01867 ZIP Code, Reading, MA

01867 is a ZIP code in Reading, Massachusetts in Middlesex County. It covers 10.0 square miles of land. The closest ZIP codes are 01880, 01864 and 01940. 25,612 people live here in 9,740 households. At about 2,570 people per square mile it has suburban density, and most homes are owner-occupied (82%). Median household income is $165,912, well above the Massachusetts median of $103,960.

Quick facts

Key figures

MeasureValue
Residents25,612
Households9,740
Median household income$165,912
Income per person$74,991
Median age43.7
Homeowners82.4%
Median home value$809,000
Median rent$1,991
Bachelor's degree or higher66.3%
Average commute (minutes)30.9
Households with kids under 1833.9%
Moved in the past year8.5%
Below the poverty line3.2%
Broadband internet95.3%
Speak a non-English language at home12.6%

Household income

% of householdsValue
<$10K2.4%
$10–15K0.5%
$15–25K5.4%
$25–35K3.2%
$35–50K4.2%
$50–75K6.2%
$75–100K8.3%
$100–150K16.2%
$150–200K12.7%
$200K+40.8%

Age

% of all residentsValue
<1012.2%
10–1912.5%
20–244.2%
25–349.9%
35–4412.9%
45–5413.3%
55–6414.4%
65–7411.6%
75+9.0%

Tenure

% of housing unitsValue
Owned, with mortgage55.3%
Owned outright26.0%
Rented16.6%
Vacant2.1%

Type of building

% of housing unitsValue
Detached house71.2%
Townhome3.1%
2–4 units7.0%
5–19 units7.3%
20+ units11.4%
Mobile / other0.0%

Businesses in 01867

555 business establishments with 6,756 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

01867 has 22 USPS carrier routes with 9,987 residential and 410 business mailboxes. Open the EDDM route map.

Carrier routes in 01867

01867 has 22 USPS carrier routes (22 city (C)) with 9,987 residential and 410 business mailboxes. Routes range from 354 homes (C015) to 681 homes (C025); the median route has 425 homes. The Census counted 9,740 households in 01867 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–49916
500–7496
750–9990
1,000–1,4990
1,500+0

Best routes in 01867 for…

Most businesses

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

  1. Route C005 — USPS business mailboxes 130, 378 homes
  2. Route C014 — USPS business mailboxes 121, 397 homes
  3. Route C027 — USPS business mailboxes 47, 533 homes
  4. Route C020 — USPS business mailboxes 24, 666 homes
  5. Route C003 — USPS business mailboxes 21, 452 homes

Select these 5 routes on the route map

Every carrier route in 01867

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City4894$154,214———
C002City5255$174,338———
C003City45221$122,217———
C005City378130$69,323———
C008City3912$173,478———
C009City3649$173,478———
C011City3631$142,882———
C012City4708$174,338———
C013City3672$173,478———
C014City397121$82,616———
C015City3540$200,001+———
C016City3693$147,162———
C017City5332$174,279———
C018City4008$174,338———
C019City5694$154,214———
C020City66624$82,616———
C024City4337$147,162———
C025City6818$83,597———
C026City4040$174,279———
C027City53347$142,882———
C031City4291$173,478———
C034City4203$83,597———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 01867 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 01867

Where it ranks

Mail every home in 01867

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) 01867, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 01867 in?
01867 is a Reading, MA mailing address. By land area, 100% lies inside Reading.
What county is 01867 in?
01867 is in Middlesex County.
What is the population of 01867?
About 25,612 people (±25), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 25,522.
What is the median household income in 01867?
$165,912 (±$12,806), 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 01867?
22 USPS carrier routes with 9,987 residential and 410 business mailboxes (10,455 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 01867?
The closest, measured center to center: 01880 (3 mi, Wakefield), 01864 (3.2 mi), 01940 (3.4 mi, Lynnfield), 01887 (3.6 mi, Wilmington), 01801 (4.1 mi, Woburn) and 02180 (4.2 mi, Stoneham).

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