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US ZIP Code Profile

ZIP Code 02125
Dorchester, Massachusetts

ZIP code 02125 is in Dorchester, located in Suffolk County, Massachusetts, within the Boston-Cambridge-Newton metro area. Its 2020 Census population was 34,926. The estimated median adjusted gross income per tax return is $47,753, and about 5% of filers report $200,000 or more.

2020 Population
34,926
Census ZCTA
County
Suffolk
FIPS 25025
Median income (est.)
$47,753
IRS SOI 2022
Land Area
2.133 mi²
+ 0.308 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityDorchester, MA
CountySuffolk County (FIPS 25025)
StateMassachusetts (FIPS 25)
Metro Area (MSA)Boston-Cambridge-Newton, MA-NH Metro Area (14460)
Census Region / DivisionNortheast Region · New England Division
Coordinates42.31568, -71.05556
Land / Water Area2.133 mi² land · 0.308 mi² water

02Income & Economics

Distribution of the 17,340 individual tax returns filed in 02125 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
26.6%
$25K–$50K
25.7%
$50K–$75K
19.1%
$75K–$100K
11.0%
$100K–$200K
13.0%
$200K+
4.6%
The $200,000+ bracket accounts for 28% of 02125's total adjusted gross income, from 5% of returns — a concentration that drives the gap between the median ($47,753) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 02125's IRS income metrics, 2020–2022.

Median income (2021→2022)
$47,753
▲ 6.3%
Filers earning $200K+
4.6%
▲ 0.4 pt
Total filers
17,340
▲ 0.1%
GET /zipc/v2/zipcodes/02125/soi?year=… $42K 2020 $45K 2021 $48K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 02125 ZCTA.

2000
33,618
 
2010
33,295
▼ -1.0%
2020
34,926
▲ +4.9%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 02125. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 02125

Dorchester and its immediate neighbors, sorted by distance.

3 mi
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Distance from 02125 to any ZIP

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06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypeNon-Postal Community Name, former postal facility or place name
Carrier Route SortB
USPS Finance Number240799
City AliasesBoston, Dorchester, Uphams Corner

07Frequently Asked Questions

What county is ZIP code 02125 in?

ZIP code 02125 is in Suffolk County, Massachusetts (county FIPS code 25025).

What city is ZIP code 02125?

The primary USPS city for 02125 is Dorchester, MA.

What metro area (MSA) is 02125 in?

02125 is part of the Boston-Cambridge-Newton, MA-NH Metro Area (MSA code 14460).

What is the population of ZIP code 02125?

The 2020 Census population of 02125 was 34,926 residents.

What is the median income in ZIP code 02125?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 02125 is about $47,753, with around 5% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.