02155 ZIP Code, Medford, MA

02155 is a ZIP code in Medford, Massachusetts in Middlesex County. It covers 8.2 square miles of land. The closest ZIP codes are 02144, 02145 and 02148. 61,730 people live here in 24,370 households, which puts it among the most populous 1% of Massachusetts ZIP codes. At about 7,538 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (54% own). Median household income is $129,700, above the Massachusetts median of $103,960.

Quick facts

Key figures

MeasureValue
Residents61,730
Households24,370
Median household income$129,700
Income per person$64,019
Median age34.9
Homeowners54.0%
Median home value$755,500
Median rent$2,513
Bachelor's degree or higher59.9%
Average commute (minutes)30
Households with kids under 1820.4%
Moved in the past year17.1%
Below the poverty line7.6%
Broadband internet92.8%
Speak a non-English language at home29.2%

Household income

% of householdsValue
<$10K3.0%
$10–15K3.4%
$15–25K3.5%
$25–35K3.8%
$35–50K6.4%
$50–75K9.9%
$75–100K9.9%
$100–150K15.0%
$150–200K15.0%
$200K+30.1%

Age

% of all residentsValue
<106.5%
10–1912.2%
20–249.4%
25–3422.1%
35–4412.9%
45–5411.5%
55–6410.8%
65–748.7%
75+5.9%

Tenure

% of housing unitsValue
Owned, with mortgage33.0%
Owned outright19.0%
Rented43.2%
Vacant4.8%

Type of building

% of housing unitsValue
Detached house33.8%
Townhome6.7%
2–4 units34.4%
5–19 units4.4%
20+ units20.5%
Mobile / other0.3%

Businesses in 02155

1,171 business establishments with 22,673 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

02155 has 42 USPS carrier routes with 25,052 residential and 1,347 business mailboxes. Open the EDDM route map.

Carrier routes in 02155

02155 has 42 USPS carrier routes (42 city (C)) with 25,052 residential and 1,347 business mailboxes. Routes range from 340 homes (C049) to 1,173 homes (C028); the median route has 570 homes. The Census counted 24,370 households in 02155 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–49915
500–74922
750–9993
1,000–1,4992
1,500+0

Best routes in 02155 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route C010 — USPS business mailboxes 202, 393 homes
  2. Route C048 — USPS business mailboxes 169, 711 homes
  3. Route C027 — USPS business mailboxes 119, 486 homes
  4. Route C056 — USPS business mailboxes 109, 552 homes
  5. Route C006 — USPS business mailboxes 98, 635 homes

Select these 5 routes on the route map

Every carrier route in 02155

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City69356$116,376———
C002City6414$200,001+———
C004City65627$102,380———
C006City63598$157,004———
C007City4656$116,376———
C009City54716$136,733———
C010City393202$116,993———
C013City66310$200,001+———
C014City79126$124,968———
C015City92072$157,004———
C016City5213$112,879———
C017City46511$137,848———
C018City84933$101,661———
C019City4801$156,660———
C020City4361$116,376———
C021City61810$92,694———
C024City4423$98,811———
C025City1,12140$94,281———
C026City65420$136,733———
C027City486119$112,140———
C028City1,17317$200,001+———
C029City68925$116,993———
C031City55755$200,001+———
C033City3882$136,733———
C034City66621$200,001+———
C035City57331$75,495———
C038City4325$106,924———
C039City71113$162,917———
C040City3714$174,215———
C044City51538$51,096———
C045City4773$97,316———
C046City49859$101,185———
C047City6684$114,354———
C048City711169$200,001+———
C049City3400$129,892———
C050City3732$133,257———
C051City3670$163,582———
C052City6474$112,140———
C054City69919$150,438———
C056City552109$200,001+———
C057City5674$133,257———
C059City6025$83,637———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 02155 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 02155

Where it ranks

Mail every home in 02155

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 02155, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 02155 in?
02155 is a Medford, MA mailing address. By land area, 99% lies inside Medford and 1% lies inside Somerville.
What county is 02155 in?
02155 is in Middlesex County.
What is the population of 02155?
About 61,730 people (±193), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 61,483.
What is the median household income in 02155?
$129,700 (±$8,109), compared with $103,960 for Massachusetts as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 02155?
42 USPS carrier routes with 25,052 residential and 1,347 business mailboxes (26,325 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 02155?
The closest, measured center to center: 02144 (1.8 mi, Somerville), 02145 (2.4 mi, Somerville), 02148 (2.5 mi, Malden), 02474 (2.5 mi, Arlington), 02140 (2.6 mi, Cambridge) and 01890 (2.7 mi, Winchester).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.