What city is 02131 in?

02131 is a Roslindale, MA mailing address. By land area, 100% lies inside Boston.

What is the population of 02131?

About 31,151 people (±1,411), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 30,544.

What is the median household income in 02131?

$111,006 (±$4,829), 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 02131?

23 USPS carrier routes with 12,056 residential and 522 business mailboxes (12,572 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 02131?

The closest, measured center to center: 02126 (1.8 mi, Boston), 02132 (1.8 mi, Boston), 02130 (1.9 mi, Boston), 02136 (1.9 mi, Boston), 02121 (2.5 mi, Boston) and 02124 (2.6 mi, Boston).

02131 ZIP Code, Roslindale, MA

02131 is a ZIP code in Roslindale, Massachusetts in Suffolk County. It covers 2.8 square miles of land. The closest ZIP codes are 02126, 02132 and 02130. 31,151 people live here in 12,694 households, more than in 9 of every 10 Massachusetts ZIP codes. It is densely built, at about 11,173 people per square mile, and owners and renters are mixed (59% own). Median household income is $111,006, close to the Massachusetts median of $103,960.

Quick facts

Mailing city: Roslindale, MA
County: Suffolk County
Land area: 2.8 sq mi
Population: 31,151
Median household income: $111,006
Carrier routes: 23 (12,056 homes)

Key figures

Measure	Value
Residents	31,151
Households	12,694
Median household income	$111,006
Income per person	$59,973
Median age	39.1
Homeowners	59.3%
Median home value	$664,700
Median rent	$2,020
Bachelor's degree or higher	53.9%
Average commute (minutes)	33.2
Households with kids under 18	28.6%
Moved in the past year	11.3%
Below the poverty line	9.0%
Broadband internet	92.9%
Speak a non-English language at home	31.8%

Household income

% of households	Value
<$10K	4.1%
$10–15K	2.8%
$15–25K	6.2%
$25–35K	4.2%
$35–50K	5.8%
$50–75K	10.3%
$75–100K	10.7%
$100–150K	20.9%
$150–200K	12.5%
$200K+	22.6%

Age

% of all residents	Value
<10	12.5%
10–19	9.2%
20–24	3.1%
25–34	15.4%
35–44	18.6%
45–54	12.0%
55–64	12.6%
65–74	10.5%
75+	6.0%

Tenure

% of housing units	Value
Owned, with mortgage	43.8%
Owned outright	13.3%
Rented	38.0%
Vacant	4.9%

Type of building

% of housing units	Value
Detached house	33.5%
Townhome	10.0%
2–4 units	37.6%
5–19 units	11.5%
20+ units	7.4%
Mobile / other	0.0%

Businesses in 02131

443 business establishments with 5,587 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 75
Other Services (except Public Administration): 70
Accommodation and Food Services: 58
Health Care and Social Assistance: 55
Professional, Scientific, and Technical Services: 41
Construction: 39
Real Estate and Rental and Leasing: 24
Administrative and Support and Waste Management and Remediation Services: 24

EDDM carrier routes

02131 has 23 USPS carrier routes with 12,056 residential and 522 business mailboxes. Open the EDDM route map.

Carrier routes in 02131

02131 has 23 USPS carrier routes (23 city (C)) with 12,056 residential and 522 business mailboxes. Routes range from 182 homes (C006) to 759 homes (C027); the median route has 533 homes. The Census counted 12,694 households in 02131 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	7
500–749	14
750–999	1
1,000–1,499	0
1,500+	0

Best routes in 02131 for…

Most businesses

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

Route C016 — USPS business mailboxes 81, 533 homes
Route C001 — USPS business mailboxes 78, 478 homes
Route C002 — USPS business mailboxes 73, 654 homes
Route C020 — USPS business mailboxes 44, 672 homes
Route C012 — USPS business mailboxes 38, 525 homes

Select these 5 routes on the route map

Every carrier route in 02131

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	478	78	$83,818	—	—	—
C002	City	654	73	$130,870	—	—	—
C003	City	402	0	$121,329	—	—	—
C004	City	540	2	$110,887	—	—	—
C005	City	388	1	$110,188	—	—	—
C006	City	182	29	$110,188	—	—	—
C008	City	388	4	$128,629	—	—	—
C009	City	592	16	$117,221	—	—	—
C011	City	496	0	$162,572	—	—	—
C012	City	525	38	$110,887	—	—	—
C013	City	670	30	$34,161	—	—	—
C015	City	537	4	$110,887	—	—	—
C016	City	533	81	$130,870	—	—	—
C018	City	571	3	$117,809	—	—	—
C019	City	508	12	$110,887	—	—	—
C020	City	672	44	$78,620	—	—	—
C021	City	404	1	$127,052	—	—	—
C023	City	543	6	$115,103	—	—	—
C024	City	510	25	$147,153	—	—	—
C026	City	725	21	$117,221	—	—	—
C027	City	759	20	$83,230	—	—	—
C028	City	579	1	$160,215	—	—	—
C029	City	400	33	$166,746	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 02131 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

02126 — Boston city, MA (1.8 mi)
02132 — Boston city, MA (1.8 mi)
02130 — Boston city, MA (1.9 mi)
02136 — Boston city, MA (1.9 mi)
02121 — Boston city, MA (2.5 mi)
02124 — Boston city, MA (2.6 mi)
02467 — Brookline CDP, MA (2.6 mi)
02445 — Brookline CDP, MA (3 mi)

Areas that include 02131

Where it ranks

Mail every home in 02131

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) 02131, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 02131 in?: 02131 is a Roslindale, MA mailing address. By land area, 100% lies inside Boston.
What county is 02131 in?: 02131 is in Suffolk County.
What is the population of 02131?: About 31,151 people (±1,411), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 30,544.
What is the median household income in 02131?: $111,006 (±$4,829), 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 02131?: 23 USPS carrier routes with 12,056 residential and 522 business mailboxes (12,572 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 02131?: The closest, measured center to center: 02126 (1.8 mi, Boston), 02132 (1.8 mi, Boston), 02130 (1.9 mi, Boston), 02136 (1.9 mi, Boston), 02121 (2.5 mi, Boston) and 02124 (2.6 mi, Boston).

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