01887 ZIP Code, Wilmington, MA

01887 is a ZIP code in Wilmington, Massachusetts in Middlesex County. It covers 17 square miles of land. The closest ZIP codes are 01867, 01864 and 01803. 23,336 people live here in 7,926 households. At about 1,375 people per square mile it has suburban density, and most homes are owner-occupied (88%). Median household income is $168,152, well above the Massachusetts median of $103,960.

Quick facts

Key figures

MeasureValue
Residents23,336
Households7,926
Median household income$168,152
Income per person$63,071
Median age42.3
Homeowners88.1%
Median home value$680,500
Median rent$2,394
Bachelor's degree or higher50.4%
Average commute (minutes)30.3
Households with kids under 1836.8%
Moved in the past year4.5%
Below the poverty line3.8%
Broadband internet96.0%
Speak a non-English language at home7.7%

Household income

% of householdsValue
<$10K2.6%
$10–15K1.6%
$15–25K1.7%
$25–35K2.2%
$35–50K3.4%
$50–75K11.4%
$75–100K8.4%
$100–150K14.1%
$150–200K14.3%
$200K+40.4%

Age

% of all residentsValue
<1011.6%
10–1913.7%
20–246.1%
25–348.3%
35–4413.9%
45–5413.3%
55–6417.5%
65–749.5%
75+6.1%

Tenure

% of housing unitsValue
Owned, with mortgage61.1%
Owned outright25.6%
Rented11.5%
Vacant1.8%

Type of building

% of housing unitsValue
Detached house84.5%
Townhome3.2%
2–4 units2.5%
5–19 units6.4%
20+ units3.5%
Mobile / other0.0%

Businesses in 01887

851 business establishments with 26,779 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

01887 has 17 USPS carrier routes with 8,312 residential and 833 business mailboxes. Open the EDDM route map.

Carrier routes in 01887

01887 has 17 USPS carrier routes (8 city (C), 9 rural (R)) with 8,312 residential and 833 business mailboxes. Routes range from 207 homes (C001) to 673 homes (R006); the median route has 524 homes. The Census counted 7,926 households in 01887 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2492
250–4996
500–7499
750–9990
1,000–1,4990
1,500+0

Best routes in 01887 for…

Most businesses

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

  1. Route C008 — USPS business mailboxes 163, 228 homes
  2. Route R008 — USPS business mailboxes 118, 312 homes
  3. Route C006 — USPS business mailboxes 100, 497 homes
  4. Route R001 — USPS business mailboxes 95, 310 homes
  5. Route R005 — USPS business mailboxes 75, 538 homes

Select these 5 routes on the route map

Every carrier route in 01887

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City20741$154,214———
C002City5843$139,248———
C003City49675$172,078———
C004City40966$172,078———
C005City6719$139,248———
C006City497100$156,675———
C007City60718$150,598———
C008City228163$118,162———
R001Rural31095$140,374———
R002Rural5901$170,382———
R003Rural44661$200,001+———
R004Rural6652$139,248———
R005Rural53875$140,374———
R006Rural6733$155,071———
R008Rural312118$155,071———
R010Rural5552$150,598———
R011Rural5241$143,822———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 01887 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 01887

Where it ranks

Mail every home in 01887

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) 01887, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 01887 in?
01887 is a Wilmington, MA mailing address. By land area, 100% lies inside Wilmington.
What county is 01887 in?
01887 is in Middlesex County.
What is the population of 01887?
About 23,336 people (±47), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 23,349.
What is the median household income in 01887?
$168,152 (±$19,029), 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 01887?
17 USPS carrier routes with 8,312 residential and 833 business mailboxes (9,151 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 01887?
The closest, measured center to center: 01867 (3.6 mi, Reading), 01864 (4.2 mi), 01803 (4.6 mi, Burlington), 01821 (4.6 mi, Pinehurst), 01876 (4.6 mi) and 01801 (5.3 mi, Woburn).

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