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US ZIP Code Profile

ZIP Code 02155
Medford, Massachusetts

ZIP code 02155 is in Medford, located in Middlesex County, Massachusetts, within the Boston-Cambridge-Newton metro area. Its 2020 Census population was 61,483. The estimated median adjusted gross income per tax return is $70,809, and about 12% of filers report $200,000 or more.

2020 Population
61,483
Census ZCTA
County
Middlesex
FIPS 25017
Median income (est.)
$70,809
IRS SOI 2022
Land Area
8.196 mi²
+ 0.568 mi² water

01Location & Geography

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

Primary CityMedford, 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
Coordinates42.42384, -71.10767
Land / Water Area8.196 mi² land · 0.568 mi² water

02Income & Economics

Distribution of the 31,350 individual tax returns filed in 02155 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
19.2%
$25K–$50K
16.9%
$50K–$75K
16.7%
$75K–$100K
12.8%
$100K–$200K
22.1%
$200K+
12.3%
The $200,000+ bracket accounts for 41% of 02155's total adjusted gross income, from 12% of returns — a concentration that drives the gap between the median ($70,809) 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 02155's IRS income metrics, 2020–2022.

Median income (2021→2022)
$70,809
▲ 5.8%
Filers earning $200K+
12.3%
▲ 1.2 pt
Total filers
31,350
▲ 2.2%
GET /zipc/v2/zipcodes/02155/soi?year=… $61K 2020 $67K 2021 $71K 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 02155 ZCTA.

2000
56,203
 
2010
57,964
▲ +3.1%
2020
61,483
▲ +6.1%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 02155. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 02155

Medford and its immediate neighbors, sorted by distance.

3 mi
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Distance from 02155 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypeBranch
Carrier Route SortB
USPS Finance Number240066
City AliasesMedford

07Frequently Asked Questions

What county is ZIP code 02155 in?

ZIP code 02155 is in Middlesex County, Massachusetts (county FIPS code 25017).

What city is ZIP code 02155?

The primary USPS city for 02155 is Medford, MA.

What metro area (MSA) is 02155 in?

02155 is part of the Boston-Cambridge-Newton, MA-NH Metro Area (MSA code 14460).

What is the population of ZIP code 02155?

The 2020 Census population of 02155 was 61,483 residents.

What is the median income in ZIP code 02155?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 02155 is about $70,809, 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.