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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/01503

01503

ZIP 01503 is Berlin, Massachusetts, in Worcester County; area codes 978 and 351; Eastern time.

Type
Standard
Time zone
America/New_York
County
Worcester
Metro area
Worcester, MA
Population
3,378
Coordinates
42.3849, -71.6339
☼ Live from 01503 — Berlin, MA

Weather right now

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Local time: —

Where 01503 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 01503
  • 🔢 Type 01503 into a pocket calculator and turn it upside down: EOSIO — not quite a word, sorry.
  • ➕ As a number, 1,503 = 3 × 3 × 167. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111011111
  • 🏠 Its numerical neighbours: 01501 (Auburn, MA, 17 mi away) and 01504 (Blackstone, MA, 24 mi away).
  • 🔄 Backwards, 01503 becomes 30510 — and that is a real ZIP code: Alto, GA, 846 miles away.
  • 👥 31 other ZIP codes are made of exactly the same digits (01035, 01053, 01350, 03051, 03105, 05031, …). The farthest-flung twin is 51030 in Lawton, IA, 1,248 miles away.
  • 🧭 Farther north than 78% of all ZIP codes, and farther east than 95%.
  • 🎯1,408 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 01503 and you would come out at 42.38°S, 108.37°E — 830 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 17m of daylight. Shortest: 9h 04m.
  • 📏 At 13.0 square miles of land, 01503 is bigger than 31% of ZIP codes — room for about 9.8 Central Parks.
🌙 The sky over 01503 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population3,378This ZIP3,378
Households1,447This ZIP1,447
Housing units1,495This ZIP1,495
Median age49.7This ZIP49.7Massachusetts40.0US 38.9
Median household income$121,336This ZIP$121,336Massachusetts$103,960US $80,734
Median home value$616,600This ZIP$616,600Massachusetts$562,100US $332,700
Median gross rent$2,420This ZIP$2,420Massachusetts$1,762US $1,413
Bachelor's degree or higher48.3%This ZIP48.3%
Mean commute34.1 minThis ZIP34.1 min
Population density260.4 / sq miThis ZIP260.4 / sq mi

Business and tax activity

Business establishments103This ZIP103
Employees479This ZIP479
Annual payroll$28,248,000This ZIP$28,248,000
Tax returns filed1,980This ZIP1,980
Total adjusted gross income$248,828,000This ZIP$248,828,000

Land area

Land area12.97 sq miThis ZIP12.97 sq mi
Water area0.20 sq miThis ZIP0.20 sq mi

ZIP codes near 01503

ZIPCityDistance
01510 Clinton, MA 3.4 mi
01740 Bolton, MA 4.1 mi
01532 Northborough, MA 4.3 mi
01749 Hudson, MA 4.5 mi
01505 Boylston, MA 4.7 mi
01561 South Lancaster, MA 5.0 mi
01752 Marlborough, MA 5.1 mi
01775 Stow, MA 6.9 mi
01467 Still River, MA 7.1 mi
01523 Lancaster, MA 7.1 mi

Find every ZIP code within 10 miles of 01503 →

Questions about this ZIP code

Where is ZIP code 01503?

01503 is in Berlin, Massachusetts, in Worcester County, part of the Worcester, MA metropolitan area. Its published point location is 42.3849, -71.6339.

What county is 01503 in?

01503 lies in Worcester County.

What area code is 01503?

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

What time zone is 01503 in?

01503 uses America/New_York.

How many people live in 01503?

About 3,378 people live in ZIP code 01503, in 1,447 households, at 260.4 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 01503?

$121,336 a year, against $103,960 across Massachusetts.

What ZIP codes are near 01503?

The closest are 01510 (3.4 mi), 01740 (4.1 mi), 01532 (4.3 mi), 01749 (4.5 mi) and 01505 (4.7 mi).

Is 01503 a PO Box ZIP code?

01503 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “01503 ZIP Code — Berlin, Massachusetts (Worcester County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/01503

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