Postal Codes

01721 ZIP Code

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ZIP code 01721 covers Ashland, Massachusetts, with a population of about 18,694 and a median household income of $127,106.

Population
18,6941,515 per square mile
Median age
41.73 points above the US average
Median household income
$127,1061.3× the Massachusetts median
Poverty rate
4.1%8.3 points below the US average
Typical home value
$675,937up 28.3% in five years
Median rent
$2,3341.4× the Massachusetts median
Degree or higher
59.5%24.5 points above the US average
Homeownership
75.5%10.5 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
431

Where 01721 is

Ashland, 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

Population18,694
Median age41.7
Family households69.4%
Born outside the US21.9%
Speaks a language other than English at home28.3%
White (non-Hispanic)66%
Black (non-Hispanic)5.1%
Asian (non-Hispanic)15%
Hispanic or Latino7.6%
Veterans3.6%
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$127,106
Income per person$69,216
Poverty rate4.1%
Households on SNAP or cash assistance7.2%

Household income distribution

Under $10k3.6%
$10–15k1.0%
$15–20k0.7%
$20–25k1.7%
$25–30k1.8%
$30–35k2.6%
$35–40k0.8%
$40–45k1.1%
$45–50k1.4%
$50–60k2.2%
$60–75k6.7%
$75–100k10.7%
$100–125k14.3%
$125–150k7.9%
$150–200k11.3%
$200k or more32.3%

Income as declared to the IRS

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

Tax returns filed9,500
Mean adjusted gross income$134,173
Returns declaring $200,000 or more19.6%
Returns, under $25k21.4%
Returns, $25k–$50k13.6%
Returns, $50k–$75k11.9%
Returns, $75k–$100k9.6%
Returns, $100k–$200k24.0%
Returns, $200k or more19.6%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$586,000
Median gross rent$2,334
Rent as a share of household income29.4%
Owner-occupied75.5%
Vacant homes5.3%
Median year built1983

What the homes are

Detached house55.7%
Attached house13.8%
2 to 4 units15.1%
5 to 19 units7.1%
20 or more units8.3%
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$675,937as of 2026-07
Typical home value, 1 yeardown 0.1%
Typical home value, 5 yearsup 28.3%
Typical home value, 10 yearsup 75.6%
Typical asking rent$2,844as of 2026-07
Typical home value since 2000
200020132026$676,655$210,127

$210,127 in 2000 to $675,937 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate5.1%
Bachelor's degree or higher59.5%
High school diploma or higher98%
Works from home20.9%
Drives to work alone63.7%
Takes public transport5.6%
Commutes 45 minutes or more32.7%
Health

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

Obesity24% 9.4 pts below the national average of 33.4%
Diagnosed diabetes8.4% 3.6 pts below the national average of 12%
Currently smokes9% 4.2 pts below the national average of 13.2%
High blood pressure28.1% 6 pts below the national average of 34.1%
Fair or poor general health12.5% 7.8 pts below the national average of 20.3%
No health insurance (18–64)3.2% 8.1 pts below the national average of 11.3%
Depression24.1% 2.2 pts above the national average of 21.9%
No leisure-time physical activity17% 8.4 pts below the national average of 25.4%
Arthritis24.3% 0.8 pts below the national average of 25.1%
Binge drinking16.5% 0.5 pts above the national average of 16%
Taking blood pressure medication73.8% 0.9 pts below the national average of 74.7%
Cancer (non-skin)8.7% 1 pts above the national average of 7.7%
Current asthma11.4% 1 pts above the national average of 10.4%
Coronary heart disease4.8% 1.4 pts below the national average of 6.2%
Routine check-up in past year80.8% 4.1 pts above the national average of 76.7%
Cholesterol screening92% 6.1 pts above the national average of 85.9%
Cognitive disability11.4% 3.4 pts below the national average of 14.8%
Colorectal screening74.4% 10.1 pts above the national average of 64.3%
COPD4.5% 2.1 pts below the national average of 6.6%
Visited a dentist76.2% 14.9 pts above the national average of 61.3%
Any disability23.1% 7.6 pts below the national average of 30.7%
Lacks emotional support20.8% 4 pts below the national average of 24.8%
Food insecurity8% 9.1 pts below the national average of 17.1%
Received food stamps8.8% 5.5 pts below the national average of 14.3%
Hearing disability5.1% 1.6 pts below the national average of 6.7%
High cholesterol35.9% same as the national average of 36.2%
Housing insecurity8.2% 5.6 pts below the national average of 13.8%
Independent living disability5.8% 2.6 pts below the national average of 8.4%
Lacks transport5.8% 3.4 pts below the national average of 9.2%
Loneliness32.8% 1.6 pts below the national average of 34.4%
Mammography use84.7% 8.8 pts above the national average of 75.9%
Poor mental health (14+ days)14.5% 2.3 pts below the national average of 16.8%
Mobility disability9.3% 4.7 pts below the national average of 14%
Poor physical health (14+ days)10.1% 3.4 pts below the national average of 13.5%
Self-care disability2.4% 1.6 pts below the national average of 4%
Utility shut-off threat5% 3.8 pts below the national average of 8.8%
Sleeps under 7 hours31.1% 5.3 pts below the national average of 36.4%
Stroke2.5% 0.9 pts below the national average of 3.4%
All natural teeth lost5.8% 7.2 pts below the national average of 13%
Vision disability3% 2.6 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments431
People employed4,881
Annual payroll$247,110,000
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 11.9% of US census tracts
FEMA ratingVery Low to Relatively Low across the 5 census tracts this ZIP code covers
Expected annual loss17.3 out of 100
Community resilience83.7 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.

Ice storm77.9Relatively Moderate at its worst in this ZIP code
Hurricane68.3Relatively Low at its worst in this ZIP code
Landslide50.6Very Low at its worst in this ZIP code
Wildfire50.1Very Low at its worst in this ZIP code
Earthquake43Relatively Low at its worst in this ZIP code
Strong wind31.4Relatively Low at its worst in this ZIP code
Cold wave31.1Relatively Low at its worst in this ZIP code
Lightning29.1Relatively Low at its worst in this ZIP code
Tornado28.9Relatively Low at its worst in this ZIP code
River flooding25.1Relatively Moderate at its worst in this ZIP code
Heat wave23.8Relatively Low at its worst in this ZIP code
Winter weather20.5Relatively Low at its worst in this ZIP code
Hail4.9Very 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$127,106$101,341$78,538
Income per person$69,216$56,284$43,289
Poverty rate4.1%10%12.4%
Median home value$586,000$525,800$303,400
Median gross rent$2,334$1,687$1,348
Homeownership75.5%62.6%65%
Bachelor's degree or higher59.5%46.6%35%
Unemployment rate5.1%5.1%5.2%
Works from home20.9%16.7%13.5%
Born outside the US21.9%17.7%13.9%
Median age41.74038.7
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 stationNATICK, MA US9.9 km away
Rain in a year47 in
Snow in a year46 in

Average high and low by month

January35.2°F / 17.5°F3.37 in rain, 13.8 in snow
February38.2°F / 17.6°F3.07 in rain, 8.9 in snow
March46.1°F / 25.4°F3.95 in rain, 8.2 in snow
April58°F / 35.1°F4.07 in rain, 2.2 in snow
May67.7°F / 45.6°F3.78 in rain
June76.5°F / 55.9°F4.14 in rain
July81.8°F / 61.7°F3.85 in rain
August80.4°F / 59.4°F3.82 in rain
September73°F / 51.8°F4.21 in rain
October61.7°F / 39.7°F4.83 in rain
November51.3°F / 31.1°F3.74 in rain, 1.1 in snow
December40.7°F / 22.9°F4.43 in rain, 11.5 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%.

Ashland 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 vulnerability15more vulnerable than 15% of US census tracts
Socioeconomic status8more vulnerable than 8% of US census tracts
Household characteristics25more vulnerable than 25% of US census tracts
Racial and ethnic minority status45more vulnerable than 45% of US census tracts
Housing type and transport33more vulnerable than 33% of US census tracts
Walkability7.5 out of 20Below average
Nearby ZIP codes

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

01702 Framingham, MA3.7 km away
01745 Fayville, MA5.7 km away
01701 Framingham, MA5.9 km away
01746 Holliston, MA6 km away
01770 Sherborn, MA6.9 km away
01748 Hopkinton, MA7.1 km away
01772 Southborough, MA7.5 km away
01784 Woodville, MA8.7 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.

Middlesex County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area12.34 sq mi
Water area0.54 sq mi
Population density1,515 people per sq mi
Latitude, longitude42.2539, -71.4583

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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