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Where 53221 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.
- 🔢 Type 53221 into a pocket calculator and turn it upside down: IZZES — not quite a word, sorry.
- ➕ As a number, 53,221 = 7 × 7603. Its digits add up to 13, a total 1,179 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100111111100101 - 🏠 Its numerical neighbours: 53220 (Milwaukee, WI, 3 mi away) and 53222 (Milwaukee, WI, 10 mi away).
- 🔄 Backwards, 53221 becomes 12235 — and that is a real ZIP code: Albany, NY, 719 miles away.
- 👥 36 other ZIP codes are made of exactly the same digits (12235, 12325, 12523, 13225, 13252, 15223, …). The farthest-flung twin is 32125 in Daytona Beach, FL, 1,024 miles away.
- 🧭 Farther north than 82% of all ZIP codes, and farther west than 50%.
- 🎯592 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 53221 and you would come out at 42.95°S, 92.06°E — 1,130 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 21m of daylight. Shortest: 9h 00m.
- 📏 At 9.0 square miles of land, 53221 is bigger than 26% of ZIP codes — room for about 6.8 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 38,044This ZIP38,044 |
|---|---|
| Households | 16,293This ZIP16,293 |
| Housing units | 16,865This ZIP16,865 |
| Median age | 38.8This ZIP38.8Wisconsin40.2US 38.9 |
| Median household income | $63,265This ZIP$63,265Wisconsin$77,485US $80,734 |
| Median home value | $219,600This ZIP$219,600Wisconsin$266,500US $332,700 |
| Median gross rent | $1,119This ZIP$1,119Wisconsin$1,087US $1,413 |
| Bachelor's degree or higher | 24.7%This ZIP24.7% |
| Mean commute | 24.1 minThis ZIP24.1 min |
| Population density | 4,222.9 / sq miThis ZIP4,222.9 / sq mi |
Business and tax activity
| Business establishments | 635This ZIP635 |
|---|---|
| Employees | 10,083This ZIP10,083 |
| Annual payroll | $506,590,000This ZIP$506,590,000 |
| Tax returns filed | 19,000This ZIP19,000 |
| Total adjusted gross income | $1,060,699,000This ZIP$1,060,699,000 |
Land area
| Land area | 9.01 sq miThis ZIP9.01 sq mi |
|---|---|
| Water area | 0.01 sq miThis ZIP0.01 sq mi |
Other place names in 53221
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 53221
| ZIP | City | Distance |
|---|---|---|
53220 | Milwaukee, WI | 2.5 mi |
53207 | Milwaukee, WI | 2.7 mi |
53129 | Greendale, WI | 3.1 mi |
53215 | Milwaukee, WI | 3.1 mi |
53219 | Milwaukee, WI | 3.8 mi |
53235 | Saint Francis, WI | 4.0 mi |
53110 | Cudahy, WI | 4.2 mi |
53204 | Milwaukee, WI | 4.6 mi |
53295 | Milwaukee, WI | 5.0 mi |
53172 | South Milwaukee, WI | 5.1 mi |
Find every ZIP code within 10 miles of 53221 →
Questions about this ZIP code
Where is ZIP code 53221?
53221 is in Milwaukee, Wisconsin, in Milwaukee County, part of the Milwaukee-Waukesha, WI metropolitan area. Its published point location is 42.9539, -87.9433.
What county is 53221 in?
53221 lies in Milwaukee County.
What area code is 53221?
Milwaukee uses area codes 414 and 262, from NANPA's telephone records.
What time zone is 53221 in?
53221 uses America/Chicago.
How many people live in 53221?
About 38,044 people live in ZIP code 53221, in 16,293 households, at 4,222.9 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 53221?
$63,265 a year, against $77,485 across Wisconsin.
What ZIP codes are near 53221?
The closest are 53220 (2.5 mi), 53207 (2.7 mi), 53129 (3.1 mi), 53215 (3.1 mi) and 53219 (3.8 mi).
Is 53221 a PO Box ZIP code?
53221 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “53221 ZIP Code — Milwaukee, Wisconsin (Milwaukee County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/53221
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/53221.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.