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Where 52221 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 52221 into a pocket calculator and turn it upside down: IZZZS — not quite a word, sorry.
- ➕ As a number, 52,221 = 3 × 13 × 13 × 103. Its digits add up to 12, a total 940 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100101111111101 - 🏠 Its numerical neighbours: 52220 (Conroy, IA, 18 mi away) and 52222 (Deep River, IA, 4 mi away).
- 🔄 Backwards, 52221 becomes 12225 — and that is a real ZIP code: Albany, NY, 952 miles away.
- 👥 11 other ZIP codes are made of exactly the same digits (12225, 12252, 12522, 15222, 21225, 21252, …). The farthest-flung twin is 12522 in Dover Plains, NY, 965 miles away.
- 🧭 Farther north than 72% of all ZIP codes, and farther west than 62%.
- 🎯350 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 52221 and you would come out at 41.64°S, 87.67°E — 995 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 12m of daylight. Shortest: 9h 09m.
- 📏 At 21.0 square miles of land, 52221 is bigger than 38% of ZIP codes — room for about 16 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 332This ZIP332 |
|---|---|
| Households | 137This ZIP137 |
| Housing units | 137This ZIP137 |
| Median age | 29.9This ZIP29.9Iowa38.6US 38.9 |
| Median household income | $86,473This ZIP$86,473Iowa$75,059US $80,734 |
| Median home value | $228,000This ZIP$228,000Iowa$208,000US $332,700 |
| Median gross rent | $1,667This ZIP$1,667Iowa$972US $1,413 |
| Bachelor's degree or higher | 10.2%This ZIP10.2% |
| Mean commute | 23.0 minThis ZIP23.0 min |
| Population density | 15.8 / sq miThis ZIP15.8 / sq mi |
Business and tax activity
| Business establishments | 5This ZIP5 |
|---|---|
| Employees | 19This ZIP19 |
| Annual payroll | $1,041,000This ZIP$1,041,000 |
| Tax returns filed | 100This ZIP100 |
| Total adjusted gross income | $6,467,000This ZIP$6,467,000 |
Land area
| Land area | 21.04 sq miThis ZIP21.04 sq mi |
|---|---|
| Water area | 0.03 sq miThis ZIP0.03 sq mi |
Counties 52221 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Poweshiek County | 84.7% |
| Iowa County | 15.3% |
Other place names in 52221
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 52221
| ZIP | City | Distance |
|---|---|---|
52222 | Deep River, IA | 4.5 mi |
52347 | Victor, IA | 5.5 mi |
52251 | Ladora, IA | 8.0 mi |
52211 | Brooklyn, IA | 9.9 mi |
52308 | Millersburg, IA | 10.1 mi |
50104 | Gibson, IA | 10.5 mi |
50171 | Montezuma, IA | 10.8 mi |
52232 | Hartwick, IA | 11.4 mi |
50136 | Keswick, IA | 12.0 mi |
50255 | Thornburg, IA | 12.8 mi |
Find every ZIP code within 10 miles of 52221 →
Questions about this ZIP code
Where is ZIP code 52221?
52221 is in Guernsey, Iowa, in Poweshiek County. Its published point location is 41.6409, -92.3317.
What county is 52221 in?
52221 spans 2 counties: Poweshiek County and Iowa County. Most of it falls in Poweshiek County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 52221?
Guernsey uses area code 319, from NANPA's telephone records.
What time zone is 52221 in?
52221 uses America/Chicago.
How many people live in 52221?
About 332 people live in ZIP code 52221, in 137 households, at 15.8 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 52221?
$86,473 a year, against $75,059 across Iowa.
What ZIP codes are near 52221?
The closest are 52222 (4.5 mi), 52347 (5.5 mi), 52251 (8 mi), 52211 (9.9 mi) and 52308 (10.1 mi).
Is 52221 a PO Box ZIP code?
52221 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “52221 ZIP Code — Guernsey, Iowa (Poweshiek County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/52221
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/52221.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.