Postal Codes

03854 ZIP Code

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ZIP code 03854 covers New Castle, New Hampshire, with a population of about 948 and a median household income of $193,558.

Population
9481,172 per square mile
Median age
56.818.1 points above the US average
Median household income
$193,5582.0× the New Hampshire median
Poverty rate
3.7%8.7 points below the US average
Typical home value
$2,463,636up 53.8% in five years
Median rent
$3,4532.4× the New Hampshire median
Degree or higher
71.4%36.4 points above the US average
Homeownership
91.6%26.6 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
21

Where 03854 is

New Castle, 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

Population948
Median age56.8
Family households68.3%
Born outside the US0.9%
Speaks a language other than English at home2.8%
White (non-Hispanic)96.6%
Black (non-Hispanic)0%
Asian (non-Hispanic)0.4%
Hispanic or Latino0%
Veterans15.6%
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$193,558
Income per person$157,637
Poverty rate3.7%
Households on SNAP or cash assistance0.9%

Household income distribution

Under $10k0.0%
$10–15k0.9%
$15–20k2.3%
$20–25k4.6%
$25–30k3.0%
$30–35k2.5%
$35–40k2.7%
$40–45k0.0%
$45–50k0.0%
$50–60k2.7%
$60–75k0.0%
$75–100k13.0%
$100–125k2.3%
$125–150k4.3%
$150–200k14.4%
$200k or more47.4%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$1,612,700
Median gross rent$3,453
Owner-occupied91.6%
Vacant homes15.1%
Median year built1977

What the homes are

Detached house88.6%
Attached house0.4%
2 to 4 units9.7%
5 to 19 units0.8%
Mobile home0.6%
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$2,463,636as of 2026-07
Typical home value, 1 yearup 2.3%
Typical home value, 5 yearsup 53.8%
Typical home value, 10 yearsup 130.7%
Typical home value since 2000
200020132026$2,463,636$642,507

$642,507 in 2000 to $2,463,636 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate0%
Bachelor's degree or higher71.4%
High school diploma or higher95.6%
Works from home35.8%
Drives to work alone59%
Takes public transport0.8%
Commutes 45 minutes or more15%
Health

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

Obesity29.2% 4.2 pts below the national average of 33.4%
Diagnosed diabetes11.1% 0.9 pts below the national average of 12%
Currently smokes7.4% 5.8 pts below the national average of 13.2%
High blood pressure42% 7.9 pts above the national average of 34.1%
Fair or poor general health12.6% 7.7 pts below the national average of 20.3%
No health insurance (18–64)4.2% 7.1 pts below the national average of 11.3%
Depression19.3% 2.6 pts below the national average of 21.9%
No leisure-time physical activity18.2% 7.2 pts below the national average of 25.4%
Arthritis34% 8.9 pts above the national average of 25.1%
Binge drinking11.8% 4.2 pts below the national average of 16%
Taking blood pressure medication83.8% 9.1 pts above the national average of 74.7%
Cancer (non-skin)14.5% 6.8 pts above the national average of 7.7%
Current asthma9.7% 0.7 pts below the national average of 10.4%
Coronary heart disease7.5% 1.3 pts above the national average of 6.2%
Routine check-up in past year84.4% 7.7 pts above the national average of 76.7%
Cholesterol screening93.5% 7.6 pts above the national average of 85.9%
Cognitive disability8.5% 6.3 pts below the national average of 14.8%
Colorectal screening76.8% 12.5 pts above the national average of 64.3%
COPD6.4% same as the national average of 6.6%
Visited a dentist79% 17.7 pts above the national average of 61.3%
Any disability25% 5.7 pts below the national average of 30.7%
Lacks emotional support16.4% 8.4 pts below the national average of 24.8%
Food insecurity5.8% 11.3 pts below the national average of 17.1%
Received food stamps3.5% 10.8 pts below the national average of 14.3%
Hearing disability8.9% 2.2 pts above the national average of 6.7%
High cholesterol43.6% 7.4 pts above the national average of 36.2%
Housing insecurity4.4% 9.4 pts below the national average of 13.8%
Independent living disability5.4% 3 pts below the national average of 8.4%
Lacks transport3.6% 5.6 pts below the national average of 9.2%
Loneliness24.6% 9.8 pts below the national average of 34.4%
Mammography use80% 4.1 pts above the national average of 75.9%
Poor mental health (14+ days)11.2% 5.6 pts below the national average of 16.8%
Mobility disability12% 2 pts below the national average of 14%
Poor physical health (14+ days)11.5% 2 pts below the national average of 13.5%
Self-care disability2.8% 1.2 pts below the national average of 4%
Utility shut-off threat3.2% 5.6 pts below the national average of 8.8%
Sleeps under 7 hours27.6% 8.8 pts below the national average of 36.4%
Stroke3.7% same as the national average of 3.4%
All natural teeth lost5% 8 pts below the national average of 13%
Vision disability3.5% 2.1 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments21
People employed339
Annual payroll$13,461,000
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 16.1% of US census tracts
FEMA ratingVery Low
Expected annual loss19.8 out of 100
Community resilience70.9 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.

Coastal flooding95.9Relatively High at its worst in this ZIP code
Ice storm84.7Relatively Moderate at its worst in this ZIP code
Earthquake71.1Relatively Low at its worst in this ZIP code
Hurricane69.9Relatively Low at its worst in this ZIP code
Landslide66.6Very Low at its worst in this ZIP code
Wildfire52.1Very Low at its worst in this ZIP code
Lightning39.8Relatively Low at its worst in this ZIP code
Winter weather39.4Relatively Low at its worst in this ZIP code
Strong wind38Relatively Low at its worst in this ZIP code
Tornado34.8Relatively Low at its worst in this ZIP code
Cold wave29.2Relatively Low at its worst in this ZIP code
Hail28.2Very Low at its worst in this ZIP code
River flooding17.3Relatively Low at its worst in this ZIP code
Heat wave10.2Very 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$193,558$95,628$78,538
Income per person$157,637$50,867$43,289
Poverty rate3.7%7.2%12.4%
Median home value$1,612,700$367,200$303,400
Median gross rent$3,453$1,423$1,348
Homeownership91.6%72.5%65%
Bachelor's degree or higher71.4%39.8%35%
Unemployment rate0%3.4%5.2%
Works from home35.8%15.1%13.5%
Born outside the US0.9%6.2%13.9%
Median age56.843.238.7
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 stationGREENLAND, NH US10.1 km away
Rain in a year51 in
Snow in a year65 in

Average high and low by month

January32.6°F / 16.3°F3.63 in rain, 17.1 in snow
February35.6°F / 17.6°F3.57 in rain, 15.8 in snow
March43.3°F / 25.3°F4.77 in rain, 13.9 in snow
April55.8°F / 34.8°F4.56 in rain, 2.3 in snow
May66.1°F / 44.8°F3.95 in rain
June75°F / 54.1°F4.59 in rain
July80.5°F / 60.1°F3.89 in rain
August79.4°F / 58.8°F3.66 in rain
September71.8°F / 51.7°F4.08 in rain
October59.7°F / 40.5°F4.95 in rain, 0.1 in snow
November48.1°F / 31.2°F4.12 in rain, 1.6 in snow
December37.8°F / 22.3°F4.88 in rain, 14.2 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 supermarket100% of this ZIP code's area
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%.

New Castle 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 vulnerability18more vulnerable than 18% of US census tracts
Socioeconomic status3more vulnerable than 3% of US census tracts
Household characteristics25more vulnerable than 25% of US census tracts
Racial and ethnic minority status10more vulnerable than 10% of US census tracts
Housing type and transport71more vulnerable than 71% of US census tracts
Walkability8 out of 20Below average
Nearby ZIP codes

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

03904 Kittery, ME3.3 km away
03905 Kittery Point, ME3.3 km away
03802 Portsmouth, NH3.5 km away
03803 Portsmouth, NH3.5 km away
03804 Portsmouth, NH3.5 km away
03801 Portsmouth, NH6.9 km away
03870 Rye, NH7.5 km away
03903 Eliot, ME8.6 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.

Rockingham County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area0.81 sq mi
Water area1.46 sq mi
Population density1,172 people per sq mi
Latitude, longitude43.0681, -70.7199

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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