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/48113

48113

ZIP 48113 is in Ann Arbor, Michigan, in Washtenaw County; area code 734; Eastern time. Ann Arbor has 8 ZIP codes in all.

Type
No street area
Time zone
America/Detroit
County
Washtenaw
Metro area
Ann Arbor, MI
Coordinates
42.2535, -83.8366

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 48103, whose figures describe that area — not this ZIP code.

☼ Live from 48113 — Ann Arbor, MI

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Local time: —

Where 48113 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 48113
  • 🔢 Type 48113 into a pocket calculator and turn it upside down: EIIBh — not quite a word, sorry.
  • ➕ As a number, 48,113 = 13 × 3701. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011101111110001
  • 🏠 Its numerical neighbours: 48112 (Belleville, MI, 18 mi away) and 48114 (Brighton, MI, 22 mi away).
  • 🔄 Backwards, 48113 becomes 31184, which is not a ZIP code at all.
  • 👥 26 other ZIP codes are made of exactly the same digits (13148, 13418, 13814, 13841, 14138, 14813, …). The farthest-flung twin is 84131 in Salt Lake City, UT, 1,451 miles away.
  • 🧭 Farther north than 77% of all ZIP codes, and farther east than 60%.
  • 🎯785 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 48113 and you would come out at 42.25°S, 96.16°E — 1,293 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 16m of daylight. Shortest: 9h 05m.
🌙 The sky over 48113 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments5This ZIP5
Employees40This ZIP40
Annual payroll$1,104,000This ZIP$1,104,000

Land area

ZIP codes near 48113

ZIPCityDistance
48106 Ann Arbor, MI 0.0 mi
48107 Ann Arbor, MI 0.0 mi
48103 Ann Arbor, MI 0.7 mi
48108 Ann Arbor, MI 5.8 mi
48104 Ann Arbor, MI 6.2 mi
48109 Ann Arbor, MI 7.1 mi
48115 Bridgewater, MI 7.5 mi
48176 Saline, MI 8.1 mi
48130 Dexter, MI 8.5 mi
48105 Ann Arbor, MI 8.8 mi

Find every ZIP code within 10 miles of 48113 →

Questions about this ZIP code

Where is ZIP code 48113?

48113 is in Ann Arbor, Michigan, in Washtenaw County, part of the Ann Arbor, MI metropolitan area. Its published point location is 42.2535, -83.8366.

What county is 48113 in?

48113 lies in Washtenaw County.

What area code is 48113?

Ann Arbor uses area code 734, from NANPA's telephone records.

What time zone is 48113 in?

48113 uses America/Detroit.

What ZIP codes are near 48113?

The closest are 48106 (0 mi), 48107 (0 mi), 48103 (0.7 mi), 48108 (5.8 mi) and 48104 (6.2 mi).

Is 48113 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. “48113 ZIP Code — Ann Arbor, Michigan (Washtenaw County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/48113

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/48113.json

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