01835 ZIP Code, Haverhill, MA

01835 is a ZIP code in Haverhill, Massachusetts in Essex County. It covers 7.8 square miles of land. The closest ZIP codes are 01832, 01830 and 01841. 14,782 people live here in 5,568 households. At about 1,893 people per square mile it has suburban density, and most homes are owner-occupied (75%). Median household income is $113,578, close to the Massachusetts median of $103,960.

Quick facts

Key figures

MeasureValue
Residents14,782
Households5,568
Median household income$113,578
Income per person$52,615
Median age39.2
Homeowners75.4%
Median home value$468,800
Median rent$1,852
Bachelor's degree or higher41.0%
Average commute (minutes)28.9
Households with kids under 1836.0%
Moved in the past year8.0%
Below the poverty line4.5%
Broadband internet95.8%
Speak a non-English language at home18.1%

Household income

% of householdsValue
<$10K2.6%
$10–15K1.5%
$15–25K2.4%
$25–35K3.7%
$35–50K7.2%
$50–75K12.5%
$75–100K8.6%
$100–150K28.4%
$150–200K16.1%
$200K+17.0%

Age

% of all residentsValue
<1011.2%
10–1913.8%
20–246.2%
25–3413.6%
35–4413.5%
45–5414.2%
55–6415.0%
65–747.5%
75+5.0%

Tenure

% of housing unitsValue
Owned, with mortgage57.0%
Owned outright16.4%
Rented23.1%
Vacant3.4%

Type of building

% of housing unitsValue
Detached house47.9%
Townhome14.1%
2–4 units20.7%
5–19 units13.0%
20+ units4.3%
Mobile / other0.0%

Businesses in 01835

276 business establishments with 5,503 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

01835 has 11 USPS carrier routes with 6,146 residential and 296 business mailboxes. Open the EDDM route map.

Carrier routes in 01835

01835 has 11 USPS carrier routes (7 city (C), 4 rural (R)) with 6,146 residential and 296 business mailboxes. Routes range from 344 homes (R007) to 818 homes (R014); the median route has 550 homes. The Census counted 5,568 households in 01835 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4994
500–7496
750–9991
1,000–1,4990
1,500+0

Best routes in 01835 for…

Most businesses

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

  1. Route R007 — USPS business mailboxes 144, 344 homes
  2. Route C017 — USPS business mailboxes 53, 514 homes
  3. Route R014 — USPS business mailboxes 38, 818 homes
  4. Route C026 — USPS business mailboxes 27, 599 homes
  5. Route C040 — USPS business mailboxes 11, 470 homes

Select these 5 routes on the route map

Every carrier route in 01835

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C017City51453$57,016———
C018City7107$89,922———
C021City4648$82,647———
C024City4242$115,580———
C026City59927$115,580———
C039City5505$102,191———
C040City47011$102,191———
R003Rural5931$157,549———
R007Rural344144$109,700———
R009Rural6600$109,700———
R014Rural81838$178,193———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 01835 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 01835

Where it ranks

Mail every home in 01835

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) 01835, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 01835 in?
01835 is a Haverhill, MA mailing address. By land area, 100% lies inside Haverhill.
What county is 01835 in?
01835 is in Essex County.
What is the population of 01835?
About 14,782 people (±1,142), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 14,578.
What is the median household income in 01835?
$113,578 (±$10,106), 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 01835?
11 USPS carrier routes with 6,146 residential and 296 business mailboxes (6,437 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 01835?
The closest, measured center to center: 01832 (3.4 mi, Haverhill), 01830 (3.7 mi, Haverhill), 01841 (3.7 mi, Lawrence), 01834 (4 mi), 01844 (4.3 mi, Methuen Town) and 01840 (4.5 mi, Lawrence).

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