Postal Codes

03431 ZIP Code

Advertisement

English Español

ZIP code 03431 covers Keene, New Hampshire, with a population of about 25,035 and a median household income of $78,196.

Population
25,035418 per square mile
Median age
36.81.9 points below the US average
Median household income
$78,19618% below the New Hampshire median
Poverty rate
9.8%2.6 points below the US average
Typical home value
$359,459up 45.3% in five years
Median rent
$1,27910% below the New Hampshire median
Degree or higher
41.4%6.4 points above the US average
Homeownership
51.9%13.1 points below the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
858

Where 03431 is

Keene, 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

Population25,035
Median age36.8
Family households51.4%
Born outside the US3.6%
Speaks a language other than English at home4.2%
White (non-Hispanic)92%
Black (non-Hispanic)1.5%
Asian (non-Hispanic)0.5%
Hispanic or Latino2.2%
Veterans8%
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$78,196
Income per person$39,574
Poverty rate9.8%
Households on SNAP or cash assistance9.2%

Household income distribution

Under $10k2.6%
$10–15k5.2%
$15–20k4.3%
$20–25k1.6%
$25–30k1.7%
$30–35k5.5%
$35–40k3.1%
$40–45k4.5%
$45–50k3.5%
$50–60k7.6%
$60–75k8.4%
$75–100k17.8%
$100–125k9.5%
$125–150k8.6%
$150–200k8.9%
$200k or more7.0%

Income as declared to the IRS

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

Tax returns filed12,010
Mean adjusted gross income$81,577
Returns declaring $200,000 or more6.1%
Returns, under $25k23.8%
Returns, $25k–$50k25.9%
Returns, $50k–$75k17.5%
Returns, $75k–$100k9.7%
Returns, $100k–$200k17.0%
Returns, $200k or more6.1%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$233,900
Median gross rent$1,279
Rent as a share of household income27.8%
Owner-occupied51.9%
Vacant homes9.9%
Median year built1960

What the homes are

Detached house49.6%
Attached house3.8%
2 to 4 units19%
5 to 19 units13.5%
20 or more units10.9%
Mobile home3.3%
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$359,459as of 2026-07
Typical home value, 1 yearup 4.3%
Typical home value, 5 yearsup 45.3%
Typical home value, 10 yearsup 107%
Typical asking rent$1,763as of 2026-07
Typical asking rent, 1 yearup 3.5%
Typical home value since 2000
200020132026$359,459$87,389

$87,389 in 2000 to $359,459 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate1.6%
Bachelor's degree or higher41.4%
High school diploma or higher93.9%
Works from home12.6%
Drives to work alone70.3%
Takes public transport0.1%
Commutes 45 minutes or more7.7%
Health

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

Obesity28.8% 4.6 pts below the national average of 33.4%
Diagnosed diabetes8.4% 3.6 pts below the national average of 12%
Currently smokes11% 2.2 pts below the national average of 13.2%
High blood pressure30.1% 4 pts below the national average of 34.1%
Fair or poor general health15.1% 5.2 pts below the national average of 20.3%
No health insurance (18–64)7.1% 4.2 pts below the national average of 11.3%
Depression24.6% 2.7 pts above the national average of 21.9%
No leisure-time physical activity20% 5.4 pts below the national average of 25.4%
Arthritis26.7% 1.6 pts above the national average of 25.1%
Binge drinking16.5% 0.5 pts above the national average of 16%
Taking blood pressure medication74.9% same as the national average of 74.7%
Cancer (non-skin)9.5% 1.8 pts above the national average of 7.7%
Current asthma10.8% same as the national average of 10.4%
Coronary heart disease5.8% same as the national average of 6.2%
Routine check-up in past year73.3% 3.4 pts below the national average of 76.7%
Cholesterol screening84.9% 1 pts below the national average of 85.9%
Cognitive disability13.9% 0.9 pts below the national average of 14.8%
Colorectal screening69.3% 5 pts above the national average of 64.3%
COPD6.4% same as the national average of 6.6%
Visited a dentist65.9% 4.6 pts above the national average of 61.3%
Any disability28.6% 2.1 pts below the national average of 30.7%
Lacks emotional support22.1% 2.7 pts below the national average of 24.8%
Food insecurity10.7% 6.4 pts below the national average of 17.1%
Received food stamps7.8% 6.5 pts below the national average of 14.3%
Hearing disability7.3% 0.6 pts above the national average of 6.7%
High cholesterol30.7% 5.5 pts below the national average of 36.2%
Housing insecurity8.6% 5.2 pts below the national average of 13.8%
Independent living disability7.4% 1 pts below the national average of 8.4%
Lacks transport6.8% 2.4 pts below the national average of 9.2%
Loneliness31.4% 3 pts below the national average of 34.4%
Mammography use77% 1.1 pts above the national average of 75.9%
Poor mental health (14+ days)16.9% same as the national average of 16.8%
Mobility disability11.1% 2.9 pts below the national average of 14%
Poor physical health (14+ days)12% 1.5 pts below the national average of 13.5%
Self-care disability3% 1 pts below the national average of 4%
Utility shut-off threat5.9% 2.9 pts below the national average of 8.8%
Sleeps under 7 hours32.8% 3.6 pts below the national average of 36.4%
Stroke3% same as the national average of 3.4%
All natural teeth lost11.7% 1.3 pts below the national average of 13%
Vision disability4.1% 1.5 pts below the national average of 5.6%
Advertisement
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments858
People employed15,601
Annual payroll$869,682,000
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 56.7% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 8 census tracts this ZIP code covers
Expected annual loss60.6 out of 100
Community resilience54 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.

Lightning89.6Relatively High at its worst in this ZIP code
Landslide84.6Relatively Moderate at its worst in this ZIP code
River flooding80.5Very High at its worst in this ZIP code
Ice storm80.2Relatively Moderate at its worst in this ZIP code
Hurricane72.2Relatively Low at its worst in this ZIP code
Winter weather63.8Relatively Moderate at its worst in this ZIP code
Cold wave57.9Relatively Moderate at its worst in this ZIP code
Strong wind54.1Relatively Moderate at its worst in this ZIP code
Wildfire51.9Relatively Low at its worst in this ZIP code
Hail50.7Relatively Low at its worst in this ZIP code
Earthquake48.9Relatively Low at its worst in this ZIP code
Tornado48.9Relatively Moderate at its worst in this ZIP code
Heat wave39.1Relatively Low at its worst in this ZIP code
Avalanche27.8Very 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$78,196$95,628$78,538
Income per person$39,574$50,867$43,289
Poverty rate9.8%7.2%12.4%
Median home value$233,900$367,200$303,400
Median gross rent$1,279$1,423$1,348
Homeownership51.9%72.5%65%
Bachelor's degree or higher41.4%39.8%35%
Unemployment rate1.6%3.4%5.2%
Works from home12.6%15.1%13.5%
Born outside the US3.6%6.2%13.9%
Median age36.843.238.7
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 stationKEENE, NH US3.6 km away
Rain in a year46 in
Snow in a year60 in

Average high and low by month

January30.4°F / 10.4°F3.12 in rain, 15.2 in snow
February34.3°F / 11.4°F2.77 in rain, 14.4 in snow
March43°F / 19.7°F3.35 in rain, 11 in snow
April56.6°F / 30.1°F3.39 in rain, 2.2 in snow
May68.6°F / 41°F3.77 in rain
June76.9°F / 50.7°F4.41 in rain
July81.9°F / 56°F4.49 in rain
August80.5°F / 54.4°F4.28 in rain
September73.2°F / 47°F4.26 in rain
October59.8°F / 35.7°F4.86 in rain, 0.2 in snow
November46.7°F / 26.8°F3.49 in rain, 2.4 in snow
December35.6°F / 17.8°F3.92 in rain, 14.4 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 supermarket50% of this ZIP code's area
Far from a supermarket62% of this ZIP code's area
No vehicle and far from a supermarket12% 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%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

Keene School District61.9% of this ZIP code's land area
Surry School District26.2% of this ZIP code's land area
Monadnock Regional School District12% 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 vulnerability37more vulnerable than 37% of US census tracts
Socioeconomic status39more vulnerable than 39% of US census tracts
Household characteristics24more vulnerable than 24% of US census tracts
Racial and ethnic minority status10more vulnerable than 10% of US census tracts
Housing type and transport65more vulnerable than 65% of US census tracts
Walkability6.8 out of 20Below average
Nearby ZIP codes

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

03435 Keene, NH3.5 km away
03445 Sullivan, NH8.6 km away
03448 Gilsum, NH8.8 km away
03469 West Swanzey, NH10.1 km away
03455 Marlborough, NH10.5 km away
03462 Spofford, NH10.9 km away
03467 Westmoreland, NH11.4 km away
03457 Nelson, NH13.7 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.

Cheshire County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area59.96 sq mi
Water area0.77 sq mi
Population density418 people per sq mi
Latitude, longitude42.9627, -72.2955

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.

Advertisement