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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/01835

01835

ZIP 01835 is in Haverhill, Massachusetts, in Essex County; area codes 978 and 351; Eastern time. Haverhill has 4 ZIP codes; the others are 01830, 01831 and 01832.

Type
Standard
Time zone
America/New_York
County
Essex
Population
14,782
Coordinates
42.7513, -71.0944
☼ Live from 01835 — Haverhill, MA

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Where 01835 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 01835
  • 🔢 Type 01835 into a pocket calculator and turn it upside down: SEBIO — not quite a word, sorry.
  • ➕ As a number, 1,835 = 5 × 367. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11100101011
  • 🏠 Its numerical neighbours: 01834 (Groveland, MA, 4 mi away) and 01840 (Lawrence, MA, 5 mi away).
  • 🔄 Backwards, 01835 becomes 53810 — and that is a real ZIP code: Glen Haven, WI, 1,007 miles away.
  • 👥 55 other ZIP codes are made of exactly the same digits (01538, 01583, 01853, 03581, 03815, 03851, …). The farthest-flung twin is 85031 in Phoenix, AZ, 2,298 miles away.
  • 🧭 Farther north than 81% of all ZIP codes, and farther east than 96%.
  • 🎯1,435 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 01835 and you would come out at 42.75°S, 108.91°E — 838 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 20m of daylight. Shortest: 9h 02m.
  • 📏 At 7.8 square miles of land, 01835 is bigger than 24% of ZIP codes — room for about 5.9 Central Parks.
🌙 The sky over 01835 today
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🌋 Shake report
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Source: USGS.

People and housing

Population14,782This ZIP14,782
Households5,568This ZIP5,568
Housing units5,769This ZIP5,769
Median age39.2This ZIP39.2Massachusetts40.0US 38.9
Median household income$113,578This ZIP$113,578Massachusetts$103,960US $80,734
Median home value$468,800This ZIP$468,800Massachusetts$562,100US $332,700
Median gross rent$1,852This ZIP$1,852Massachusetts$1,762US $1,413
Bachelor's degree or higher41.0%This ZIP41.0%
Mean commute28.9 minThis ZIP28.9 min
Population density1,892.7 / sq miThis ZIP1,892.7 / sq mi

Business and tax activity

Business establishments276This ZIP276
Employees5,503This ZIP5,503
Annual payroll$339,922,000This ZIP$339,922,000
Tax returns filed8,060This ZIP8,060
Total adjusted gross income$658,735,000This ZIP$658,735,000

Land area

Land area7.81 sq miThis ZIP7.81 sq mi
Water area0.86 sq miThis ZIP0.86 sq mi

Other place names in 01835

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 01835

ZIPCityDistance
01831 Haverhill, MA 2.0 mi
01832 Haverhill, MA 3.4 mi
01885 West Boxford, MA 3.4 mi
01841 Lawrence, MA 3.7 mi
01830 Haverhill, MA 3.7 mi
01834 Groveland, MA 4.0 mi
01844 Methuen, MA 4.3 mi
01840 Lawrence, MA 4.5 mi
01842 Lawrence, MA 4.6 mi
01845 North Andover, MA 5.4 mi

Find every ZIP code within 10 miles of 01835 →

Questions about this ZIP code

Where is ZIP code 01835?

01835 is in Haverhill, Massachusetts, in Essex County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 42.7513, -71.0944.

What county is 01835 in?

01835 lies in Essex County.

What area code is 01835?

Haverhill uses area codes 978 and 351, from NANPA's telephone records.

What time zone is 01835 in?

01835 uses America/New_York.

How many people live in 01835?

About 14,782 people live in ZIP code 01835, in 5,568 households, at 1,892.7 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 01835?

$113,578 a year, against $103,960 across Massachusetts.

What ZIP codes are near 01835?

The closest are 01831 (2 mi), 01832 (3.4 mi), 01885 (3.4 mi), 01841 (3.7 mi) and 01830 (3.7 mi).

Is 01835 a PO Box ZIP code?

01835 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “01835 ZIP Code — Haverhill, Massachusetts (Essex County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/01835

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