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/02156

02156

ZIP 02156 is West Medford, Massachusetts, in Middlesex County; Eastern time.

Type
No street area
Time zone
America/New_York
County
Middlesex
Coordinates
42.4223, -71.1328

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 02155, whose figures describe that area — not this ZIP code.

☼ Live from 02156 — West Medford, MA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 02156 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 02156
  • 🔢 Type 02156 into a pocket calculator and turn it upside down: gSIZO — not quite a word, sorry.
  • ➕ As a number, 2,156 = 2 × 2 × 7 × 7 × 11. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100001101100
  • 🏠 Its numerical neighbours: 02155 (Medford, MA, 1 mi away) and 02163 (Boston, MA, 4 mi away).
  • 🔄 Backwards, 02156 becomes 65120, which is not a ZIP code at all.
  • 👥 67 other ZIP codes are made of exactly the same digits (01256, 01526, 01562, 02561, 02651, 05261, …). The farthest-flung twin is 51062 in Westfield, IA, 1,288 miles away.
  • 🧭 Farther north than 78% of all ZIP codes, and farther east than 96%.
  • 🎯1,433 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 02156 and you would come out at 42.42°S, 108.87°E — 819 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 18m of daylight. Shortest: 9h 04m.
🌙 The sky over 02156 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Land area

ZIP codes near 02156

ZIPCityDistance
02474 Arlington, MA 1.2 mi
02155 Medford, MA 1.3 mi
02153 Medford, MA 1.4 mi
02144 Somerville, MA 1.6 mi
02140 Cambridge, MA 2.1 mi
02476 Arlington, MA 2.1 mi
01890 Winchester, MA 2.2 mi
02475 Arlington Heights, MA 2.4 mi
02138 Cambridge, MA 3.0 mi
02145 Somerville, MA 3.0 mi

Find every ZIP code within 10 miles of 02156 →

Questions about this ZIP code

Where is ZIP code 02156?

02156 is in West Medford, Massachusetts, in Middlesex County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 42.4223, -71.1328.

What county is 02156 in?

02156 lies in Middlesex County.

What time zone is 02156 in?

02156 uses America/New_York.

What ZIP codes are near 02156?

The closest are 02474 (1.2 mi), 02155 (1.3 mi), 02153 (1.4 mi), 02144 (1.6 mi) and 02140 (2.1 mi).

Is 02156 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.

Download or cite

Cite this page

zipcodes.pro. “02156 ZIP Code — West Medford, Massachusetts (Middlesex County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/02156

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/02156.json

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