Residential delivery area · Massachusetts
ZIP Code 02125: Dorchester, MA
ZIP code 02125 uses the postal name Dorchester, Massachusetts and lies entirely in Suffolk County (Census 2020 ZIP-county file). About 34,000 people live there (Census Bureau, ACS 2020-2024), the most populous of Dorchester's 3 residential ZIP codes. Median household income is $82,953 (Census Bureau, ACS 2020-2024). Most of its land (100%) lies in the city of Boston.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Dorchester · 3 residential ZIPs
- County
- Suffolk County
- Census places
- Boston
- Neighborhood
- Dorchester North GeoNames
- Metro area
- Boston-Cambridge-Newton, MA-NH
- House districts
- MA-8 (67%), MA-7 (33%) 119th Congress, by share of land
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 2.2 sq mi · 15,527 people per sq mi
Where is ZIP code 02125?
02125 centers on 42.316°, -71.056° and covers 2.2 square miles of land plus 0.3 of water. It borders 5 ZIP codes: 02122, 02119, 02127, 02118, 02121.
The map draws ZIP code areas only. For the streets inside 02125, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 02125 compare with the rest of Dorchester?
| Measure | 02125 | In Dorchester | In Suffolk County | In MA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 33,662 | 1st of 3 | 9th of 37 | 43rd of 539 |
| Median household income | $83k | 2nd of 3 | 20th of 29 | 321st of 406 |
| Median home value | $657k | 2nd of 3 | 23rd of 30 | 146th of 449 |
Its median household income is higher than in 65% of U.S. residential ZIP codes, and it is denser than 99% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 02125?
The 2020 Census counted 34,926 people in 02125; the ACS, which samples households over 2020-2024, estimates 33,662. Between the 2010 and 2020 censuses its population grew 4.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 33,662
- 2020 Census count
- 34,926+4.9% since 2010 (33,295)
- Households
- 14,246
- Median age
- 34.4
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 02125?
Of the 33,662 people the ACS estimates in 02125, 17.5% are under 18 and 12.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (29.8%), then Black (not Hispanic) (23.5%).
- Under 1817.5%
- 18 to 6470.4%
- 65 and older12.0%
- White, not Hispanic29.8%
- Black, not Hispanic23.5%
- Hispanic or Latino19.3%
- Other or two or more14.4%
- Asian, not Hispanic12.9%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 02125 earn?
Median household income is $82,953 (ACS 2020-2024), the 20th highest of the 29 ranked ZIP codes in Suffolk County. It is not measurably different from 2015-2019 ($70,735 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $82,953±$12,485
- Income per person
- $47,203
- Below the poverty line
- 23.2%
- Unemployed (of the labor force)
- 7.4%
- Adults 25+ with a bachelor's degree
- 43.7%
- Adjusted gross income per tax return, 2022
- $71,92017,340 returns; wages 84% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 02125?
FHFA's house price index for 02125, built from repeat sales and appraisals of the same homes, rose 110% from 2015 to 2025 and rose 36% from 2020 to 2025, and moved +8.4% in 2025.
- Median home value (owners' estimate)
- $657,100
- Median gross rent
- $1,949
- Homes owned by their occupants
- 34.9%
- Housing units
- 15,307
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 02125?
518 business establishments had a location in this ZIP code in 2023, 44 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade88
- Other services (except public administration)81
- Accommodation and food services67
- Health care and social assistance65
- Construction39
- Professional, scientific, and technical services33
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 02125?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 02122 | Dorchester | 23,479 | $86k | 1.4 mi |
| 02119 | Roxbury | 27,377 | $49k | 1.6 mi |
| 02127 | South Boston | 36,769 | $164k | 1.6 mi |
| 02118 | Boston | 28,946 | $98k | 1.7 mi |
| 02121 | Dorchester | 29,040 | $43k | 1.8 mi |
| 02171 | Quincy | 20,164 | $107k | 2.3 mi (near) |
| 02124 | Dorchester Center | 56,216 | $82k | 2.3 mi (near) |
| 02205 | Boston | 0 | – | 2.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.