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US ZIP Code Profile

ZIP Code 02145
Somerville, Massachusetts

ZIP code 02145 is in Somerville, located in Middlesex County, Massachusetts, within the Boston-Cambridge-Newton metro area. Its 2020 Census population was 27,520. The estimated median adjusted gross income per tax return is $60,833, and about 9% of filers report $200,000 or more.

2020 Population
27,520
Census ZCTA
County
Middlesex
FIPS 25017
Median income (est.)
$60,833
IRS SOI 2022
Land Area
1.396 mi²
+ 0.089 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
Coordinates42.39158, -71.08991
Land / Water Area1.396 mi² land · 0.089 mi² water

02Income & Economics

Distribution of the 15,300 individual tax returns filed in 02145 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
19.7%
$25K–$50K
21.8%
$50K–$75K
19.6%
$75K–$100K
12.5%
$100K–$200K
17.4%
$200K+
8.9%
The $200,000+ bracket accounts for 36% of 02145's total adjusted gross income, from 9% of returns — a concentration that drives the gap between the median ($60,833) 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 02145's IRS income metrics, 2020–2022.

Median income (2021→2022)
$60,833
▲ 7.8%
Filers earning $200K+
8.9%
▲ 0.8 pt
Total filers
15,300
▲ 3.9%
GET /zipc/v2/zipcodes/02145/soi?year=… $52K 2020 $56K 2021 $61K 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 02145 ZCTA.

2000
26,887
 
2010
25,439
▼ -5.4%
2020
27,520
▲ +8.2%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 02145. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 02145

Somerville and its immediate neighbors, sorted by distance.

3 mi
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Distance from 02145 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 AliasesWinter Hill, Somerville

07Frequently Asked Questions

What county is ZIP code 02145 in?

ZIP code 02145 is in Middlesex County, Massachusetts (county FIPS code 25017).

What city is ZIP code 02145?

The primary USPS city for 02145 is Somerville, MA.

What metro area (MSA) is 02145 in?

02145 is part of the Boston-Cambridge-Newton, MA-NH Metro Area (MSA code 14460).

What is the population of ZIP code 02145?

The 2020 Census population of 02145 was 27,520 residents.

What is the median income in ZIP code 02145?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 02145 is about $60,833, with around 9% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.