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US ZIP Code Profile

ZIP Code 02143
Somerville, Massachusetts

ZIP code 02143 is in Somerville, located in Middlesex County, Massachusetts, within the Boston-Cambridge-Newton metro area. Its 2020 Census population was 26,022. The estimated median adjusted gross income per tax return is $68,881, and about 12% of filers report $200,000 or more.

2020 Population
26,022
Census ZCTA
County
Middlesex
FIPS 25017
Median income (est.)
$68,881
IRS SOI 2022
Land Area
1.544 mi²
+ 0 mi² water

01Location & Geography

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

Primary CitySomerville, MA
CountyMiddlesex County (FIPS 25017)
StateMassachusetts (FIPS 25)
Metro Area (MSA)Boston-Cambridge-Newton, MA-NH Metro Area (14460)
Census Region / DivisionNortheast Region · New England Division
Coordinates42.38141, -71.09671
Land / Water Area1.544 mi² land · 0 mi² water

02Income & Economics

Distribution of the 14,860 individual tax returns filed in 02143 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
16.2%
$25K–$50K
19.3%
$50K–$75K
19.2%
$75K–$100K
13.4%
$100K–$200K
20.1%
$200K+
11.8%
The $200,000+ bracket accounts for 44% of 02143's total adjusted gross income, from 12% of returns — a concentration that drives the gap between the median ($68,881) 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 02143's IRS income metrics, 2020–2022.

Median income (2021→2022)
$68,881
▲ 5.4%
Filers earning $200K+
11.8%
▲ 0.5 pt
Total filers
14,860
▲ 3.8%
GET /zipc/v2/zipcodes/02143/soi?year=… $61K 2020 $65K 2021 $69K 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 02143 ZCTA.

2000
25,095
 
2010
24,514
▼ -2.3%
2020
26,022
▲ +6.2%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 02143. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 02143

Somerville and its immediate neighbors, sorted by distance.

3 mi
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Distance from 02143 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 Number240070
City AliasesE Somerville, East Somerville, Somerville

07Frequently Asked Questions

What county is ZIP code 02143 in?

ZIP code 02143 is in Middlesex County, Massachusetts (county FIPS code 25017).

What city is ZIP code 02143?

The primary USPS city for 02143 is Somerville, MA.

What metro area (MSA) is 02143 in?

02143 is part of the Boston-Cambridge-Newton, MA-NH Metro Area (MSA code 14460).

What is the population of ZIP code 02143?

The 2020 Census population of 02143 was 26,022 residents.

What is the median income in ZIP code 02143?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 02143 is about $68,881, with around 12% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.