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zipcodes.pro — ZIP/55121

55121

ZIP 55121 is in Saint Paul, Minnesota, in Dakota County; Central time. Saint Paul has 43 ZIP codes in all.

Type
Standard
Time zone
America/Chicago
County
Dakota
Population
9,198
Coordinates
44.8459, -93.1596
☼ Live from 55121 — Saint Paul, MN

Weather right now

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Where 55121 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 55121
  • 🔢 Type 55121 into a pocket calculator and turn it upside down: IZISS — not quite a word, sorry.
  • ➕ As a number, 55,121 = 11 × 5011. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101011101010001
  • 🏠 Its numerical neighbours: 55120 (Saint Paul, MN, 2 mi away) and 55122 (Saint Paul, MN, 4 mi away).
  • 🔄 Backwards, 55121 becomes 12155 — and that is a real ZIP code: Schenevus, NY, 926 miles away.
  • 👥 13 other ZIP codes are made of exactly the same digits (11552, 12155, 12515, 12551, 15215, 15251, …). The farthest-flung twin is 11552 in West Hempstead, NY, 1,027 miles away.
  • 🧭 Farther north than 90% of all ZIP codes, and farther west than 64%.
  • 🎯443 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 55121 and you would come out at 44.85°S, 86.84°E — 839 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 36m of daylight. Shortest: 8h 47m.
  • 📏 At 9.6 square miles of land, 55121 is bigger than 27% of ZIP codes — room for about 7.3 Central Parks.
🌙 The sky over 55121 today
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🌋 Shake report
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Source: USGS.

People and housing

Population9,198This ZIP9,198
Households4,199This ZIP4,199
Housing units4,397This ZIP4,397
Median age37.2This ZIP37.2Minnesota38.8US 38.9
Median household income$87,152This ZIP$87,152Minnesota$89,062US $80,734
Median home value$301,400This ZIP$301,400Minnesota$329,300US $332,700
Median gross rent$1,723This ZIP$1,723Minnesota$1,280US $1,413
Bachelor's degree or higher44.4%This ZIP44.4%
Mean commute19.9 minThis ZIP19.9 min
Population density956.9 / sq miThis ZIP956.9 / sq mi

Business and tax activity

Business establishments852This ZIP852
Employees33,227This ZIP33,227
Annual payroll$2,894,721,000This ZIP$2,894,721,000
Tax returns filed5,420This ZIP5,420
Total adjusted gross income$446,666,000This ZIP$446,666,000

Land area

Land area9.61 sq miThis ZIP9.61 sq mi
Water area0.87 sq miThis ZIP0.87 sq mi

Other place names in 55121

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

ZIP codes near 55121

ZIPCityDistance
55120 Saint Paul, MN 2.1 mi
55150 Mendota, MN 2.9 mi
55123 Saint Paul, MN 3.2 mi
55425 Minneapolis, MN 3.3 mi
55111 Saint Paul, MN 3.4 mi
55122 Saint Paul, MN 3.6 mi
55450 Minneapolis, MN 3.9 mi
55118 Saint Paul, MN 4.4 mi
55077 Inver Grove Heights, MN 4.5 mi
55116 Saint Paul, MN 4.5 mi

Find every ZIP code within 10 miles of 55121 →

Questions about this ZIP code

Where is ZIP code 55121?

55121 is in Saint Paul, Minnesota, in Dakota County, part of the Minneapolis-St. Paul-Bloomington, MN-WI metropolitan area. Its published point location is 44.8459, -93.1596.

What county is 55121 in?

55121 lies in Dakota County.

What time zone is 55121 in?

55121 uses America/Chicago.

How many people live in 55121?

About 9,198 people live in ZIP code 55121, in 4,199 households, at 956.9 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 55121?

$87,152 a year, against $89,062 across Minnesota.

What ZIP codes are near 55121?

The closest are 55120 (2.1 mi), 55150 (2.9 mi), 55123 (3.2 mi), 55425 (3.3 mi) and 55111 (3.4 mi).

Is 55121 a PO Box ZIP code?

55121 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “55121 ZIP Code — Saint Paul, Minnesota (Dakota County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/55121

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