Postal Codes

02129 ZIP Code

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ZIP code 02129 covers Charlestown, Massachusetts, with a population of about 19,994 and a median household income of $157,192.

Population
19,99414,770 per square mile
Median age
362.7 points below the US average
Median household income
$157,1921.6× the Massachusetts median
Poverty rate
6.3%6.1 points below the US average
Typical home value
$1,023,177up 16.3% in five years
Median rent
$2,2581.3× the Massachusetts median
Degree or higher
71.4%36.4 points above the US average
Homeownership
49.6%15.4 points below the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
538

Where 02129 is

Charlestown, 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

Population19,994
Median age36
Family households50%
Born outside the US13%
Speaks a language other than English at home18.2%
White (non-Hispanic)71.3%
Black (non-Hispanic)4.6%
Asian (non-Hispanic)8.6%
Hispanic or Latino9.6%
Veterans3%
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$157,192
Income per person$97,454
Poverty rate6.3%
Households on SNAP or cash assistance13.8%

Household income distribution

Under $10k2.7%
$10–15k3.2%
$15–20k1.7%
$20–25k3.9%
$25–30k1.3%
$30–35k3.1%
$35–40k2.1%
$40–45k1.1%
$45–50k0.9%
$50–60k3.0%
$60–75k4.2%
$75–100k7.4%
$100–125k7.7%
$125–150k5.4%
$150–200k11.3%
$200k or more41.0%

Income as declared to the IRS

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

Tax returns filed9,750
Mean adjusted gross income$190,158
Returns declaring $200,000 or more25.4%
Returns, under $25k15.3%
Returns, $25k–$50k12.4%
Returns, $50k–$75k12.0%
Returns, $75k–$100k11.0%
Returns, $100k–$200k23.9%
Returns, $200k or more25.4%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$926,000
Median gross rent$2,258
Rent as a share of household income24.4%
Owner-occupied49.6%
Vacant homes6%
Median year built1938

What the homes are

Detached house5.1%
Attached house13.8%
2 to 4 units33.2%
5 to 19 units17.2%
20 or more units30.6%
Boat, RV or van0.1%
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$1,023,177as of 2026-07
Typical home value, 1 yearup 2.3%
Typical home value, 5 yearsup 16.3%
Typical home value, 10 yearsup 42.2%
Typical asking rent$3,627as of 2026-07
Typical asking rent, 1 yearup 7%
Typical asking rent, 5 yearsup 33%
Typical asking rent, 10 yearsup 54.2%
Typical home value since 2000
200020132026$1,023,177$297,718

$297,718 in 2000 to $1,023,177 in 2026.

Typical asking rent
201520202026$3,627$2,298

$2,298 in 2015 to $3,627 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.5%
Bachelor's degree or higher71.4%
High school diploma or higher94.3%
Works from home24.1%
Drives to work alone29.3%
Takes public transport18.5%
Commutes 45 minutes or more19%
Health

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

Obesity20.6% 12.8 pts below the national average of 33.4%
Diagnosed diabetes6.4% 5.6 pts below the national average of 12%
Currently smokes8.3% 4.9 pts below the national average of 13.2%
High blood pressure22.7% 11.4 pts below the national average of 34.1%
Fair or poor general health11.4% 8.9 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%
Depression24.3% 2.4 pts above the national average of 21.9%
No leisure-time physical activity16.5% 8.9 pts below the national average of 25.4%
Arthritis17.7% 7.4 pts below the national average of 25.1%
Binge drinking23.1% 7.1 pts above the national average of 16%
Taking blood pressure medication70.8% 3.9 pts below the national average of 74.7%
Cancer (non-skin)6.6% 1.1 pts below the national average of 7.7%
Current asthma10.8% same as the national average of 10.4%
Coronary heart disease3.7% 2.5 pts below the national average of 6.2%
Routine check-up in past year78.4% 1.7 pts above the national average of 76.7%
Cholesterol screening89.8% 3.9 pts above the national average of 85.9%
Cognitive disability11.2% 3.6 pts below the national average of 14.8%
Colorectal screening69.4% 5.1 pts above the national average of 64.3%
COPD3.8% 2.8 pts below the national average of 6.6%
Visited a dentist72.1% 10.8 pts above the national average of 61.3%
Any disability19.4% 11.3 pts below the national average of 30.7%
Lacks emotional support20.4% 4.4 pts below the national average of 24.8%
Food insecurity9.1% 8 pts below the national average of 17.1%
Received food stamps10.1% 4.2 pts below the national average of 14.3%
Hearing disability4.1% 2.6 pts below the national average of 6.7%
High cholesterol31.5% 4.7 pts below the national average of 36.2%
Housing insecurity9.1% 4.7 pts below the national average of 13.8%
Independent living disability5.4% 3 pts below the national average of 8.4%
Lacks transport6.2% 3 pts below the national average of 9.2%
Loneliness34.7% same as the national average of 34.4%
Mammography use83.6% 7.7 pts above the national average of 75.9%
Poor mental health (14+ days)15.3% 1.5 pts below the national average of 16.8%
Mobility disability7.2% 6.8 pts below the national average of 14%
Poor physical health (14+ days)9% 4.5 pts below the national average of 13.5%
Self-care disability2% 2 pts below the national average of 4%
Utility shut-off threat5.8% 3 pts below the national average of 8.8%
Sleeps under 7 hours29.7% 6.7 pts below the national average of 36.4%
Stroke1.9% 1.5 pts below the national average of 3.4%
All natural teeth lost6.6% 6.4 pts below the national average of 13%
Vision disability2.8% 2.8 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments538
People employed13,503
Annual payroll$1,127,268,000
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 11.7% of US census tracts
FEMA ratingVery Low
Expected annual loss24.2 out of 100
Community resilience92.7 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.

Coastal flooding79.1Relatively High at its worst in this ZIP code
Hurricane72.6Relatively Low at its worst in this ZIP code
Earthquake62Relatively Low at its worst in this ZIP code
Landslide43.3Very Low at its worst in this ZIP code
Heat wave39.8Relatively Low at its worst in this ZIP code
Lightning39.5Relatively Low at its worst in this ZIP code
Hail37.3Relatively Low at its worst in this ZIP code
Cold wave35.7Relatively Low at its worst in this ZIP code
Tornado25.8Relatively Low at its worst in this ZIP code
Ice storm18.8Very Low at its worst in this ZIP code
Winter weather18.6Relatively Low at its worst in this ZIP code
River flooding16.9Relatively Low at its worst in this ZIP code
Strong wind14.1Very 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$157,192$101,341$78,538
Income per person$97,454$56,284$43,289
Poverty rate6.3%10%12.4%
Median home value$926,000$525,800$303,400
Median gross rent$2,258$1,687$1,348
Homeownership49.6%62.6%65%
Bachelor's degree or higher71.4%46.6%35%
Unemployment rate2.5%5.1%5.2%
Works from home24.1%16.7%13.5%
Born outside the US13%17.7%13.9%
Median age364038.7
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 stationBOSTON LOGAN INTL AP, MA US4.7 km away
Rain in a year44 in
Snow in a year49 in

Average high and low by month

January36.8°F / 23.1°F3.39 in rain, 14.3 in snow
February39°F / 24.6°F3.21 in rain, 14.4 in snow
March45.5°F / 31.1°F4.17 in rain, 9 in snow
April56.4°F / 40.8°F3.63 in rain, 1.6 in snow
May66.5°F / 50.3°F3.25 in rain
June76.2°F / 59.7°F3.89 in rain
July82.1°F / 66°F3.27 in rain
August80.4°F / 65.1°F3.23 in rain
September73.1°F / 58.2°F3.56 in rain
October62.1°F / 47.5°F4.03 in rain, 0.2 in snow
November51.6°F / 37.9°F3.66 in rain, 0.7 in snow
December42.2°F / 29.2°F4.3 in rain, 9 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 supermarket31% 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%.

Boston 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 vulnerability38more vulnerable than 38% of US census tracts
Socioeconomic status22more vulnerable than 22% of US census tracts
Household characteristics38more vulnerable than 38% of US census tracts
Racial and ethnic minority status43more vulnerable than 43% of US census tracts
Housing type and transport76more vulnerable than 76% of US census tracts
Walkability15.8 out of 20Most walkable
Nearby ZIP codes

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

02113 Boston, MA1.5 km away
02222 Boston, MA1.5 km away
02203 Boston, MA1.8 km away
02114 Boston, MA1.9 km away
02141 Cambridge, MA2 km away
02109 Boston, MA2.1 km away
02112 Boston, MA2.2 km away
02133 Boston, MA2.2 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.

Suffolk County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area1.35 sq mi
Water area0.49 sq mi
Population density14,770 people per sq mi
Latitude, longitude42.3778, -71.0627

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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