Residential delivery area · Massachusetts
ZIP Code 02122: Dorchester, MA
ZIP code 02122 uses the postal name Dorchester, Massachusetts and lies entirely in Suffolk County (Census 2020 ZIP-county file). About 23,000 people live there (Census Bureau, ACS 2020-2024), the least populous of Dorchester's 3 residential ZIP codes. Median household income is $86,150 (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
- Metro area
- Boston-Cambridge-Newton, MA-NH
- House districts
- MA-8 (69%), MA-7 (31%) 119th Congress, by share of land
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 1.7 sq mi · 13,836 people per sq mi
Where is ZIP code 02122?
02122 centers on 42.295°, -71.053° and covers 1.7 square miles of land plus 0.2 of water. It borders 5 ZIP codes: 02124, 02171, 02125, 02121, 02186.
The map draws ZIP code areas only. For the streets inside 02122, 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).
How does 02122 compare with the rest of Dorchester?
| Measure | 02122 | In Dorchester | In Suffolk County | In MA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 23,479 | 3rd of 3 | 18th of 37 | 104th of 539 |
| Median household income | $86k | 1st of 3 | 19th of 29 | 308th of 406 |
| Median home value | $670k | 1st of 3 | 18th of 30 | 136th of 449 |
Its median household income is higher than in 69% 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 02122?
The 2020 Census counted 24,385 people in 02122; the ACS, which samples households over 2020-2024, estimates 23,479. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 23,479
- 2020 Census count
- 24,385
- Households
- 9,299
- Median age
- 37.8
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 02122?
Of the 23,479 people the ACS estimates in 02122, 17.5% are under 18 and 15.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (34.6%), then Black (not Hispanic) (23.5%).
- Under 1817.5%
- 18 to 6467.3%
- 65 and older15.2%
- White, not Hispanic34.6%
- Black, not Hispanic23.5%
- Hispanic or Latino15.7%
- Other or two or more13.1%
- Asian, not Hispanic13.1%
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 02122 earn?
Median household income is $86,150 (ACS 2020-2024), the 19th highest of the 29 ranked ZIP codes in Suffolk County.
- Median household income
- $86,150±$8,962
- Income per person
- $45,990
- Below the poverty line
- 12.8%
- Unemployed (of the labor force)
- 8.9%
- Adults 25+ with a bachelor's degree
- 38.8%
- Adjusted gross income per tax return, 2022
- $69,14512,360 returns; wages 85% 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 02122?
FHFA's house price index for 02122, built from repeat sales and appraisals of the same homes, rose 99% from 2015 to 2025 and rose 33% from 2020 to 2025, and moved +6.4% in 2025.
- Median home value (owners' estimate)
- $669,900
- Median gross rent
- $2,209
- Homes owned by their occupants
- 44.8%
- Housing units
- 10,133
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 02122?
558 business establishments had a location in this ZIP code in 2023, 10 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade89
- Health care and social assistance87
- Other services (except public administration)81
- Construction76
- Accommodation and food services54
- Professional, scientific, and technical services36
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 02122?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 02124 | Dorchester Center | 56,216 | $82k | 1.3 mi |
| 02171 | Quincy | 20,164 | $107k | 1.4 mi |
| 02125 | Dorchester | 33,662 | $83k | 1.4 mi |
| 02121 | Dorchester | 29,040 | $43k | 1.9 mi |
| 02186 | Milton | 28,735 | $188k | 4.0 mi |
| 02126 | Mattapan | 26,583 | $66k | 2.3 mi (near) |
| 02119 | Roxbury | 27,377 | $49k | 2.6 mi (near) |
| 02170 | Quincy | 18,809 | $104k | 2.7 mi (near) |
| 02127 | South Boston | 36,769 | $164k | 2.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.