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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/01504

01504

ZIP 01504 is Blackstone, Massachusetts, in Worcester County; area codes 508 and 774; Eastern time.

Type
Standard
Time zone
America/New_York
County
Worcester
Metro area
Worcester, MA
Population
9,255
Coordinates
42.0400, -71.5324
☼ Live from 01504 — Blackstone, MA

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Where 01504 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 01504
  • 🔢 Type 01504 into a pocket calculator and turn it upside down: hOSIO — not quite a word, sorry.
  • ➕ As a number, 1,504 = 2 × 2 × 2 × 2 × 2 × 47. Its digits add up to 10, a total 513 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111100000
  • 🏠 Its numerical neighbours: 01503 (Berlin, MA, 24 mi away) and 01505 (Boylston, MA, 24 mi away).
  • 🔄 Backwards, 01504 becomes 40510 — and that is a real ZIP code: Lexington, KY, 742 miles away.
  • 👥 27 other ZIP codes are made of exactly the same digits (01054, 01450, 01540, 04015, 04051, 04105, …). The farthest-flung twin is 51040 in Onawa, IA, 1,255 miles away.
  • 🧭 Farther north than 75% of all ZIP codes, and farther east than 95%.
  • 🎯1,414 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 01504 and you would come out at 42.04°S, 108.47°E — 807 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 15m of daylight. Shortest: 9h 06m.
  • 📏 At 11.1 square miles of land, 01504 is bigger than 29% of ZIP codes — room for about 8.4 Central Parks.
🌙 The sky over 01504 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population9,255This ZIP9,255
Households3,904This ZIP3,904
Housing units4,013This ZIP4,013
Median age43.2This ZIP43.2Massachusetts40.0US 38.9
Median household income$94,191This ZIP$94,191Massachusetts$103,960US $80,734
Median home value$404,400This ZIP$404,400Massachusetts$562,100US $332,700
Median gross rent$1,189This ZIP$1,189Massachusetts$1,762US $1,413
Bachelor's degree or higher31.9%This ZIP31.9%
Mean commute33.9 minThis ZIP33.9 min
Population density833.0 / sq miThis ZIP833.0 / sq mi

Business and tax activity

Business establishments147This ZIP147
Employees775This ZIP775
Annual payroll$43,895,000This ZIP$43,895,000
Tax returns filed4,840This ZIP4,840
Total adjusted gross income$392,460,000This ZIP$392,460,000

Land area

Land area11.11 sq miThis ZIP11.11 sq mi
Water area0.32 sq miThis ZIP0.32 sq mi

ZIP codes near 01504

ZIPCityDistance
01529 Millville, MA 2.4 mi
02895 Woonsocket, RI 3.1 mi
02824 Forestdale, RI 3.2 mi
01756 Mendon, MA 3.8 mi
02019 Bellingham, MA 3.9 mi
02876 Slatersville, RI 4.0 mi
02896 North Smithfield, RI 4.5 mi
01569 Uxbridge, MA 5.2 mi
01747 Hopedale, MA 5.7 mi
02838 Manville, RI 5.8 mi

Find every ZIP code within 10 miles of 01504 →

Questions about this ZIP code

Where is ZIP code 01504?

01504 is in Blackstone, Massachusetts, in Worcester County, part of the Worcester, MA metropolitan area. Its published point location is 42.0400, -71.5324.

What county is 01504 in?

01504 lies in Worcester County.

What area code is 01504?

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

What time zone is 01504 in?

01504 uses America/New_York.

How many people live in 01504?

About 9,255 people live in ZIP code 01504, in 3,904 households, at 833.0 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 01504?

$94,191 a year, against $103,960 across Massachusetts.

What ZIP codes are near 01504?

The closest are 01529 (2.4 mi), 02895 (3.1 mi), 02824 (3.2 mi), 01756 (3.8 mi) and 02019 (3.9 mi).

Is 01504 a PO Box ZIP code?

01504 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “01504 ZIP Code — Blackstone, Massachusetts (Worcester County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/01504

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