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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/01538

01538

ZIP 01538 is North Uxbridge, Massachusetts, in Worcester County; area codes 508 and 774; Eastern time.

Type
No street area
Time zone
America/New_York
County
Worcester
Metro area
Worcester, MA
Coordinates
42.0876, -71.6412

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 01569, whose figures describe that area — not this ZIP code.

☼ Live from 01538 — North Uxbridge, MA

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Where 01538 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 01538
  • 🔢 Type 01538 into a pocket calculator and turn it upside down: BESIO — not quite a word, sorry.
  • ➕ As a number, 1,538 = 2 × 769. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000000010
  • 🏠 Its numerical neighbours: 01537 (North Oxford, MA, 14 mi away) and 01540 (Oxford, MA, 11 mi away).
  • 🔄 Backwards, 01538 becomes 83510, which is not a ZIP code at all.
  • 👥 55 other ZIP codes are made of exactly the same digits (01583, 01835, 01853, 03581, 03815, 03851, …). The farthest-flung twin is 85031 in Phoenix, AZ, 2,268 miles away.
  • 🧭 Farther north than 76% 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 01538 and you would come out at 42.09°S, 108.36°E — 813 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 15m of daylight. Shortest: 9h 06m.
🌙 The sky over 01538 today
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Source: USGS.

Business and tax activity

Business establishments10This ZIP10
Employees57This ZIP57
Annual payroll$1,528,000This ZIP$1,528,000

Land area

ZIP codes near 01538

ZIPCityDistance
01525 Linwood, MA 0.8 mi
01569 Uxbridge, MA 2.2 mi
01588 Whitinsville, MA 2.3 mi
01534 Northbridge, MA 3.5 mi
01529 Millville, MA 4.8 mi
01756 Mendon, MA 5.0 mi
01526 Manchaug, MA 5.5 mi
01747 Hopedale, MA 6.1 mi
01516 Douglas, MA 6.2 mi
01560 South Grafton, MA 6.3 mi

Find every ZIP code within 10 miles of 01538 →

Questions about this ZIP code

Where is ZIP code 01538?

01538 is in North Uxbridge, Massachusetts, in Worcester County, part of the Worcester, MA metropolitan area. Its published point location is 42.0876, -71.6412.

What county is 01538 in?

01538 lies in Worcester County.

What area code is 01538?

North Uxbridge uses area codes 508 and 774, from NANPA's telephone records.

What time zone is 01538 in?

01538 uses America/New_York.

What ZIP codes are near 01538?

The closest are 01525 (0.8 mi), 01569 (2.2 mi), 01588 (2.3 mi), 01534 (3.5 mi) and 01529 (4.8 mi).

Is 01538 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “01538 ZIP Code — North Uxbridge, Massachusetts (Worcester County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/01538

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