What city is 02141 in?

02141 is a Cambridge, MA mailing address. By land area, 100% lies inside Cambridge.

What is the population of 02141?

About 14,517 people (±893), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 15,130.

What is the median household income in 02141?

$126,522 (±$14,866), 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 02141?

10 USPS carrier routes with 8,115 residential and 547 business mailboxes (8,660 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 02141?

The closest, measured center to center: 02142 (0.5 mi, Cambridge), 02114 (0.9 mi, Boston), 02139 (1.1 mi, Cambridge), 02143 (1.1 mi, Somerville), 02129 (1.3 mi, Boston) and 02133 (1.3 mi, Boston).

02141 ZIP Code, Cambridge, MA

02141 is a ZIP code in Cambridge, Massachusetts in Middlesex County. It covers 0.6 square miles of land. The closest ZIP codes are 02142, 02114 and 02139. 14,517 people live here in 7,270 households. It is densely built, at about 23,837 people per square mile, and most households rent (26% own). Median household income is $126,522, above the Massachusetts median of $103,960; 30% of residents moved in during the past year.

Quick facts

Mailing city: Cambridge, MA
County: Middlesex County
Land area: 0.6 sq mi
Population: 14,517
Median household income: $126,522
Carrier routes: 10 (8,115 homes)

Key figures

Measure	Value
Residents	14,517
Households	7,270
Median household income	$126,522
Income per person	$80,031
Median age	31.2
Homeowners	25.5%
Median home value	$868,100
Median rent	$2,915
Bachelor's degree or higher	74.1%
Average commute (minutes)	27
Households with kids under 18	14.1%
Moved in the past year	29.6%
Below the poverty line	14.7%
Broadband internet	94.7%
Speak a non-English language at home	41.6%

Household income

% of households	Value
<$10K	6.2%
$10–15K	2.8%
$15–25K	5.2%
$25–35K	1.8%
$35–50K	5.3%
$50–75K	9.5%
$75–100K	8.0%
$100–150K	16.7%
$150–200K	16.8%
$200K+	27.7%

Age

% of all residents	Value
<10	6.3%
10–19	5.3%
20–24	13.7%
25–34	35.4%
35–44	15.2%
45–54	8.8%
55–64	6.2%
65–74	5.6%
75+	3.5%

Tenure

% of housing units	Value
Owned, with mortgage	15.8%
Owned outright	7.0%
Rented	65.2%
Vacant	12.0%

Type of building

% of housing units	Value
Detached house	4.4%
Townhome	4.7%
2–4 units	31.5%
5–19 units	14.0%
20+ units	45.3%
Mobile / other	0.0%

Businesses in 02141

402 business establishments with 15,363 employees (ZIP Codes Business Patterns 2023).

Professional, Scientific, and Technical Services: 73
Retail Trade: 55
Accommodation and Food Services: 53
Other Services (except Public Administration): 36
Health Care and Social Assistance: 33
Information: 32
Real Estate and Rental and Leasing: 26
Administrative and Support and Waste Management and Remediation Services: 19

EDDM carrier routes

02141 has 10 USPS carrier routes with 8,115 residential and 547 business mailboxes. Open the EDDM route map.

Carrier routes in 02141

02141 has 10 USPS carrier routes (10 city (C)) with 8,115 residential and 547 business mailboxes. Routes range from 558 homes (C035) to 1,443 homes (C021); the median route has 687 homes. The Census counted 7,270 households in 02141 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	0
500–749	6
750–999	2
1,000–1,499	2
1,500+	0

Best routes in 02141 for…

Most businesses

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

Route C030 — USPS business mailboxes 231, 876 homes
Route C027 — USPS business mailboxes 87, 567 homes
Route C035 — USPS business mailboxes 85, 558 homes
Route C021 — USPS business mailboxes 42, 1,443 homes
Route C029 — USPS business mailboxes 33, 1,309 homes

Select these 5 routes on the route map

Every carrier route in 02141

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C021	City	1,443	42	$118,555	—	—	—
C023	City	667	31	$43,289	—	—	—
C024	City	670	7	$73,250	—	—	—
C025	City	704	5	$171,640	—	—	—
C026	City	760	19	$73,250	—	—	—
C027	City	567	87	$73,250	—	—	—
C028	City	561	7	$131,971	—	—	—
C029	City	1,309	33	$73,250	—	—	—
C030	City	876	231	$191,222	—	—	—
C035	City	558	85	$73,645	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 02141 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

02142 — Cambridge city, MA (0.5 mi)
02114 — Boston city, MA (0.9 mi)
02139 — Cambridge city, MA (1.1 mi)
02143 — Somerville city, MA (1.1 mi)
02129 — Boston city, MA (1.3 mi)
02133 — Boston city, MA (1.3 mi)
02203 — Boston city, MA (1.3 mi)
02108 — Boston city, MA (1.4 mi)

Areas that include 02141

Cambridge, MA ZIP codes — 5 ZIP codes
Middlesex County ZIP codes — 83 ZIP codes
Massachusetts ZIP code data

Where it ranks

Mail every home in 02141

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) 02141, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 02141 in?: 02141 is a Cambridge, MA mailing address. By land area, 100% lies inside Cambridge.
What county is 02141 in?: 02141 is in Middlesex County.
What is the population of 02141?: About 14,517 people (±893), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 15,130.
What is the median household income in 02141?: $126,522 (±$14,866), 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 02141?: 10 USPS carrier routes with 8,115 residential and 547 business mailboxes (8,660 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 02141?: The closest, measured center to center: 02142 (0.5 mi, Cambridge), 02114 (0.9 mi, Boston), 02139 (1.1 mi, Cambridge), 02143 (1.1 mi, Somerville), 02129 (1.3 mi, Boston) and 02133 (1.3 mi, Boston).

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