Postal Codes

01077 ZIP Code

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ZIP code 01077 covers Southwick, Massachusetts, with a population of about 9,222 and a median household income of $108,833.

Population
9,222299 per square mile
Median age
48.29.5 points above the US average
Median household income
$108,8331.1× the Massachusetts median
Poverty rate
6.1%6.3 points below the US average
Typical home value
$421,138up 28.8% in five years
Median rent
$1,34320% below the Massachusetts median
Degree or higher
35.9%0.9 points above the US average
Homeownership
81.3%16.3 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
220

Where 01077 is

Southwick, 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

Population9,222
Median age48.2
Family households64.1%
Born outside the US3.3%
Speaks a language other than English at home6.3%
White (non-Hispanic)89.6%
Black (non-Hispanic)0.5%
Asian (non-Hispanic)1%
Hispanic or Latino4.7%
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$108,833
Income per person$50,685
Poverty rate6.1%
Households on SNAP or cash assistance7.5%

Household income distribution

Under $10k2.7%
$10–15k1.0%
$15–20k2.5%
$20–25k2.1%
$25–30k2.0%
$30–35k3.5%
$35–40k2.4%
$40–45k2.4%
$45–50k6.9%
$50–60k5.3%
$60–75k10.2%
$75–100k7.5%
$100–125k12.7%
$125–150k9.2%
$150–200k14.3%
$200k or more15.5%

Income as declared to the IRS

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

Tax returns filed5,120
Mean adjusted gross income$95,550
Returns declaring $200,000 or more9.6%
Returns, under $25k23.4%
Returns, $25k–$50k19.3%
Returns, $50k–$75k15.0%
Returns, $75k–$100k10.7%
Returns, $100k–$200k21.9%
Returns, $200k or more9.6%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$375,700
Median gross rent$1,343
Rent as a share of household income30.8%
Owner-occupied81.3%
Vacant homes8.4%
Median year built1981

What the homes are

Detached house74.9%
Attached house7.6%
2 to 4 units9.7%
5 to 19 units3.8%
20 or more units3.7%
Mobile home0.2%
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$421,138as of 2026-07
Typical home value, 1 yearup 3.7%
Typical home value, 5 yearsup 28.8%
Typical home value, 10 yearsup 70.4%
Typical home value since 2000
200020132026$421,138$150,854

$150,854 in 2000 to $421,138 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.5%
Bachelor's degree or higher35.9%
High school diploma or higher95.9%
Works from home14.1%
Drives to work alone79.3%
Takes public transport0%
Commutes 45 minutes or more10.2%
Health

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

Obesity31.3% 2.1 pts below the national average of 33.4%
Diagnosed diabetes10.2% 1.8 pts below the national average of 12%
Currently smokes12.7% 0.5 pts below the national average of 13.2%
High blood pressure34.4% same as the national average of 34.1%
Fair or poor general health17% 3.3 pts below the national average of 20.3%
No health insurance (18–64)3.7% 7.6 pts below the national average of 11.3%
Depression27.2% 5.3 pts above the national average of 21.9%
No leisure-time physical activity23% 2.4 pts below the national average of 25.4%
Arthritis31.6% 6.5 pts above the national average of 25.1%
Binge drinking17.4% 1.4 pts above the national average of 16%
Taking blood pressure medication78.1% 3.4 pts above the national average of 74.7%
Cancer (non-skin)10.7% 3 pts above the national average of 7.7%
Current asthma12.5% 2.1 pts above the national average of 10.4%
Coronary heart disease6.7% 0.5 pts above the national average of 6.2%
Routine check-up in past year82% 5.3 pts above the national average of 76.7%
Cholesterol screening90.7% 4.8 pts above the national average of 85.9%
Cognitive disability13.8% 1 pts below the national average of 14.8%
Colorectal screening72.7% 8.4 pts above the national average of 64.3%
COPD6.9% same as the national average of 6.6%
Visited a dentist76.7% 15.4 pts above the national average of 61.3%
Any disability30.6% same as the national average of 30.7%
Lacks emotional support25.2% same as the national average of 24.8%
Food insecurity9.9% 7.2 pts below the national average of 17.1%
Received food stamps12.4% 1.9 pts below the national average of 14.3%
Hearing disability7% same as the national average of 6.7%
High cholesterol36.8% 0.6 pts above the national average of 36.2%
Housing insecurity9.2% 4.6 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%
Loneliness34.1% same as the national average of 34.4%
Mammography use82.1% 6.2 pts above the national average of 75.9%
Poor mental health (14+ days)17.1% same as the national average of 16.8%
Mobility disability13.7% same as the national average of 14%
Poor physical health (14+ days)14.2% 0.7 pts above the national average of 13.5%
Self-care disability3.2% 0.8 pts below the national average of 4%
Utility shut-off threat6.1% 2.7 pts below the national average of 8.8%
Sleeps under 7 hours32.8% 3.6 pts below the national average of 36.4%
Stroke3.3% same as the national average of 3.4%
All natural teeth lost11.6% 1.4 pts below the national average of 13%
Vision disability3.8% 1.8 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments220
People employed2,317
Annual payroll$100,058,000
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 38.3% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 3 census tracts this ZIP code covers
Expected annual loss49.6 out of 100
Community resilience62.2 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.

Drought90.2Relatively Moderate at its worst in this ZIP code
Hurricane80.6Relatively Moderate at its worst in this ZIP code
Ice storm73.9Relatively Moderate at its worst in this ZIP code
Landslide70Very Low at its worst in this ZIP code
Wildfire63Relatively Low at its worst in this ZIP code
River flooding60.4Relatively High at its worst in this ZIP code
Strong wind55Relatively Moderate at its worst in this ZIP code
Hail51.5Relatively Low at its worst in this ZIP code
Winter weather42.6Relatively Moderate at its worst in this ZIP code
Earthquake40.5Relatively Low at its worst in this ZIP code
Cold wave39.5Relatively Moderate at its worst in this ZIP code
Tornado38.4Relatively Low at its worst in this ZIP code
Heat wave27.9Relatively Low at its worst in this ZIP code
Lightning21.3Relatively 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$108,833$101,341$78,538
Income per person$50,685$56,284$43,289
Poverty rate6.1%10%12.4%
Median home value$375,700$525,800$303,400
Median gross rent$1,343$1,687$1,348
Homeownership81.3%62.6%65%
Bachelor's degree or higher35.9%46.6%35%
Unemployment rate3.5%5.1%5.2%
Works from home14.1%16.7%13.5%
Born outside the US3.3%17.7%13.9%
Median age48.24038.7
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 stationWESTFIELD 3 SW, MA US5.4 km away
Rain in a year52 in

Average high and low by month

January33.4°F / 15.8°F3.98 in rain
February36.7°F / 17°F3.61 in rain
March44.9°F / 24.8°F3.92 in rain
April58.1°F / 34.9°F4.74 in rain
May69.9°F / 46.3°F4.2 in rain
June78.4°F / 55.6°F5.08 in rain
July83.8°F / 60.7°F4.26 in rain
August81.7°F / 59.2°F3.8 in rain
September74.6°F / 51.8°F4.38 in rain
October61.6°F / 40.3°F5.18 in rain
November49°F / 30.8°F4.06 in rain
December37.7°F / 21.7°F5.15 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 supermarket40% of this ZIP code's area
No vehicle and far from a supermarket40% 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%.

Southwick-Tolland-Granville Regional School District99.9% 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 vulnerability11more vulnerable than 11% of US census tracts
Socioeconomic status13more vulnerable than 13% of US census tracts
Household characteristics19more vulnerable than 19% of US census tracts
Racial and ethnic minority status17more vulnerable than 17% of US census tracts
Housing type and transport22more vulnerable than 22% of US census tracts
Walkability6.4 out of 20Below average
Nearby ZIP codes

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

06093 West Suffield, CT5.2 km away
06060 North Granby, CT6.7 km away
01030 Feeding Hills, MA8.2 km away
01085 Westfield, MA8.4 km away
06035 Granby, CT10.4 km away
01071 Russell, MA12.1 km away
01001 Agawam, MA12.4 km away
06080 Suffield, CT12.6 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.

Hampden County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area30.85 sq mi
Water area0.83 sq mi
Population density299 people per sq mi
Latitude, longitude42.0511, -72.7706

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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