Postal Codes

07945 ZIP Code

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ZIP code 07945 covers Mendham, New Jersey, with a population of about 9,771 and a median household income of $243,665.

Population
9,771502 per square mile
Median age
46.37.6 points above the US average
Median household income
$243,6652.4× the New Jersey median
Poverty rate
1.9%10.5 points below the US average
Typical home value
$1,147,874up 39% in five years
Degree or higher
77.9%42.9 points above the US average
Homeownership
91.7%26.7 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
235

Where 07945 is

Mendham, New Jersey — 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

Population9,771
Median age46.3
Family households78%
Born outside the US12.4%
Speaks a language other than English at home13.3%
White (non-Hispanic)81.2%
Black (non-Hispanic)0.2%
Asian (non-Hispanic)5.5%
Hispanic or Latino5.8%
Veterans2.4%
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$243,665
Income per person$114,131
Poverty rate1.9%
Households on SNAP or cash assistance1.7%

Household income distribution

Under $10k0.9%
$10–15k0.5%
$15–20k0.3%
$20–25k1.0%
$25–30k0.5%
$30–35k0.4%
$35–40k1.5%
$40–45k0.9%
$45–50k0.0%
$50–60k1.2%
$60–75k2.4%
$75–100k5.7%
$100–125k5.8%
$125–150k4.3%
$150–200k15.2%
$200k or more59.3%

Income as declared to the IRS

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

Tax returns filed4,600
Mean adjusted gross income$365,463
Returns declaring $200,000 or more42%
Returns, under $25k19.1%
Returns, $25k–$50k8.3%
Returns, $50k–$75k7.2%
Returns, $75k–$100k6.3%
Returns, $100k–$200k17.2%
Returns, $200k or more42.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$894,200
Rent as a share of household income26.8%
Owner-occupied91.7%
Vacant homes4.5%
Median year built1974

What the homes are

Detached house88.5%
Attached house7.8%
2 to 4 units1.6%
5 to 19 units1.4%
20 or more units0.7%
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$1,147,874as of 2026-07
Typical home value, 1 yearup 6.9%
Typical home value, 5 yearsup 39%
Typical home value, 10 yearsup 57%
Typical home value since 2000
200020132026$1,147,874$465,141

$465,141 in 2000 to $1,147,874 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.4%
Bachelor's degree or higher77.9%
High school diploma or higher98.9%
Works from home28.4%
Drives to work alone60.3%
Takes public transport4%
Commutes 45 minutes or more30.2%
Health

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

Obesity21% 12.4 pts below the national average of 33.4%
Diagnosed diabetes7.7% 4.3 pts below the national average of 12%
Currently smokes6.3% 6.9 pts below the national average of 13.2%
High blood pressure30.6% 3.5 pts below the national average of 34.1%
Fair or poor general health9.8% 10.5 pts below the national average of 20.3%
No health insurance (18–64)4.5% 6.8 pts below the national average of 11.3%
Depression15% 6.9 pts below the national average of 21.9%
No leisure-time physical activity14.7% 10.7 pts below the national average of 25.4%
Arthritis22.8% 2.3 pts below the national average of 25.1%
Binge drinking18% 2 pts above the national average of 16%
Taking blood pressure medication78.8% 4.1 pts above the national average of 74.7%
Cancer (non-skin)10.5% 2.8 pts above the national average of 7.7%
Current asthma8.4% 2 pts below the national average of 10.4%
Coronary heart disease4.9% 1.3 pts below the national average of 6.2%
Routine check-up in past year80.6% 3.9 pts above the national average of 76.7%
Cholesterol screening92.8% 6.9 pts above the national average of 85.9%
Cognitive disability7.7% 7.1 pts below the national average of 14.8%
Colorectal screening70.7% 6.4 pts above the national average of 64.3%
COPD3.6% 3 pts below the national average of 6.6%
Visited a dentist80.1% 18.8 pts above the national average of 61.3%
Any disability18.1% 12.6 pts below the national average of 30.7%
Lacks emotional support17.7% 7.1 pts below the national average of 24.8%
Food insecurity4.7% 12.4 pts below the national average of 17.1%
Received food stamps2.4% 11.9 pts below the national average of 14.3%
Hearing disability5.2% 1.5 pts below the national average of 6.7%
High cholesterol41.1% 4.9 pts above the national average of 36.2%
Housing insecurity4.7% 9.1 pts below the national average of 13.8%
Independent living disability4.2% 4.2 pts below the national average of 8.4%
Lacks transport3.5% 5.7 pts below the national average of 9.2%
Loneliness28.4% 6 pts below the national average of 34.4%
Mammography use79.3% 3.4 pts above the national average of 75.9%
Poor mental health (14+ days)11.5% 5.3 pts below the national average of 16.8%
Mobility disability7.7% 6.3 pts below the national average of 14%
Poor physical health (14+ days)9.1% 4.4 pts below the national average of 13.5%
Self-care disability2% 2 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 hours29.6% 6.8 pts below the national average of 36.4%
Stroke2.4% 1 pts below the national average of 3.4%
All natural teeth lost4.5% 8.5 pts below the national average of 13%
Vision disability2.6% 3 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments235
People employed1,961
Annual payroll$79,214,000
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 66.8% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 3 census tracts this ZIP code covers
Expected annual loss83.1 out of 100
Community resilience82.9 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.

River flooding88.1Relatively High at its worst in this ZIP code
Winter weather84.9Relatively High at its worst in this ZIP code
Landslide84.3Relatively Low at its worst in this ZIP code
Drought80Relatively Low at its worst in this ZIP code
Strong wind78.3Relatively Moderate at its worst in this ZIP code
Hurricane73.6Relatively Low at its worst in this ZIP code
Cold wave70Relatively Moderate at its worst in this ZIP code
Earthquake59.8Relatively Low at its worst in this ZIP code
Lightning59.5Relatively Moderate at its worst in this ZIP code
Wildfire55.1Very Low at its worst in this ZIP code
Tornado49Relatively Low at its worst in this ZIP code
Heat wave46.3Relatively Low at its worst in this ZIP code
Hail23.9Very Low at its worst in this ZIP code
Ice storm21.5Very Low at its worst in this ZIP code
Compared with New Jersey 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 JerseyUnited States
Median household income$243,665$101,050$78,538
Income per person$114,131$53,118$43,289
Poverty rate1.9%9.8%12.4%
Median home value$894,200$427,600$303,400
Median gross rent$1,653$1,348
Homeownership91.7%63.7%65%
Bachelor's degree or higher77.9%42.9%35%
Unemployment rate2.4%6.2%5.2%
Works from home28.4%15%13.5%
Born outside the US12.4%23.5%13.9%
Median age46.340.138.7
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 stationSOMERVILLE SOMERSET AP, NJ US18.2 km away
Rain in a year45 in

Average high and low by month

January39.3°F / 20.6°F3.16 in rain
February42.8°F / 22.3°F2.2 in rain
March50.7°F / 29.5°F3.89 in rain
April63.1°F / 38.9°F3.59 in rain
May73°F / 48.2°F3.54 in rain
June81.4°F / 57.6°F4.23 in rain
July86.2°F / 63°F4.93 in rain
August84.3°F / 61.3°F5.18 in rain
September77.7°F / 53.8°F3.82 in rain
October65.9°F / 42.1°F3.67 in rain
November54.9°F / 32.9°F3.41 in rain
December44.1°F / 26.2°F3.87 in rain
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%.

This ZIP code is served by 4 school districts, so the address decides which one, not the ZIP code.

West Morris Regional School District47.6% of this ZIP code's land area
Mendham Township School District31.6% of this ZIP code's land area
Mendham Borough School District16% of this ZIP code's land area
Randolph Township School District4.8% 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 vulnerability4more vulnerable than 4% of US census tracts
Socioeconomic status2more vulnerable than 2% of US census tracts
Household characteristics19more vulnerable than 19% of US census tracts
Racial and ethnic minority status28more vulnerable than 28% of US census tracts
Housing type and transport12more vulnerable than 12% of US census tracts
Walkability7.4 out of 20Below average
Nearby ZIP codes

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

07926 Brookside, NJ3.4 km away
07970 Mount Freedom, NJ3.7 km away
07845 Ironia, NJ5.3 km away
07924 Bernardsville, NJ6.5 km away
07930 Chester, NJ6.6 km away
07869 Randolph, NJ7.8 km away
07934 Gladstone, NJ8.7 km away
07977 Peapack, NJ9.1 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.

Morris County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area19.48 sq mi
Water area0.3 sq mi
Population density502 people per sq mi
Latitude, longitude40.7789, -74.6000

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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