Postal Codes

02645 ZIP Code

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ZIP code 02645 covers Harwich, Massachusetts, with a population of about 11,060 and a median household income of $89,898.

Population
11,060653 per square mile
Median age
56.918.2 points above the US average
Median household income
$89,89811% below the Massachusetts median
Poverty rate
3.6%8.8 points below the US average
Typical home value
$773,299up 33.6% in five years
Median rent
$1,8091.1× the Massachusetts median
Degree or higher
42.8%7.8 points above the US average
Homeownership
83.2%18.2 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
275

Where 02645 is

Harwich, Massachusetts — 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

Population11,060
Median age56.9
Family households62%
Born outside the US3.4%
Speaks a language other than English at home5.1%
White (non-Hispanic)94.5%
Black (non-Hispanic)0.1%
Asian (non-Hispanic)0%
Hispanic or Latino1.2%
Veterans7%
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$89,898
Income per person$53,249
Poverty rate3.6%
Households on SNAP or cash assistance4.6%

Household income distribution

Under $10k1.2%
$10–15k2.7%
$15–20k2.4%
$20–25k1.7%
$25–30k3.2%
$30–35k1.2%
$35–40k2.5%
$40–45k2.8%
$45–50k2.4%
$50–60k6.4%
$60–75k7.7%
$75–100k20.3%
$100–125k10.1%
$125–150k7.5%
$150–200k14.8%
$200k or more13.1%

Income as declared to the IRS

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

Tax returns filed5,860
Mean adjusted gross income$98,006
Returns declaring $200,000 or more8.4%
Returns, under $25k24.4%
Returns, $25k–$50k17.7%
Returns, $50k–$75k15.5%
Returns, $75k–$100k11.1%
Returns, $100k–$200k22.9%
Returns, $200k or more8.4%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$581,200
Median gross rent$1,809
Rent as a share of household income30.9%
Owner-occupied83.2%
Vacant homes28.4%
Median year built1980

What the homes are

Detached house93.2%
Attached house2.4%
2 to 4 units1.9%
5 to 19 units1.1%
20 or more units1.2%
Mobile home0.1%
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$773,299as of 2026-07
Typical home value, 1 yearup 2.7%
Typical home value, 5 yearsup 33.6%
Typical home value, 10 yearsup 96.8%
Typical home value since 2000
200020132026$773,299$175,201

$175,201 in 2000 to $773,299 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.8%
Bachelor's degree or higher42.8%
High school diploma or higher98.8%
Works from home14.6%
Drives to work alone79%
Takes public transport0.2%
Commutes 45 minutes or more11%
Health

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

Obesity25.9% 7.5 pts below the national average of 33.4%
Diagnosed diabetes10.2% 1.8 pts below the national average of 12%
Currently smokes10.2% 3 pts below the national average of 13.2%
High blood pressure37.5% 3.4 pts above the national average of 34.1%
Fair or poor general health14.7% 5.6 pts below the national average of 20.3%
No health insurance (18–64)3.4% 7.9 pts below the national average of 11.3%
Depression22.6% 0.7 pts above the national average of 21.9%
No leisure-time physical activity18.2% 7.2 pts below the national average of 25.4%
Arthritis35.3% 10.2 pts above the national average of 25.1%
Binge drinking14.1% 1.9 pts below the national average of 16%
Taking blood pressure medication82.9% 8.2 pts above the national average of 74.7%
Cancer (non-skin)13.4% 5.7 pts above the national average of 7.7%
Current asthma11.6% 1.2 pts above the national average of 10.4%
Coronary heart disease7.6% 1.4 pts above the national average of 6.2%
Routine check-up in past year85.4% 8.7 pts above the national average of 76.7%
Cholesterol screening93.4% 7.5 pts above the national average of 85.9%
Cognitive disability11% 3.8 pts below the national average of 14.8%
Colorectal screening76.6% 12.3 pts above the national average of 64.3%
COPD6.8% same as the national average of 6.6%
Visited a dentist75.9% 14.6 pts above the national average of 61.3%
Any disability27.4% 3.3 pts below the national average of 30.7%
Lacks emotional support20.7% 4.1 pts below the national average of 24.8%
Food insecurity7.6% 9.5 pts below the national average of 17.1%
Received food stamps8.7% 5.6 pts below the national average of 14.3%
Hearing disability7.9% 1.2 pts above the national average of 6.7%
High cholesterol39.7% 3.5 pts above the national average of 36.2%
Housing insecurity7% 6.8 pts below the national average of 13.8%
Independent living disability6.6% 1.8 pts below the national average of 8.4%
Lacks transport5% 4.2 pts below the national average of 9.2%
Loneliness29.9% 4.5 pts below the national average of 34.4%
Mammography use83.6% 7.7 pts above the national average of 75.9%
Poor mental health (14+ days)13.7% 3.1 pts below the national average of 16.8%
Mobility disability13.1% 0.9 pts below the national average of 14%
Poor physical health (14+ days)13.1% same as the national average of 13.5%
Self-care disability3% 1 pts below the national average of 4%
Utility shut-off threat4.8% 4 pts below the national average of 8.8%
Sleeps under 7 hours29.7% 6.7 pts below the national average of 36.4%
Stroke3.6% same as the national average of 3.4%
All natural teeth lost7.8% 5.2 pts below the national average of 13%
Vision disability3.6% 2 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments275
People employed2,118
Annual payroll$124,754,000
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 62.4% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 5 census tracts this ZIP code covers
Expected annual loss66.3 out of 100
Community resilience99.1 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 flooding94.5Relatively High at its worst in this ZIP code
Hurricane88.3Relatively High at its worst in this ZIP code
River flooding81.5Relatively High at its worst in this ZIP code
Drought76.8Relatively Low at its worst in this ZIP code
Wildfire73.9Relatively Low at its worst in this ZIP code
Landslide72.4Relatively Low at its worst in this ZIP code
Lightning66.5Relatively High at its worst in this ZIP code
Earthquake45.4Relatively Low at its worst in this ZIP code
Hail41.1Relatively Low at its worst in this ZIP code
Strong wind24.2Relatively Low at its worst in this ZIP code
Winter weather23.8Relatively Low at its worst in this ZIP code
Cold wave23.3Relatively Low at its worst in this ZIP code
Tornado17.1Very Low at its worst in this ZIP code
Heat wave5.4Very Low at its worst in this ZIP code
Ice storm2.1Very Low at its worst in this ZIP code
Compared with Massachusetts 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 ZIPMassachusettsUnited States
Median household income$89,898$101,341$78,538
Income per person$53,249$56,284$43,289
Poverty rate3.6%10%12.4%
Median home value$581,200$525,800$303,400
Median gross rent$1,809$1,687$1,348
Homeownership83.2%62.6%65%
Bachelor's degree or higher42.8%46.6%35%
Unemployment rate4.8%5.1%5.2%
Works from home14.6%16.7%13.5%
Born outside the US3.4%17.7%13.9%
Median age56.94038.7
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 stationCHATHAM MUNI AP, MA US5.6 km away
Rain in a year45 in

Average high and low by month

January38.6°F / 25.5°F3.75 in rain
February39.5°F / 25.9°F3.61 in rain
March43.9°F / 31.2°F4.43 in rain
April52.3°F / 39°F4.01 in rain
May61.9°F / 48°F3.34 in rain
June71.5°F / 57.2°F2.95 in rain
July78.7°F / 64.2°F2.79 in rain
August77.7°F / 63.5°F3.03 in rain
September71.1°F / 57.5°F3.58 in rain
October61.3°F / 47.4°F4.23 in rain
November52.1°F / 38.8°F4.47 in rain
December43.9°F / 30.8°F5 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 supermarket21% 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.

Monomoy Regional School District92.4% of this ZIP code's land area
Brewster School District3.8% of this ZIP code's land area
Nauset School District3.8% 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 vulnerability17more vulnerable than 17% of US census tracts
Socioeconomic status20more vulnerable than 20% of US census tracts
Household characteristics23more vulnerable than 23% of US census tracts
Racial and ethnic minority status12more vulnerable than 12% of US census tracts
Housing type and transport25more vulnerable than 25% of US census tracts
Walkability8.1 out of 20Below average
Nearby ZIP codes

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

02661 South Harwich, MA2.6 km away
02646 Harwich Port, MA3.6 km away
02659 South Chatham, MA3.6 km away
02631 Brewster, MA5.5 km away
02671 West Harwich, MA5.8 km away
02669 West Chatham, MA6 km away
02633 Chatham, MA7.2 km away
02639 Dennis Port, MA7.4 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.

Barnstable County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area16.93 sq mi
Water area1.82 sq mi
Population density653 people per sq mi
Latitude, longitude41.7008, -70.0579

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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