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/49204

49204

ZIP 49204 is in Jackson, Michigan, in Jackson County; area code 517; Eastern time. Jackson has 4 ZIP codes; the others are 49201, 49202 and 49203.

Type
No street area
Time zone
America/Detroit
County
Jackson
Metro area
Jackson, MI
Coordinates
42.2459, -84.4013

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 49201, whose figures describe that area — not this ZIP code.

☼ Live from 49204 — Jackson, MI

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Where 49204 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 49204
  • 🔢 Type 49204 into a pocket calculator and turn it upside down: hOZGh — not quite a word, sorry.
  • ➕ As a number, 49,204 = 2 × 2 × 12301. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100000000110100
  • 🏠 Its numerical neighbours: 49203 (Jackson, MI, 2 mi away) and 49220 (Addison, MI, 17 mi away).
  • 🔄 Backwards, 49204 becomes 40294 — and that is a real ZIP code: Louisville, KY, 285 miles away.
  • 👥 27 other ZIP codes are made of exactly the same digits (02494, 04294, 04429, 04492, 04924, 04942, …). The farthest-flung twin is 09244 in APO AE, a military post office, 4,249 miles away.
  • 🧭 Farther north than 77% of all ZIP codes, and farther east than 59%.
  • 🎯757 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 49204 and you would come out at 42.25°S, 95.60°E — 1,310 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 16m of daylight. Shortest: 9h 05m.
🌙 The sky over 49204 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments23This ZIP23
Employees535This ZIP535
Annual payroll$29,076,000This ZIP$29,076,000

Land area

ZIP codes near 49204

ZIPCityDistance
49202 Jackson, MI 1.6 mi
49203 Jackson, MI 1.7 mi
49254 Michigan Center, MI 4.2 mi
49201 Jackson, MI 5.3 mi
49234 Clarklake, MI 8.4 mi
49283 Spring Arbor, MI 8.5 mi
49269 Parma, MI 9.6 mi
49261 Napoleon, MI 9.8 mi
49246 Horton, MI 10.0 mi
49277 Rives Junction, MI 10.5 mi

Find every ZIP code within 10 miles of 49204 →

Questions about this ZIP code

Where is ZIP code 49204?

49204 is in Jackson, Michigan, in Jackson County, part of the Jackson, MI metropolitan area. Its published point location is 42.2459, -84.4013.

What county is 49204 in?

49204 lies in Jackson County.

What area code is 49204?

Jackson uses area code 517, from NANPA's telephone records.

What time zone is 49204 in?

49204 uses America/Detroit.

What ZIP codes are near 49204?

The closest are 49202 (1.6 mi), 49203 (1.7 mi), 49254 (4.2 mi), 49201 (5.3 mi) and 49234 (8.4 mi).

Is 49204 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. “49204 ZIP Code — Jackson, Michigan (Jackson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/49204

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/49204.json

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