Postal Codes

01921 ZIP Code

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ZIP code 01921 covers Boxford, Massachusetts, with a population of about 8,229 and a median household income of $190,526.

Population
8,229349 per square mile
Median age
49.510.8 points above the US average
Median household income
$190,5261.9× the Massachusetts median
Poverty rate
2.2%10.2 points below the US average
Typical home value
$1,083,798up 26.2% in five years
Median rent
$73656% below the Massachusetts median
Degree or higher
69.2%34.2 points above the US average
Homeownership
94.5%29.5 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
155

Where 01921 is

Boxford, 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

Population8,229
Median age49.5
Family households81.6%
Born outside the US6.3%
Speaks a language other than English at home6.8%
White (non-Hispanic)91%
Black (non-Hispanic)0.4%
Asian (non-Hispanic)1%
Hispanic or Latino2.6%
Veterans5.1%
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$190,526
Income per person$90,836
Poverty rate2.2%
Households on SNAP or cash assistance2.5%

Household income distribution

Under $10k0.5%
$10–15k0.0%
$15–20k0.4%
$20–25k1.0%
$25–30k1.9%
$30–35k2.2%
$35–40k2.0%
$40–45k2.2%
$45–50k2.5%
$50–60k1.5%
$60–75k4.9%
$75–100k7.5%
$100–125k8.2%
$125–150k4.9%
$150–200k13.5%
$200k or more46.6%

Income as declared to the IRS

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

Tax returns filed3,890
Mean adjusted gross income$293,136
Returns declaring $200,000 or more35.5%
Returns, under $25k19.5%
Returns, $25k–$50k8.7%
Returns, $50k–$75k8.0%
Returns, $75k–$100k6.2%
Returns, $100k–$200k22.1%
Returns, $200k or more35.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$874,900
Median gross rent$736
Rent as a share of household income31.8%
Owner-occupied94.5%
Vacant homes2%
Median year built1977

What the homes are

Detached house85.1%
Attached house3.2%
2 to 4 units5.9%
5 to 19 units1.9%
20 or more units2.6%
Boat, RV or van1.4%
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$1,083,798as of 2026-07
Typical home value, 1 yearup 1%
Typical home value, 5 yearsup 26.2%
Typical home value, 10 yearsup 78.2%
Typical home value since 2000
200020132026$1,083,798$411,972

$411,972 in 2000 to $1,083,798 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.1%
Bachelor's degree or higher69.2%
High school diploma or higher97.8%
Works from home19%
Drives to work alone68.3%
Takes public transport1.4%
Commutes 45 minutes or more22.8%
Health

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

Obesity26.2% 7.2 pts below the national average of 33.4%
Diagnosed diabetes8.1% 3.9 pts below the national average of 12%
Currently smokes7.8% 5.4 pts below the national average of 13.2%
High blood pressure30.2% 3.9 pts below the national average of 34.1%
Fair or poor general health11% 9.3 pts below the national average of 20.3%
No health insurance (18–64)2.4% 8.9 pts below the national average of 11.3%
Depression21.9% same as the national average of 21.9%
No leisure-time physical activity16% 9.4 pts below the national average of 25.4%
Arthritis25.4% same as the national average of 25.1%
Binge drinking16.8% 0.8 pts above the national average of 16%
Taking blood pressure medication77.2% 2.5 pts above the national average of 74.7%
Cancer (non-skin)10.4% 2.7 pts above the national average of 7.7%
Current asthma11.3% 0.9 pts above the national average of 10.4%
Coronary heart disease5.3% 0.9 pts below the national average of 6.2%
Routine check-up in past year83.1% 6.4 pts above the national average of 76.7%
Cholesterol screening92.8% 6.9 pts above the national average of 85.9%
Cognitive disability9.8% 5 pts below the national average of 14.8%
Colorectal screening75.4% 11.1 pts above the national average of 64.3%
COPD4.7% 1.9 pts below the national average of 6.6%
Visited a dentist82.6% 21.3 pts above the national average of 61.3%
Any disability21.2% 9.5 pts below the national average of 30.7%
Lacks emotional support18.5% 6.3 pts below the national average of 24.8%
Food insecurity5.9% 11.2 pts below the national average of 17.1%
Received food stamps6.1% 8.2 pts below the national average of 14.3%
Hearing disability5.5% 1.2 pts below the national average of 6.7%
High cholesterol36.2% same as the national average of 36.2%
Housing insecurity5.8% 8 pts below the national average of 13.8%
Independent living disability5.1% 3.3 pts below the national average of 8.4%
Lacks transport4.3% 4.9 pts below the national average of 9.2%
Loneliness27.9% 6.5 pts below the national average of 34.4%
Mammography use86.8% 10.9 pts above the national average of 75.9%
Poor mental health (14+ days)12.9% 3.9 pts below the national average of 16.8%
Mobility disability8.8% 5.2 pts below the national average of 14%
Poor physical health (14+ days)10.4% 3.1 pts below the national average of 13.5%
Self-care disability2.2% 1.8 pts below the national average of 4%
Utility shut-off threat4.1% 4.7 pts below the national average of 8.8%
Sleeps under 7 hours30.8% 5.6 pts below the national average of 36.4%
Stroke2.5% 0.9 pts below the national average of 3.4%
All natural teeth lost5.6% 7.4 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 establishments155
People employed859
Annual payroll$50,849,000
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 40.7% of US census tracts
FEMA ratingVery Low to Relatively Low across the 2 census tracts this ZIP code covers
Expected annual loss70.8 out of 100
Community resilience93.2 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.

Drought90.1Relatively Low at its worst in this ZIP code
Landslide84.7Relatively Low at its worst in this ZIP code
Ice storm82.6Relatively Moderate at its worst in this ZIP code
Hurricane79.2Relatively Moderate at its worst in this ZIP code
Wildfire78Relatively Low at its worst in this ZIP code
Earthquake67.6Relatively Low at its worst in this ZIP code
River flooding66.1Relatively Moderate at its worst in this ZIP code
Lightning50.3Relatively Moderate at its worst in this ZIP code
Tornado47.9Relatively Low at its worst in this ZIP code
Strong wind41.2Relatively Low at its worst in this ZIP code
Heat wave34.3Relatively Low at its worst in this ZIP code
Cold wave34.2Relatively Low at its worst in this ZIP code
Winter weather24.1Relatively Low at its worst in this ZIP code
Hail10.4Very 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$190,526$101,341$78,538
Income per person$90,836$56,284$43,289
Poverty rate2.2%10%12.4%
Median home value$874,900$525,800$303,400
Median gross rent$736$1,687$1,348
Homeownership94.5%62.6%65%
Bachelor's degree or higher69.2%46.6%35%
Unemployment rate3.1%5.1%5.2%
Works from home19%16.7%13.5%
Born outside the US6.3%17.7%13.9%
Median age49.54038.7
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 stationGROVELAND, MA US7.9 km away
Rain in a year49 in
Snow in a year67 in

Average high and low by month

January35.3°F / 17.3°F3.7 in rain, 17.9 in snow
February38.1°F / 18.8°F3.61 in rain, 17.2 in snow
March45.7°F / 26°F4.95 in rain, 14.4 in snow
April58.1°F / 35.9°F4.16 in rain, 2.4 in snow
May68.9°F / 45.8°F3.83 in rain
June77.6°F / 55.6°F4.2 in rain
July83.1°F / 61.6°F3.56 in rain
August81.3°F / 59.7°F3.37 in rain
September73.4°F / 52.1°F4.08 in rain
October61.7°F / 40.5°F4.92 in rain, 0.4 in snow
November50.6°F / 31.5°F3.88 in rain, 1.8 in snow
December40.6°F / 23.1°F4.72 in rain, 13 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.

Boxford School District50% of this ZIP code's land area
Masconomet School District50% 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 vulnerability2more vulnerable than 2% of US census tracts
Socioeconomic status4more vulnerable than 4% of US census tracts
Household characteristics36more vulnerable than 36% of US census tracts
Racial and ethnic minority status11more vulnerable than 11% of US census tracts
Housing type and transport2more vulnerable than 2% of US census tracts
Walkability5 out of 20Least walkable
Nearby ZIP codes

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

01885 West Boxford, MA5.3 km away
01833 Georgetown, MA5.9 km away
01983 Topsfield, MA6.7 km away
01845 North Andover, MA8 km away
01834 Groveland, MA8.2 km away
01969 Rowley, MA9.3 km away
01949 Middleton, MA9.5 km away
01835 Haverhill, MA10.1 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.

Essex County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area23.59 sq mi
Water area0.85 sq mi
Population density349 people per sq mi
Latitude, longitude42.6797, -71.0114

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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