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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/55904

55904

ZIP 55904 is in Rochester, Minnesota, in Olmsted County; area code 507; Central time. Rochester has 6 ZIP codes; the others are 55901, 55902, 55903, 55905 and 55906.

Type
Standard
Time zone
America/Chicago
County
Olmsted
Metro area
Rochester, MN
Population
29,639
Coordinates
43.9533, -92.4014
☼ Live from 55904 — Rochester, MN

Weather right now

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Local time: —

Where 55904 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 55904
  • 🔢 Type 55904 into a pocket calculator and turn it upside down: hOGSS — not quite a word, sorry.
  • ➕ As a number, 55,904 = 2 × 2 × 2 × 2 × 2 × 1747. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101101001100000
  • 🏠 Its numerical neighbours: 55903 (Rochester, MN, 5 mi away) and 55905 (Rochester, MN, 9 mi away).
  • 🔄 Backwards, 55904 becomes 40955 — and that is a real ZIP code: Ingram, KY, 674 miles away.
  • 👥 23 other ZIP codes are made of exactly the same digits (04955, 05459, 05495, 40955, 49055, 49505, …). The farthest-flung twin is 95450 in Jenner, CA, 1,634 miles away.
  • 🧭 Farther north than 87% of all ZIP codes, and farther west than 62%.
  • 🎯427 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 55904 and you would come out at 43.95°S, 87.60°E — 902 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 29m of daylight. Shortest: 8h 53m.
  • 📏 At 60.2 square miles of land, 55904 is bigger than 65% of ZIP codes — room for about 46 Central Parks.
🌙 The sky over 55904 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population29,639This ZIP29,639
Households12,487This ZIP12,487
Housing units13,432This ZIP13,432
Median age35.6This ZIP35.6Minnesota38.8US 38.9
Median household income$77,016This ZIP$77,016Minnesota$89,062US $80,734
Median home value$253,600This ZIP$253,600Minnesota$329,300US $332,700
Median gross rent$1,304This ZIP$1,304Minnesota$1,280US $1,413
Bachelor's degree or higher37.6%This ZIP37.6%
Mean commute17.3 minThis ZIP17.3 min
Population density492.7 / sq miThis ZIP492.7 / sq mi

Business and tax activity

Business establishments668This ZIP668
Employees11,749This ZIP11,749
Annual payroll$564,074,000This ZIP$564,074,000
Tax returns filed14,760This ZIP14,760
Total adjusted gross income$969,844,000This ZIP$969,844,000

Land area

Land area60.15 sq miThis ZIP60.15 sq mi
Water area0.08 sq miThis ZIP0.08 sq mi

Other place names in 55904

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 55904

ZIPCityDistance
55903 Rochester, MN 5.2 mi
55902 Rochester, MN 5.4 mi
55976 Stewartville, MN 7.4 mi
55934 Eyota, MN 7.6 mi
55905 Rochester, MN 9.4 mi
55901 Rochester, MN 9.8 mi
55906 Rochester, MN 10.1 mi
55920 Byron, MN 11.7 mi
55967 Racine, MN 12.4 mi
55929 Dover, MN 12.9 mi

Find every ZIP code within 10 miles of 55904 →

Questions about this ZIP code

Where is ZIP code 55904?

55904 is in Rochester, Minnesota, in Olmsted County, part of the Rochester, MN metropolitan area. Its published point location is 43.9533, -92.4014.

What county is 55904 in?

55904 lies in Olmsted County.

What area code is 55904?

Rochester uses area code 507, from NANPA's telephone records.

What time zone is 55904 in?

55904 uses America/Chicago.

How many people live in 55904?

About 29,639 people live in ZIP code 55904, in 12,487 households, at 492.7 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 55904?

$77,016 a year, against $89,062 across Minnesota.

What ZIP codes are near 55904?

The closest are 55903 (5.2 mi), 55902 (5.4 mi), 55976 (7.4 mi), 55934 (7.6 mi) and 55905 (9.4 mi).

Is 55904 a PO Box ZIP code?

55904 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “55904 ZIP Code — Rochester, Minnesota (Olmsted County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/55904

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