Residential delivery area · Massachusetts
ZIP Code 02155: Medford, MA
ZIP code 02155 is in Medford, Massachusetts, entirely in Middlesex County (Census 2020 ZIP-county file). About 62,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $129,700 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Medford · its only residential ZIP
- County
- Middlesex County
- Census places
- Medford
- Metro area
- Boston-Cambridge-Newton, MA-NH
- House districts
- MA-5 (99%), MA-7 (1%) 119th Congress, by share of land
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 8.2 sq mi · 7,538 people per sq mi
- PO Box ZIPs
- 02153 also use the name Medford
Where is ZIP code 02155?
02155 centers on 42.424°, -71.108° and covers 8.2 square miles of land plus 0.6 of water. It borders 7 ZIP codes: 02144, 02145, 02474, 02148, 01890, 02149, 02180.
The map draws ZIP code areas only. For the streets inside 02155, 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 02155 compare with the rest of Middlesex County?
| Measure | 02155 | In Middlesex County | In MA |
|---|---|---|---|
| People (ACS 2020-2024) | 61,730 | 2nd of 83 | 5th of 539 |
| Median household income | $130k | 51st of 78 | 133rd of 406 |
| Median home value | $756k | 40th of 80 | 96th of 449 |
Its median household income is higher than in 93% of U.S. residential ZIP codes, and it is denser than 97% 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 02155?
The 2020 Census counted 61,483 people in 02155; the ACS, which samples households over 2020-2024, estimates 61,730. Between the 2010 and 2020 censuses its population grew 6.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 61,730
- 2020 Census count
- 61,483+6.1% since 2010 (57,964)
- Households
- 24,370
- Median age
- 34.9
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 02155?
Of the 61,730 people the ACS estimates in 02155, 12.2% are under 18 and 14.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (65.8%), then Asian (not Hispanic) (13.4%).
- Under 1812.2%
- 18 to 6473.2%
- 65 and older14.6%
- White, not Hispanic65.8%
- Asian, not Hispanic13.4%
- Hispanic or Latino8.6%
- Black, not Hispanic6.3%
- Other or two or more5.9%
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 02155 earn?
Median household income is $129,700 (ACS 2020-2024), the 51st highest of the 78 ranked ZIP codes in Middlesex County. It rose from $118,387 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $129,700
- Income per person
- $64,019
- Below the poverty line
- 7.6%
- Unemployed (of the labor force)
- 4.4%
- Adults 25+ with a bachelor's degree
- 59.9%
- Adjusted gross income per tax return, 2022
- $103,86531,350 returns; wages 79% 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 02155?
FHFA's house price index for 02155, built from repeat sales and appraisals of the same homes, rose 90% from 2015 to 2025 and rose 39% from 2020 to 2025, and moved +4.7% in 2025.
- Median home value (owners' estimate)
- $755,500
- Median gross rent
- $2,513
- Homes owned by their occupants
- 54.0%
- Housing units
- 25,618
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 02155?
1,171 business establishments had a location in this ZIP code in 2023, 21 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction170
- Other services (except public administration)161
- Retail trade134
- Professional, scientific, and technical services133
- Health care and social assistance129
- Accommodation and food services129
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 02155?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 02144 | Somerville | 25,448 | $150k | 1.8 mi |
| 02145 | Somerville | 27,495 | $124k | 2.4 mi |
| 02474 | Arlington | 28,642 | $151k | 2.5 mi |
| 02148 | Malden | 65,906 | $101k | 2.5 mi |
| 01890 | Winchester | 23,406 | $230k | 2.7 mi |
| 02149 | Everett | 50,045 | $85k | 3.0 mi |
| 02180 | Stoneham | 23,355 | $114k | 3.5 mi |
| 02140 | Cambridge | 21,204 | $135k | 2.6 mi (near) |
| 02143 | Somerville | 25,513 | $131k | 3.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.
Which other ZIP codes use the name Medford?
1 more ZIP code carries the postal name Medford, MA without a residential delivery area: PO boxes at the post office, or a single organization with its own ZIP code. The Census Bureau publishes no figures for it.
| ZIP | County |
|---|---|
| 02153 | Middlesex County |
Source: GeoNames postal codes (CC BY 4.0), downloaded 2026-10-09; a ZIP code with no Census ZCTA has no residential delivery area.