	21.8%
Fuel oil	52.9%
Wood	12.7%

Households & families

Household type	Count	%
Married-couple family	632	62.9%
Cohabiting couple	66	6.6%
Male householder, no spouse	183	18.2%
Female householder, no spouse	123	12.3%
Households with children under 18	263	26.2%
Households with seniors (65+)	332	33.1%
Average household size	2.70

Marital status

Status	Male	Female
Never married	37.0%	30.6%
Married	57.3%	53.3%
Separated	0.0%	0.4%
Widowed	0.5%	6.1%
Divorced	5.2%	9.5%

Education

Less than 9th grade 3.4%

Some HS, no diploma 2.4%

HS graduate 29.9%

Some college, no degree 19.7%

Associate's degree 13.0%

Bachelor's degree 22.5%

Graduate / professional 9.1%

Metric	%
HS diploma or higher	94.2%
Bachelor's or higher	31.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	11	2.4%
Kindergarten	49	10.6%
Elementary school	126	27.2%
High school	204	44.0%
College / grad school	74	15.9%

Employment

Industry of employment

Retail trade 20.8%

Education & healthcare 19.1%

Manufacturing 14.5%

Professional & management 8.5%

Construction 7.6%

Public administration 7.6%

Finance & real estate 6.8%

Wholesale trade 4.1%

Other services 3.9%

Transportation & utilities 3.8%

Arts, food & hospitality 1.9%

Information 0.8%

Agriculture & mining 0.6%

Occupation

Category	%
Management, business & arts	33.9%
Service	12.4%
Sales & office	26.1%
Natural resources & construction	12.3%
Production & transportation	15.2%

Employment type

Type	%
Private sector	74.7%
Government	20.7%
Self-employed	4.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	85.0%
Carpool	6.5%
Public transit	0.0%
Walk	0.3%
Work from home	8.2%
Other means	0.0%
Avg commute (minutes)	36.3

Poverty

All people 8.6%

Under 18 years 7.0%

18 and over 8.9%

Married-couple families 1.3%

Female-led households 27.3%

Income support

Source	% of households
Social Security	35.6%
Retirement income	24.2%
Supplemental Security	5.1%
Cash public assistance	1.3%
Food stamps / SNAP	5.6%

Health indicators

Condition	%
Obesity	30.9%
High blood pressure	31.0%
High cholesterol	33.3%
Diabetes	9.0%
Heart disease	5.9%
Stroke	2.6%
Asthma	10.6%
Arthritis	24.7%
Kidney disease	2.5%
Pulmonary disease	6.5%
Cancer	6.7%

Behavior / access	%
Smoking	17.7%
Binge drinking	18.5%
No physical activity	20.6%
Less than 7 hrs sleep	31.1%
Depression	25.5%
Fair or poor health	12.3%
Poor mental health	15.7%
Poor physical health	10.6%
No health insurance	10.4%
Visited doctor (checkup)	72.4%
Visited dentist	67.9%
Cholesterol screening	91.4%
Teeth loss	11.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	187	8.4%

Disability	%
Any disability	11.1%
Under 18	0.0%
18–64 years	11.7%
65 and over	20.5%

Health insurance coverage

Type	%
Private insurance	76.3%
Public insurance	27.7%
No insurance	6.6%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,527	93.2%
Spanish	4	0.2%
Other Indo-European	0	0.0%
Asian & Pacific Islander	4	0.2%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,701	99.6%
Born in same state	2,681	98.9%
Born in different state	1,539	56.8%
Foreign born	20	0.7%
Naturalized citizen	10	0.4%
Not a US citizen	10	100.0%

Ancestry

Ancestry	Count	%
Italian	565	20.8%
French	474	17.5%
German	291	10.7%
Arab	118	4.4%

Ancestry	Count	%
Dutch	30	1.1%
Irish	19	0.7%
English	19	0.7%
Norwegian	10	0.4%

Technology access

Metric	% of households
Computer access	37.0%
Internet access	96.5%

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

Frequently asked questions about ZIP code 03855

What city is ZIP code 03855 in?

ZIP code 03855 is primarily assigned to New Durham, New Hampshire.

What county is ZIP code 03855 in?

ZIP code 03855 falls within Strafford County, New Hampshire.

Is ZIP code 03855 mostly owner-occupied?

91% of occupied units in ZIP code 03855 are owner-occupied, well above the national average.

Does ZIP code 03855 have a large retiree population?

36% of households in ZIP code 03855 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 03855?

ZIP code 03855 has an estimated population of 2,711 residents, with a density of 66 people per square mile.

What is the median household income in ZIP code 03855?

The median household income in ZIP code 03855 is $97,000, above the national median of ~$75,000.

What timezone is ZIP code 03855 in?

ZIP code 03855 observes the EST timezone.