03251 ZIP Code — Lincoln, NH

Grafton County, New Hampshire

ZIP code 03251 is located in Lincoln, New Hampshire, within Grafton County. It covers approximately 66.34 square miles and serves a population of 1,474 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.

About ZIP code 03251

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 $267,500. Owner-occupancy sits near the national average at 72%.

The gap between median ($63,813) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 5% is below the national average. 38% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with arts, entertainment, and food service as the leading industry. The average commute of 21 minutes is near the national average.

Educational attainment is near the national average, with 39% of residents holding a bachelor's degree or higher.

16% of residents lack health insurance, above the national average.

1,474

population

66.34

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

03251 ZIP code map

Cities in ZIP code 03251

Below are the cities the US Postal Service accepts for ZIP code 03251. Using any city not on this list may result in mail delivery delays.

City	Status
Lincoln	Preferred

Nearby ZIP codes

03580 Franconia (7.3 mi) 03223 Campton (8 mi) 03262 North Woodstock (8.6 mi) 03574 Bethlehem (11.3 mi) 03812 Bartlett (15.2 mi) 03785 Woodsville (15.6 mi) 03598 Whitefield (16.5 mi) 03585 Lisbon (17.4 mi) 03279 Warren (17.7 mi) 03259 North Sandwich (17.9 mi) 03227 Center Sandwich (18.9 mi) 03818 Conway (19.3 mi)

Demographics updated 06/2026

Population
Total population	1,474
Population density	22 / sq mi
State FIPS	33
County FIPS	009

Geography
Land area	66.34 sq mi
Water area	0.35 sq mi
Latitude	44.0895
Longitude	-71.5854
Timezone	Eastern (ET)
Area code	603

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	47.4%	37.5%	31.0%
$50k – $100k	40.6%	32.1%	31.2%
$100k – $200k	10.3%	21.7%	28.1%
Over $200k	1.7%	8.6%	9.7%

Demographics & statistics

1,474

Population

People per sq mi

48.2

Median age

$63,813

Median household income

$42,480

Per capita income

$267,500

Median home value

$1,103

Median monthly rent

72.3%

Home ownership

5.0%

Poverty rate

1.7%

Unemployment

2,627

Housing units

38.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

170

65–74

133

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	274	18.6%
18 and over	1,200	81.4%
65 and over	412	28.0%
Median age	48.2 years

Race & ethnicity

White 83%

Asian 14.5%

Black or African American 1.3%

Two or more races 1.2%

Group	Count	%
White	1,224	83%
Asian	213	14.5%
Black or African American	19	1.3%
Two or more races	18	1.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	47.4%	37.5%	31.0%
$50k – $100k	40.6%	32.1%	31.2%
$100k – $200k	10.3%	21.7%	28.1%
Over $200k	1.7%	8.6%	9.7%

Under $10k 0.9%

$10k–$15k 4.7%

$15k–$25k 13.6%

$25k–$35k 3.8%

$35k–$50k 18.2%

$50k–$75k 17.5%

$75k–$100k 6.3%

$100k–$150k 20.0%

$150k–$200k 7.2%

$200k+ 7.8%

Range	% of households
Under $10k	0.9%
$10k–$15k	4.7%
$15k–$25k	13.6%
$25k–$35k	3.8%
$35k–$50k	18.2%
$50k–$75k	17.5%
$75k–$100k	6.3%
$100k–$150k	20.0%
$150k–$200k	7.2%
$200k+	7.8%
Median income	$63,813

Housing

Home values

Under $50k 4.5%

$50k–$100k 1.7%

$100k–$150k 6.1%

$150k–$200k 5.8%

$200k–$300k 43.1%

$300k–$500k 30.7%

$500k–$1M 8.0%

Housing overview

Metric	Value
Median home value	$267,500
Median rent / month	$1,103
Owner occupied	72.3%
Renter occupied	27.7%
Vacant	77.2%
Single-family detached	18.8%
Large apartment buildings	5.9%
Mobile homes	3.0%
Median rooms	5.2
Avg household size (owned)	2.34

Year built

Era	%
2020 or later	0.0%
2010–2019	1.9%
2000–2009	13.7%
1990–1999	6.4%
1980–1989	58.0%
1970–1979	7.3%
1960–1969	3.0%
1950–1959	0.7%
1940–1949	1.1%
1939 or earlier	7.9%

Bedrooms

Size	% of units
No bedroom (studio)	2.0%
1 bedroom	9.5%
2 bedrooms	28.1%
3 bedrooms	38.9%
4 bedrooms	16.8%
5+ bedrooms	4.7%

Vehicles per household

Vehicles	% of households
No vehicle	3.3%
1 vehicle	38.0%
2 vehicles	45.2%
3 or more	13.5%

Heating fuel

Fuel type	%
Utility gas	4.9%
Electricity	22.2%
Propane / LP gas	32.7%
Fuel oil	35.5%
Wood	2.7%
No fuel used	1.6%

Households & families

Household type	Count	%
Married-couple family	298	46.6%
Cohabiting couple	125	19.6%
Male householder, no spouse	114	17.8%
Female householder, no spouse	102	16.0%
Households with children under 18	204	31.9%
Households with seniors (65+)	250	39.1%
Average household size	2.31

Marital status

Status	Male	Female
Never married	39.5%	24.8%
Married	49.5%	58.2%
Separated	5.8%	0.0%
Widowed	0.0%	4.0%
Divorced	5.2%	13.0%

Education

Less than 9th grade 0.4%

Some HS, no diploma 11.5%

HS graduate 17.6%

Some college, no degree 28.5%

Associate's degree 3.1%

Bachelor's degree 28.9%

Graduate / professional 10.0%

Metric	%
HS diploma or higher	88.1%
Bachelor's or higher	38.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	23	8.4%
Kindergarten	3	1.1%
Elementary school	146	53.5%
High school	66	24.2%
College / grad school	35	12.8%

Employment

Industry of employment

Arts, food & hospitality 42.9%

Education & healthcare 12.8%

Retail trade 9.4%

Finance & real estate 9.2%

Transportation & utilities 6.1%

Construction 5.7%

Professional & management 5.3%

Manufacturing 3.5%

Other services 2.2%

Agriculture & mining 1.4%

Information 0.9%

Wholesale trade 0.7%

Occupation

Category	%
Management, business & arts	47.5%
Service	19.7%
Sales & office	14.1%
Natural resources & construction	6.0%
Production & transportation	12.8%

Employment type

Type	%
Private sector	88.9%
Government	3.5%
Self-employed	6.5%
Unpaid family workers	1.1%

Commute

Method	%
Drive alone	52.2%
Carpool	16.3%
Public transit	0.0%
Walk	14.9%
Work from home	13.9%
Other means	2.6%
Avg commute (minutes)	20.9

Poverty

All people 5.0%

Under 18 years 0.0%

18 and over 6.2%

Married-couple families 2.3%

Female-led households 11.1%

Income support

Source	% of households
Social Security	38.2%
Retirement income	27.1%
Supplemental Security	1.1%
Cash public assistance	3.0%
Food stamps / SNAP	6.3%

Health indicators

Condition	%
Obesity	32.2%
High blood pressure	30.5%
High cholesterol	32.3%
Diabetes	9.5%
Heart disease	7.1%
Stroke	3.0%
Asthma	10.3%
Arthritis	27.9%
Kidney disease	2.9%
Pulmonary disease	6.7%
Cancer	8.1%

Behavior / access	%
Smoking	13.9%
Binge drinking	15.4%
No physical activity	17.5%
Less than 7 hrs sleep	29.3%
Depression	22.1%
Fair or poor health	12.0%
Poor mental health	13.3%
Poor physical health	10.1%
No health insurance	9.7%
Visited doctor (checkup)	75.3%
Visited dentist	68.7%
Cholesterol screening	92.5%
Teeth loss	10.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	89	7.4%

Disability	%
Any disability	4.7%
Under 18	0.0%
18–64 years	6.6%
65 and over	4.1%

Health insurance coverage

Type	%
Private insurance	57.0%
Public insurance	45.3%
No insurance	15.8%
Uninsured under 19	28.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,418	96.2%
Spanish	115	8.1%
Other Indo-European	0	0.0%
Asian & Pacific Islander	5	0.4%
Other languages	110	7.8%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,254	85.1%
Born in same state	1,254	85.1%
Born in different state	457	31.0%
Foreign born	0	0.0%
Naturalized citizen	220	14.9%
Not a US citizen	160	72.7%

Ancestry

Ancestry	Count	%
Italian	232	15.7%
French	223	15.1%
Arab	51	3.5%

Ancestry	Count	%
German	45	3.1%
English	18	1.2%
Polish	14	0.9%

Technology access

Metric	% of households
Computer access	43.4%
Internet access	94.5%

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

Frequently asked questions about ZIP code 03251

What city is ZIP code 03251 in?

ZIP code 03251 is primarily assigned to Lincoln, New Hampshire.

What county is ZIP code 03251 in?

ZIP code 03251 falls within Grafton County, New Hampshire.

Does ZIP code 03251 have an older population?

28% of residents in ZIP code 03251 are 65 or older, above the national average of ~17%.

Does ZIP code 03251 have a large retiree population?

38% of households in ZIP code 03251 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 03251?

ZIP code 03251 has an estimated population of 1,474 residents, with a density of 22 people per square mile.

What is the median household income in ZIP code 03251?

The median household income in ZIP code 03251 is $63,813, below the national median of ~$75,000.

What timezone is ZIP code 03251 in?

ZIP code 03251 observes the EST timezone.