Postal Codes

03257 ZIP Code

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ZIP code 03257 covers New London, New Hampshire, with a population of about 4,503 and a median household income of $89,750.

Population
4,503191 per square mile
Median age
45.36.6 points above the US average
Median household income
$89,7506% below the New Hampshire median
Poverty rate
2.7%9.7 points below the US average
Typical home value
$711,231up 28.5% in five years
Degree or higher
64.6%29.6 points above the US average
Homeownership
86.7%21.7 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
188

Where 03257 is

New London, New Hampshire — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population4,503
Median age45.3
Family households65.3%
Born outside the US6.5%
Speaks a language other than English at home3.8%
White (non-Hispanic)90.4%
Black (non-Hispanic)1.2%
Asian (non-Hispanic)2.1%
Hispanic or Latino2.1%
Veterans8.5%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$89,750
Income per person$50,030
Poverty rate2.7%
Households on SNAP or cash assistance1.8%

Household income distribution

Under $10k1.7%
$10–15k2.1%
$15–20k2.7%
$20–25k2.3%
$25–30k6.8%
$30–35k1.7%
$35–40k3.8%
$40–45k1.3%
$45–50k2.0%
$50–60k4.9%
$60–75k7.9%
$75–100k14.3%
$100–125k10.3%
$125–150k6.9%
$150–200k11.9%
$200k or more19.5%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed2,390
Mean adjusted gross income$198,360
Returns declaring $200,000 or more21.8%
Returns, under $25k18.4%
Returns, $25k–$50k13.4%
Returns, $50k–$75k11.3%
Returns, $75k–$100k9.2%
Returns, $100k–$200k25.9%
Returns, $200k or more21.8%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$469,000
Rent as a share of household income29.6%
Owner-occupied86.7%
Vacant homes32%
Median year built1979

What the homes are

Detached house77.3%
Attached house6.8%
2 to 4 units6.3%
5 to 19 units1.4%
20 or more units8.3%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$711,231as of 2026-07
Typical home value, 1 yearup 1.8%
Typical home value, 5 yearsup 28.5%
Typical home value, 10 yearsup 91.2%
Typical home value since 2000
200020132026$711,231$202,728

$202,728 in 2000 to $711,231 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.8%
Bachelor's degree or higher64.6%
High school diploma or higher98.8%
Works from home15.4%
Drives to work alone71.1%
Takes public transport0%
Commutes 45 minutes or more22.8%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity27.5% 5.9 pts below the national average of 33.4%
Diagnosed diabetes8.4% 3.6 pts below the national average of 12%
Currently smokes5.9% 7.3 pts below the national average of 13.2%
High blood pressure32.2% 1.9 pts below the national average of 34.1%
Fair or poor general health11% 9.3 pts below the national average of 20.3%
No health insurance (18–64)4.1% 7.2 pts below the national average of 11.3%
Depression21.9% same as the national average of 21.9%
No leisure-time physical activity15.7% 9.7 pts below the national average of 25.4%
Arthritis29.8% 4.7 pts above the national average of 25.1%
Binge drinking13.5% 2.5 pts below the national average of 16%
Taking blood pressure medication80.9% 6.2 pts above the national average of 74.7%
Cancer (non-skin)12.6% 4.9 pts above the national average of 7.7%
Current asthma10.6% same as the national average of 10.4%
Coronary heart disease6.3% same as the national average of 6.2%
Routine check-up in past year82.6% 5.9 pts above the national average of 76.7%
Cholesterol screening90.5% 4.6 pts above the national average of 85.9%
Cognitive disability9.8% 5 pts below the national average of 14.8%
Colorectal screening77.4% 13.1 pts above the national average of 64.3%
COPD5.2% 1.4 pts below the national average of 6.6%
Visited a dentist78% 16.7 pts above the national average of 61.3%
Any disability25.3% 5.4 pts below the national average of 30.7%
Lacks emotional support17.9% 6.9 pts below the national average of 24.8%
Food insecurity5.1% 12 pts below the national average of 17.1%
Received food stamps3.2% 11.1 pts below the national average of 14.3%
Hearing disability7.9% 1.2 pts above the national average of 6.7%
High cholesterol34.5% 1.7 pts below the national average of 36.2%
Housing insecurity4.7% 9.1 pts below the national average of 13.8%
Independent living disability5.6% 2.8 pts below the national average of 8.4%
Lacks transport4% 5.2 pts below the national average of 9.2%
Loneliness27.8% 6.6 pts below the national average of 34.4%
Mammography use82.8% 6.9 pts above the national average of 75.9%
Poor mental health (14+ days)13.1% 3.7 pts below the national average of 16.8%
Mobility disability10.8% 3.2 pts below the national average of 14%
Poor physical health (14+ days)9.9% 3.6 pts below the national average of 13.5%
Self-care disability2.3% 1.7 pts below the national average of 4%
Utility shut-off threat3.1% 5.7 pts below the national average of 8.8%
Sleeps under 7 hours28.5% 7.9 pts below the national average of 36.4%
Stroke3% same as the national average of 3.4%
All natural teeth lost4.6% 8.4 pts below the national average of 13%
Vision disability3% 2.6 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments188
People employed2,216
Annual payroll$119,121,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 12.8% of US census tracts
FEMA ratingVery Low to Relatively Low across the 4 census tracts this ZIP code covers
Expected annual loss14.8 out of 100
Community resilience72.8 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Ice storm82.1Relatively Moderate at its worst in this ZIP code
Landslide79.9Relatively Moderate at its worst in this ZIP code
Hurricane70Relatively Low at its worst in this ZIP code
Lightning69.1Relatively High at its worst in this ZIP code
Winter weather61.9Relatively Moderate at its worst in this ZIP code
Wildfire58.5Very Low at its worst in this ZIP code
Earthquake42.2Relatively Low at its worst in this ZIP code
Strong wind38.1Relatively Moderate at its worst in this ZIP code
Hail34.3Relatively Low at its worst in this ZIP code
Tornado34Relatively Low at its worst in this ZIP code
Cold wave31.2Relatively Moderate at its worst in this ZIP code
River flooding26.7Relatively High at its worst in this ZIP code
Heat wave23.5Relatively Low at its worst in this ZIP code
Avalanche13.3Very Low at its worst in this ZIP code
Compared with New Hampshire and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPNew HampshireUnited States
Median household income$89,750$95,628$78,538
Income per person$50,030$50,867$43,289
Poverty rate2.7%7.2%12.4%
Median home value$469,000$367,200$303,400
Median gross rent$1,423$1,348
Homeownership86.7%72.5%65%
Bachelor's degree or higher64.6%39.8%35%
Unemployment rate2.8%3.4%5.2%
Works from home15.4%15.1%13.5%
Born outside the US6.5%6.2%13.9%
Median age45.343.238.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationMT SUNAPEE, NH US11.8 km away
Rain in a year48 in
Snow in a year85 in

Average high and low by month

January28.7°F / 12.9°F3.34 in rain, 18.4 in snow
February31.5°F / 14.6°F3.07 in rain, 24.6 in snow
March39.7°F / 22°F3.74 in rain, 12.3 in snow
April53.4°F / 32.7°F4.21 in rain, 4.7 in snow
May66.4°F / 44.2°F3.91 in rain
June74.5°F / 54°F4.41 in rain
July78.9°F / 59.2°F4.42 in rain
August77.3°F / 57.4°F3.66 in rain
September70.2°F / 50.1°F4.18 in rain
October56.8°F / 38.6°F5.52 in rain, 1.2 in snow
November45°F / 29°F3.73 in rain, 3.6 in snow
December34°F / 19.9°F4.27 in rain, 20.6 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarket93% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Kearsarge Regional School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability14more vulnerable than 14% of US census tracts
Socioeconomic status12more vulnerable than 12% of US census tracts
Household characteristics18more vulnerable than 18% of US census tracts
Racial and ethnic minority status9more vulnerable than 9% of US census tracts
Housing type and transport42more vulnerable than 42% of US census tracts
Walkability7.7 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

03233 Elkins, NH4 km away
03287 Wilmot, NH6.8 km away
03751 Georges Mills, NH6.9 km away
03260 North Sutton, NH6.9 km away
03782 Sunapee, NH9.4 km away
03284 Springfield, NH10.1 km away
03255 Newbury, NH10.5 km away
03754 Guild, NH13 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Merrimack County96.8% of this ZIP code's land area
Sullivan County3.2% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area23.55 sq mi
Water area3.09 sq mi
Population density191 people per sq mi
Latitude, longitude43.4145, -71.9857

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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