Postal Codes

03307 ZIP Code

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ZIP code 03307 covers Loudon, New Hampshire, with a population of about 5,683 and a median household income of $100,141.

Population
5,683121 per square mile
Median age
50.211.5 points above the US average
Median household income
$100,141about the New Hampshire median
Poverty rate
4.7%7.7 points below the US average
Typical home value
$516,739up 39.2% in five years
Median rent
$1,25012% below the New Hampshire median
Degree or higher
28.1%6.9 points below the US average
Homeownership
87.8%22.8 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
93

Where 03307 is

Loudon, 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

Population5,683
Median age50.2
Family households77.2%
Born outside the US2.9%
Speaks a language other than English at home2.2%
White (non-Hispanic)97.1%
Black (non-Hispanic)0%
Asian (non-Hispanic)0.3%
Hispanic or Latino0.3%
Veterans9.4%
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$100,141
Income per person$42,308
Poverty rate4.7%
Households on SNAP or cash assistance7.1%

Household income distribution

Under $10k0.0%
$10–15k1.9%
$15–20k2.2%
$20–25k11.5%
$25–30k1.7%
$30–35k1.4%
$35–40k4.9%
$40–45k1.7%
$45–50k2.7%
$50–60k3.9%
$60–75k8.0%
$75–100k10.0%
$100–125k12.6%
$125–150k14.7%
$150–200k10.8%
$200k or more12.0%

Income as declared to the IRS

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

Tax returns filed3,070
Mean adjusted gross income$82,015
Returns declaring $200,000 or more4.9%
Returns, under $25k22.1%
Returns, $25k–$50k20.5%
Returns, $50k–$75k16.9%
Returns, $75k–$100k12.4%
Returns, $100k–$200k23.1%
Returns, $200k or more4.9%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$315,700
Median gross rent$1,250
Rent as a share of household income28.6%
Owner-occupied87.8%
Vacant homes4.5%
Median year built1990

What the homes are

Detached house76.8%
Attached house1.7%
2 to 4 units3.2%
20 or more units2.7%
Mobile home15.5%
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$516,739as of 2026-07
Typical home value, 1 yearup 2%
Typical home value, 5 yearsup 39.2%
Typical home value, 10 yearsup 119.3%
Typical home value since 2000
200020132026$516,739$137,864

$137,864 in 2000 to $516,739 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate1.2%
Bachelor's degree or higher28.1%
High school diploma or higher93.4%
Works from home11.2%
Drives to work alone81.3%
Takes public transport0%
Commutes 45 minutes or more15.6%
Health

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

Obesity35.4% 2 pts above the national average of 33.4%
Diagnosed diabetes10.4% 1.6 pts below the national average of 12%
Currently smokes12.5% 0.7 pts below the national average of 13.2%
High blood pressure34.9% 0.8 pts above the national average of 34.1%
Fair or poor general health16.4% 3.9 pts below the national average of 20.3%
No health insurance (18–64)6.8% 4.5 pts below the national average of 11.3%
Depression24.2% 2.3 pts above the national average of 21.9%
No leisure-time physical activity21.9% 3.5 pts below the national average of 25.4%
Arthritis31.1% 6 pts above the national average of 25.1%
Binge drinking14.2% 1.8 pts below the national average of 16%
Taking blood pressure medication77.5% 2.8 pts above the national average of 74.7%
Cancer (non-skin)10.2% 2.5 pts above the national average of 7.7%
Current asthma11.5% 1.1 pts above the national average of 10.4%
Coronary heart disease6.8% 0.6 pts above the national average of 6.2%
Routine check-up in past year80.1% 3.4 pts above the national average of 76.7%
Cholesterol screening88.8% 2.9 pts above the national average of 85.9%
Cognitive disability13.2% 1.6 pts below the national average of 14.8%
Colorectal screening66.6% 2.3 pts above the national average of 64.3%
COPD7.7% 1.1 pts above the national average of 6.6%
Visited a dentist67.7% 6.4 pts above the national average of 61.3%
Any disability29.4% 1.3 pts below the national average of 30.7%
Lacks emotional support21.9% 2.9 pts below the national average of 24.8%
Food insecurity10.5% 6.6 pts below the national average of 17.1%
Received food stamps8.2% 6.1 pts below the national average of 14.3%
Hearing disability7.8% 1.1 pts above the national average of 6.7%
High cholesterol35.1% 1.1 pts below the national average of 36.2%
Housing insecurity8.9% 4.9 pts below the national average of 13.8%
Independent living disability7.6% 0.8 pts below the national average of 8.4%
Lacks transport6.3% 2.9 pts below the national average of 9.2%
Loneliness29% 5.4 pts below the national average of 34.4%
Mammography use80.8% 4.9 pts above the national average of 75.9%
Poor mental health (14+ days)16.1% 0.7 pts below the national average of 16.8%
Mobility disability13.8% same as the national average of 14%
Poor physical health (14+ days)13.1% same as the national average of 13.5%
Self-care disability3.6% same as the national average of 4%
Utility shut-off threat6.1% 2.7 pts below the national average of 8.8%
Sleeps under 7 hours33.5% 2.9 pts below the national average of 36.4%
Stroke3.5% same as the national average of 3.4%
All natural teeth lost16.9% 3.9 pts above the national average of 13%
Vision disability4.4% 1.2 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments93
People employed579
Annual payroll$31,155,000
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 44.4% of US census tracts
FEMA ratingVery Low to Relatively Low across the 3 census tracts this ZIP code covers
Expected annual loss67.2 out of 100
Community resilience73.2 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 storm86.2Relatively Moderate at its worst in this ZIP code
Drought85.3Relatively Low at its worst in this ZIP code
Landslide85.2Relatively Low at its worst in this ZIP code
Lightning81.8Relatively High at its worst in this ZIP code
Hurricane75.9Relatively Low at its worst in this ZIP code
River flooding73.3Relatively Moderate at its worst in this ZIP code
Winter weather70.2Relatively Moderate at its worst in this ZIP code
Wildfire60.4Very Low at its worst in this ZIP code
Strong wind47.4Relatively Low at its worst in this ZIP code
Earthquake44.8Relatively Low at its worst in this ZIP code
Hail41.7Relatively Low at its worst in this ZIP code
Cold wave39.3Relatively Low at its worst in this ZIP code
Tornado38.9Relatively Low at its worst in this ZIP code
Heat wave38.8Relatively 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$100,141$95,628$78,538
Income per person$42,308$50,867$43,289
Poverty rate4.7%7.2%12.4%
Median home value$315,700$367,200$303,400
Median gross rent$1,250$1,423$1,348
Homeownership87.8%72.5%65%
Bachelor's degree or higher28.1%39.8%35%
Unemployment rate1.2%3.4%5.2%
Works from home11.2%15.1%13.5%
Born outside the US2.9%6.2%13.9%
Median age50.243.238.7
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 stationCONCORD MUNI AP, NH US14.1 km away
Rain in a year42 in
Snow in a year68 in

Average high and low by month

January31.6°F / 12.9°F2.8 in rain, 17.1 in snow
February34.8°F / 14.7°F2.75 in rain, 16.9 in snow
March43.6°F / 23.3°F3.28 in rain, 13.6 in snow
April57.5°F / 33.3°F3.43 in rain, 2.5 in snow
May69.3°F / 44.1°F3.47 in rain
June77.8°F / 53.7°F3.77 in rain
July83°F / 59.2°F3.62 in rain
August81.7°F / 57.2°F3.63 in rain
September73.7°F / 49°F3.63 in rain
October60.9°F / 37.8°F4.43 in rain, 0.8 in snow
November48.4°F / 28.7°F3.44 in rain, 2.5 in snow
December37.1°F / 19.5°F3.7 in rain, 14.3 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 supermarketNone of this ZIP code
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 2 school districts, so the address decides which one, not the ZIP code.

Merrimack Valley School District97.3% of this ZIP code's land area
Shaker Regional School District2.5% 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 vulnerability27more vulnerable than 27% of US census tracts
Socioeconomic status39more vulnerable than 39% of US census tracts
Household characteristics12more vulnerable than 12% of US census tracts
Racial and ethnic minority status3more vulnerable than 3% of US census tracts
Housing type and transport51more vulnerable than 51% of US census tracts
Walkability6.2 out of 20Below average
Nearby ZIP codes

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

03224 Canterbury, NH8.4 km away
03258 Chichester, NH9.5 km away
03263 Pittsfield, NH11.4 km away
03237 Gilmanton, NH11.8 km away
03301 Concord, NH12.2 km away
03305 Concord, NH12.5 km away
03218 Barnstead, NH14.5 km away
03234 Epsom, NH14.5 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 County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area46.96 sq mi
Water area0.59 sq mi
Population density121 people per sq mi
Latitude, longitude43.3193, -71.4670

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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