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zipcodes.pro — ZIP/52321

52321

ZIP 52321 is Onslow, Iowa, in Jones County; area code 563; Central time.

Type
Standard
Time zone
America/Chicago
County
Jones
Metro area
Cedar Rapids, IA
Population
395
Coordinates
42.1417, -90.9831
☼ Live from 52321 — Onslow, IA

Weather right now

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NEXRAD radar
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Local time: —

Where 52321 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 52321
  • 🔢 Type 52321 into a pocket calculator and turn it upside down: IZEZS — not quite a word, sorry.
  • ➕ 52321 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100110001100001
  • 🏠 Its numerical neighbours: 52320 (Olin, IA, 13 mi away) and 52322 (Oxford, IA, 51 mi away).
  • 🔄 Backwards, 52321 becomes 12325 — and that is a real ZIP code: Schenectady, NY, 862 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, 1,052 miles away.
  • 🧭 Farther north than 76% of all ZIP codes, and farther west than 59%.
  • 🎯427 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 52321 and you would come out at 42.14°S, 89.02°E — 1,030 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 16m of daylight. Shortest: 9h 06m.
  • 📏 At 37.5 square miles of land, 52321 is bigger than 52% of ZIP codes — room for about 29 Central Parks.
🌙 The sky over 52321 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population395This ZIP395
Households146This ZIP146
Housing units162This ZIP162
Median age40.2This ZIP40.2Iowa38.6US 38.9
Median household income$77,708This ZIP$77,708Iowa$75,059US $80,734
Median home value$131,300This ZIP$131,300Iowa$208,000US $332,700
Median gross rent$861This ZIP$861Iowa$972US $1,413
Bachelor's degree or higher13.5%This ZIP13.5%
Mean commute28.7 minThis ZIP28.7 min
Population density10.5 / sq miThis ZIP10.5 / sq mi

Business and tax activity

Business establishments5This ZIP5
Employees13This ZIP13
Annual payroll$2,068,000This ZIP$2,068,000
Tax returns filed180This ZIP180
Total adjusted gross income$12,843,000This ZIP$12,843,000

Land area

Land area37.55 sq miThis ZIP37.55 sq mi
Water area0.00 sq mi

Other place names in 52321

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

ZIP codes near 52321

ZIPCityDistance
52309 Monmouth, IA 4.9 mi
52362 Wyoming, IA 5.8 mi
52212 Center Junction, IA 5.9 mi
52207 Baldwin, IA 8.5 mi
52033 Cascade, IA 9.6 mi
52323 Oxford Junction, IA 11.0 mi
52310 Monticello, IA 12.2 mi
52032 Bernard, IA 12.6 mi
52320 Olin, IA 13.0 mi
52252 Langworthy, IA 13.1 mi

Find every ZIP code within 10 miles of 52321 →

Questions about this ZIP code

Where is ZIP code 52321?

52321 is in Onslow, Iowa, in Jones County, part of the Cedar Rapids, IA metropolitan area. Its published point location is 42.1417, -90.9831.

What county is 52321 in?

52321 lies in Jones County.

What area code is 52321?

Onslow uses area code 563, from NANPA's telephone records.

What time zone is 52321 in?

52321 uses America/Chicago.

How many people live in 52321?

About 395 people live in ZIP code 52321, in 146 households, at 10.5 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 52321?

$77,708 a year, against $75,059 across Iowa.

What ZIP codes are near 52321?

The closest are 52309 (4.9 mi), 52362 (5.8 mi), 52212 (5.9 mi), 52207 (8.5 mi) and 52033 (9.6 mi).

Is 52321 a PO Box ZIP code?

52321 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “52321 ZIP Code — Onslow, Iowa (Jones County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/52321

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