Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/01841

01841

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

Type
Standard
Time zone
America/New_York
County
Essex
Population
52,769
Coordinates
42.7151, -71.1483
☼ Live from 01841 — Lawrence, MA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 01841 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 01841
  • 🔢 Type 01841 into a pocket calculator and turn it upside down: IhBIO — not quite a word, sorry.
  • ➕ As a number, 1,841 = 7 × 263. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11100110001
  • 🏠 Its numerical neighbours: 01840 (Lawrence, MA, 1 mi away) and 01842 (Lawrence, MA, 1 mi away).
  • 🔄 Backwards, 01841 becomes 14810 — and that is a real ZIP code: Bath, NY, 317 miles away.
  • 👥 23 other ZIP codes are made of exactly the same digits (11804, 14081, 14108, 14801, 14810, 18014, …). The farthest-flung twin is 84110 in Salt Lake City, UT, 2,087 miles away.
  • 🧭 Farther north than 81% of all ZIP codes, and farther east than 96%.
  • 🎯1,432 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 01841 and you would come out at 42.72°S, 108.85°E — 837 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 20m of daylight. Shortest: 9h 02m.
  • 📏 At 3.0 square miles of land, 01841 is bigger than 14% of ZIP codes — room for about 2.3 Central Parks.
🌙 The sky over 01841 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population52,769This ZIP52,769
Households17,027This ZIP17,027
Housing units17,444This ZIP17,444
Median age31.8This ZIP31.8Massachusetts40.0US 38.9
Median household income$56,971This ZIP$56,971Massachusetts$103,960US $80,734
Median home value$403,400This ZIP$403,400Massachusetts$562,100US $332,700
Median gross rent$1,672This ZIP$1,672Massachusetts$1,762US $1,413
Bachelor's degree or higher14.7%This ZIP14.7%
Mean commute23.0 minThis ZIP23.0 min
Population density17,341.1 / sq miThis ZIP17,341.1 / sq mi

Business and tax activity

Business establishments541This ZIP541
Employees5,765This ZIP5,765
Annual payroll$348,842,000This ZIP$348,842,000
Tax returns filed26,640This ZIP26,640
Total adjusted gross income$1,015,595,000This ZIP$1,015,595,000

Land area

Land area3.04 sq miThis ZIP3.04 sq mi
Water area0.18 sq miThis ZIP0.18 sq mi

Other place names in 01841

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

ZIP codes near 01841

ZIPCityDistance
01840 Lawrence, MA 0.8 mi
01842 Lawrence, MA 0.9 mi
01843 Lawrence, MA 1.8 mi
01844 Methuen, MA 2.4 mi
01835 Haverhill, MA 3.7 mi
01899 Andover, MA 4.0 mi
01845 North Andover, MA 4.1 mi
01831 Haverhill, MA 4.1 mi
01885 West Boxford, MA 4.3 mi
01810 Andover, MA 4.7 mi

Find every ZIP code within 10 miles of 01841 →

Questions about this ZIP code

Where is ZIP code 01841?

01841 is in Lawrence, Massachusetts, in Essex County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 42.7151, -71.1483.

What county is 01841 in?

01841 lies in Essex County.

What area code is 01841?

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

What time zone is 01841 in?

01841 uses America/New_York.

How many people live in 01841?

About 52,769 people live in ZIP code 01841, in 17,027 households, at 17,341.1 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 01841?

$56,971 a year, against $103,960 across Massachusetts.

What ZIP codes are near 01841?

The closest are 01840 (0.8 mi), 01842 (0.9 mi), 01843 (1.8 mi), 01844 (2.4 mi) and 01835 (3.7 mi).

Is 01841 a PO Box ZIP code?

01841 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “01841 ZIP Code — Lawrence, Massachusetts (Essex County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/01841

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/01841.json

Underlying data is public domain or openly licensed — sources, vintages and licences.