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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/55128

55128

ZIP 55128 is in Saint Paul, Minnesota, in Washington County; Central time. Saint Paul has 43 ZIP codes in all.

Type
Standard
Time zone
America/Chicago
County
Washington
Population
29,384
Coordinates
44.9875, -92.9636
☼ Live from 55128 — Saint Paul, MN

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Where 55128 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 55128
  • 🔢 Type 55128 into a pocket calculator and turn it upside down: BZISS — not quite a word, sorry.
  • ➕ As a number, 55,128 = 2 × 2 × 2 × 3 × 2297. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101011101011000
  • 🏠 Its numerical neighbours: 55127 (Saint Paul, MN, 9 mi away) and 55129 (Saint Paul, MN, 8 mi away).
  • 🔄 Backwards, 55128 becomes 82155, which is not a ZIP code at all.
  • 👥 20 other ZIP codes are made of exactly the same digits (12585, 12855, 15258, 15825, 18255, 25185, …). The farthest-flung twin is 85251 in Scottsdale, AZ, 1,283 miles away.
  • 🧭 Farther north than 91% of all ZIP codes, and farther west than 63%.
  • 🎯457 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 55128 and you would come out at 44.99°S, 87.04°E — 843 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 37m of daylight. Shortest: 8h 46m.
  • 📏 At 11.2 square miles of land, 55128 is bigger than 29% of ZIP codes — room for about 8.5 Central Parks.
🌙 The sky over 55128 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population29,384This ZIP29,384
Households11,901This ZIP11,901
Housing units12,314This ZIP12,314
Median age39.6This ZIP39.6Minnesota38.8US 38.9
Median household income$93,210This ZIP$93,210Minnesota$89,062US $80,734
Median home value$312,800This ZIP$312,800Minnesota$329,300US $332,700
Median gross rent$1,476This ZIP$1,476Minnesota$1,280US $1,413
Bachelor's degree or higher34.9%This ZIP34.9%
Mean commute23.5 minThis ZIP23.5 min
Population density2,616.3 / sq miThis ZIP2,616.3 / sq mi

Business and tax activity

Business establishments699This ZIP699
Employees10,830This ZIP10,830
Annual payroll$627,517,000This ZIP$627,517,000
Tax returns filed15,800This ZIP15,800
Total adjusted gross income$1,101,585,000This ZIP$1,101,585,000

Land area

Land area11.23 sq miThis ZIP11.23 sq mi
Water area0.39 sq miThis ZIP0.39 sq mi

Other place names in 55128

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

ZIP codes near 55128

ZIPCityDistance
55083 Stillwater, MN 2.5 mi
55042 Lake Elmo, MN 3.5 mi
55109 Saint Paul, MN 3.7 mi
55119 Saint Paul, MN 3.9 mi
55090 Willernie, MN 4.6 mi
55106 Saint Paul, MN 4.6 mi
55125 Saint Paul, MN 5.0 mi
55115 Saint Paul, MN 5.5 mi
55130 Saint Paul, MN 5.9 mi
55131 Saint Paul, MN 5.9 mi

Find every ZIP code within 10 miles of 55128 →

Questions about this ZIP code

Where is ZIP code 55128?

55128 is in Saint Paul, Minnesota, in Washington County, part of the Minneapolis-St. Paul-Bloomington, MN-WI metropolitan area. Its published point location is 44.9875, -92.9636.

What county is 55128 in?

55128 lies in Washington County.

What time zone is 55128 in?

55128 uses America/Chicago.

How many people live in 55128?

About 29,384 people live in ZIP code 55128, in 11,901 households, at 2,616.3 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 55128?

$93,210 a year, against $89,062 across Minnesota.

What ZIP codes are near 55128?

The closest are 55083 (2.5 mi), 55042 (3.5 mi), 55109 (3.7 mi), 55119 (3.9 mi) and 55090 (4.6 mi).

Is 55128 a PO Box ZIP code?

55128 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “55128 ZIP Code — Saint Paul, Minnesota (Washington County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/55128

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