Postal Codes

02420 ZIP Code

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ZIP code 02420 covers Lexington, Massachusetts, with a population of about 16,287 and a median household income of $233,068.

Population
16,2872,314 per square mile
Median age
45.16.4 points above the US average
Median household income
$233,0682.3× the Massachusetts median
Poverty rate
2.4%10 points below the US average
Typical home value
$1,547,844up 31.3% in five years
Median rent
$2,7711.6× the Massachusetts median
Degree or higher
85.3%50.3 points above the US average
Homeownership
86.8%21.8 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
498

Where 02420 is

Lexington, 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

Population16,287
Median age45.1
Family households82.6%
Born outside the US30.9%
Speaks a language other than English at home40.1%
White (non-Hispanic)56.4%
Black (non-Hispanic)2.6%
Asian (non-Hispanic)31.3%
Hispanic or Latino3.9%
Veterans4.1%
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$233,068
Income per person$110,672
Poverty rate2.4%
Households on SNAP or cash assistance3.2%

Household income distribution

Under $10k1.3%
$10–15k0.4%
$15–20k0.9%
$20–25k1.3%
$25–30k0.9%
$30–35k1.1%
$35–40k0.5%
$40–45k1.4%
$45–50k1.5%
$50–60k0.7%
$60–75k3.3%
$75–100k4.2%
$100–125k5.0%
$125–150k7.3%
$150–200k13.1%
$200k or more57.3%

Income as declared to the IRS

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

Tax returns filed7,170
Mean adjusted gross income$352,895
Returns declaring $200,000 or more42.5%
Returns, under $25k19.7%
Returns, $25k–$50k7.4%
Returns, $50k–$75k7.1%
Returns, $75k–$100k6.1%
Returns, $100k–$200k17.2%
Returns, $200k or more42.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$1,148,100
Median gross rent$2,771
Rent as a share of household income26.7%
Owner-occupied86.8%
Vacant homes3.2%
Median year built1962

What the homes are

Detached house79.1%
Attached house9.8%
2 to 4 units5.1%
5 to 19 units2.8%
20 or more units3.2%
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$1,547,844as of 2026-07
Typical home value, 1 yearup 1.9%
Typical home value, 5 yearsup 31.3%
Typical home value, 10 yearsup 66.7%
Typical asking rent$4,275as of 2026-07
Typical home value since 2000
200020132026$1,547,844$483,261

$483,261 in 2000 to $1,547,844 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.8%
Bachelor's degree or higher85.3%
High school diploma or higher98%
Works from home29.3%
Drives to work alone54.5%
Takes public transport6.4%
Commutes 45 minutes or more25.5%
Health

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

Obesity19.2% 14.2 pts below the national average of 33.4%
Diagnosed diabetes8.8% 3.2 pts below the national average of 12%
Currently smokes5.7% 7.5 pts below the national average of 13.2%
High blood pressure28.7% 5.4 pts below the national average of 34.1%
Fair or poor general health10.1% 10.2 pts below the national average of 20.3%
No health insurance (18–64)2.1% 9.2 pts below the national average of 11.3%
Depression19.4% 2.5 pts below the national average of 21.9%
No leisure-time physical activity15% 10.4 pts below the national average of 25.4%
Arthritis23.9% 1.2 pts below the national average of 25.1%
Binge drinking13.7% 2.3 pts below the national average of 16%
Taking blood pressure medication77.5% 2.8 pts above the national average of 74.7%
Cancer (non-skin)9.5% 1.8 pts above the national average of 7.7%
Current asthma9.8% 0.6 pts below 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 year83.7% 7 pts above the national average of 76.7%
Cholesterol screening94.2% 8.3 pts above the national average of 85.9%
Cognitive disability8% 6.8 pts below the national average of 14.8%
Colorectal screening70.7% 6.4 pts above the national average of 64.3%
COPD3.5% 3.1 pts below the national average of 6.6%
Visited a dentist78.9% 17.6 pts above the national average of 61.3%
Any disability19.4% 11.3 pts below the national average of 30.7%
Lacks emotional support19.3% 5.5 pts below the national average of 24.8%
Food insecurity5.3% 11.8 pts below the national average of 17.1%
Received food stamps4.8% 9.5 pts below the national average of 14.3%
Hearing disability5% 1.7 pts below the national average of 6.7%
High cholesterol39% 2.8 pts above the national average of 36.2%
Housing insecurity5% 8.8 pts below the national average of 13.8%
Independent living disability4.3% 4.1 pts below the national average of 8.4%
Lacks transport3.9% 5.3 pts below the national average of 9.2%
Loneliness30.5% 3.9 pts below the national average of 34.4%
Mammography use85.9% 10 pts above the national average of 75.9%
Poor mental health (14+ days)10.7% 6.1 pts below the national average of 16.8%
Mobility disability8% 6 pts below the national average of 14%
Poor physical health (14+ days)8.3% 5.2 pts below the national average of 13.5%
Self-care disability1.8% 2.2 pts below the national average of 4%
Utility shut-off threat3% 5.8 pts below the national average of 8.8%
Sleeps under 7 hours28.9% 7.5 pts below the national average of 36.4%
Stroke2.3% 1.1 pts below the national average of 3.4%
All natural teeth lost5% 8 pts below the national average of 13%
Vision disability2.5% 3.1 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments498
People employed4,333
Annual payroll$267,443,000
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 27.3% of US census tracts
FEMA ratingRelatively Low
Expected annual loss48.7 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 storm87.8Relatively High at its worst in this ZIP code
Hurricane75.3Relatively Moderate at its worst in this ZIP code
Earthquake60.6Relatively Moderate at its worst in this ZIP code
River flooding52.9Relatively Moderate at its worst in this ZIP code
Landslide52.1Very Low at its worst in this ZIP code
Wildfire48.9Very Low at its worst in this ZIP code
Tornado35.8Relatively Low at its worst in this ZIP code
Lightning33.3Relatively Low at its worst in this ZIP code
Strong wind32.5Relatively Low at its worst in this ZIP code
Cold wave28.4Relatively Low at its worst in this ZIP code
Heat wave25.4Relatively Low at its worst in this ZIP code
Winter weather21.1Relatively Low at its worst in this ZIP code
Hail9Very 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$233,068$101,341$78,538
Income per person$110,672$56,284$43,289
Poverty rate2.4%10%12.4%
Median home value$1,148,100$525,800$303,400
Median gross rent$2,771$1,687$1,348
Homeownership86.8%62.6%65%
Bachelor's degree or higher85.3%46.6%35%
Unemployment rate3.8%5.1%5.2%
Works from home29.3%16.7%13.5%
Born outside the US30.9%17.7%13.9%
Median age45.14038.7
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 stationBEDFORD HANSCOM FLD, MA US6.2 km away
Rain in a year43 in

Average high and low by month

January36.8°F / 18.2°F2.9 in rain
February39.4°F / 19.3°F2.69 in rain
March47.5°F / 27.2°F3.85 in rain
April59.9°F / 37.1°F3.84 in rain
May70.4°F / 46.7°F3.36 in rain
June79.4°F / 56.2°F3.72 in rain
July85.1°F / 62°F3.51 in rain
August83.6°F / 60.3°F3.47 in rain
September75.7°F / 51.8°F3.54 in rain
October63.6°F / 40.8°F4.24 in rain
November52.4°F / 32.4°F3.72 in rain
December42°F / 24°F3.76 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 supermarket85% of this ZIP code's area
No vehicle and far from a supermarket1% 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 2 school districts, so the address decides which one, not the ZIP code.

Lexington School District93.7% of this ZIP code's land area
Burlington School District6.3% 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 vulnerability21more vulnerable than 21% of US census tracts
Socioeconomic status6more vulnerable than 6% of US census tracts
Household characteristics47more vulnerable than 47% of US census tracts
Racial and ethnic minority status59more vulnerable than 59% of US census tracts
Housing type and transport36more vulnerable than 36% of US census tracts
Walkability12.1 out of 20Above average
Nearby ZIP codes

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

02421 Lexington, MA1.7 km away
02475 Arlington Heights, MA5 km away
01731 Hanscom Afb, MA5.2 km away
02476 Arlington, MA5.6 km away
01805 Burlington, MA5.7 km away
01801 Woburn, MA5.7 km away
01730 Bedford, MA5.8 km away
01813 Woburn, MA5.9 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 area7.04 sq mi
Water area0.05 sq mi
Population density2,314 people per sq mi
Latitude, longitude42.4563, -71.2167

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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