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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/01843

01843

ZIP 01843 is in Lawrence, Massachusetts, in Essex County; area codes 978, 508 and 351; Eastern time. Lawrence has 4 ZIP codes; the others are 01840, 01841 and 01842.

Type
Standard
Time zone
America/New_York
County
Essex
Population
27,445
Coordinates
42.6900, -71.1604
☼ Live from 01843 — Lawrence, MA

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Where 01843 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 01843
  • 🔢 Type 01843 into a pocket calculator and turn it upside down: EhBIO — not quite a word, sorry.
  • ➕ As a number, 1,843 = 19 × 97. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11100110011
  • 🏠 Its numerical neighbours: 01842 (Lawrence, MA, 1 mi away) and 01844 (Methuen, MA, 4 mi away).
  • 🔄 Backwards, 01843 becomes 34810, which is not a ZIP code at all.
  • 👥 54 other ZIP codes are made of exactly the same digits (01438, 01834, 03814, 03841, 08314, 08341, …). The farthest-flung twin is 84013 in Cedar Valley, UT, 2,104 miles away.
  • 🧭 Farther north than 81% of all ZIP codes, and farther east than 96%.
  • 🎯1,431 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 01843 and you would come out at 42.69°S, 108.84°E — 835 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 19m of daylight. Shortest: 9h 02m.
  • 📏 At 3.4 square miles of land, 01843 is bigger than 15% of ZIP codes — room for about 2.6 Central Parks.
🌙 The sky over 01843 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population27,445This ZIP27,445
Households10,507This ZIP10,507
Housing units10,740This ZIP10,740
Median age34.0This ZIP34.0Massachusetts40.0US 38.9
Median household income$67,585This ZIP$67,585Massachusetts$103,960US $80,734
Median home value$429,100This ZIP$429,100Massachusetts$562,100US $332,700
Median gross rent$1,746This ZIP$1,746Massachusetts$1,762US $1,413
Bachelor's degree or higher20.3%This ZIP20.3%
Mean commute23.1 minThis ZIP23.1 min
Population density8,134.3 / sq miThis ZIP8,134.3 / sq mi

Business and tax activity

Business establishments572This ZIP572
Employees11,504This ZIP11,504
Annual payroll$731,067,000This ZIP$731,067,000
Tax returns filed15,120This ZIP15,120
Total adjusted gross income$719,968,000This ZIP$719,968,000

Land area

Land area3.37 sq miThis ZIP3.37 sq mi
Water area0.25 sq miThis ZIP0.25 sq mi

Other place names in 01843

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

ZIP codes near 01843

ZIPCityDistance
01840 Lawrence, MA 1.2 mi
01842 Lawrence, MA 1.2 mi
01841 Lawrence, MA 1.8 mi
01899 Andover, MA 2.5 mi
01810 Andover, MA 2.9 mi
01812 Andover, MA 3.2 mi
05501 Andover, MA 3.2 mi
05544 Andover, MA 3.2 mi
01845 North Andover, MA 3.7 mi
01844 Methuen, MA 3.8 mi

Find every ZIP code within 10 miles of 01843 →

Questions about this ZIP code

Where is ZIP code 01843?

01843 is in Lawrence, Massachusetts, in Essex County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 42.6900, -71.1604.

What county is 01843 in?

01843 lies in Essex County.

What area code is 01843?

Lawrence uses area codes 978, 508 and 351, from NANPA's telephone records.

What time zone is 01843 in?

01843 uses America/New_York.

How many people live in 01843?

About 27,445 people live in ZIP code 01843, in 10,507 households, at 8,134.3 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 01843?

$67,585 a year, against $103,960 across Massachusetts.

What ZIP codes are near 01843?

The closest are 01840 (1.2 mi), 01842 (1.2 mi), 01841 (1.8 mi), 01899 (2.5 mi) and 01810 (2.9 mi).

Is 01843 a PO Box ZIP code?

01843 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “01843 ZIP Code — Lawrence, Massachusetts (Essex County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/01843

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