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Where 51520 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 51520 into a pocket calculator and turn it upside down: OZSIS — not quite a word, sorry.
- ➕ As a number, 51,520 = 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 23. Its digits add up to 13, a total 1,179 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100100101000000 - 🏠 Its numerical neighbours: 51510 (Carter Lake, IA, 53 mi away) and 51521 (Avoca, IA, 34 mi away).
- 🔄 Backwards, 51520 becomes 02515, which is not a ZIP code at all.
- 👥 36 other ZIP codes are made of exactly the same digits (01255, 01525, 02155, 05152, 05251, 10552, …). The farthest-flung twin is 02155 in Medford, MA, 1,243 miles away.
- 🧭 Farther north than 75% of all ZIP codes, and farther west than 70%.
- 🎯220 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 51520 and you would come out at 41.97°S, 84.54°E — 857 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 14m of daylight. Shortest: 9h 07m.
- 📏 At 21.2 square miles of land, 51520 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 | 243This ZIP243 |
|---|---|
| Households | 117This ZIP117 |
| Housing units | 123This ZIP123 |
| Median age | 57.9This ZIP57.9Iowa38.6US 38.9 |
| Median household income | $60,843This ZIP$60,843Iowa$75,059US $80,734 |
| Median home value | $146,600This ZIP$146,600Iowa$208,000US $332,700 |
| Median gross rent | $592This ZIP$592Iowa$972US $1,413 |
| Bachelor's degree or higher | 3.2%This ZIP3.2% |
| Mean commute | 17.0 minThis ZIP17.0 min |
| Population density | 11.5 / sq miThis ZIP11.5 / sq mi |
Business and tax activity
| Business establishments | 7This ZIP7 |
|---|---|
| Employees | 160This ZIP160 |
| Annual payroll | $6,638,000This ZIP$6,638,000 |
Land area
| Land area | 21.22 sq miThis ZIP21.22 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 51520
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 51520
| ZIP | City | Distance |
|---|---|---|
51528 | Dow City, IA | 4.7 mi |
51442 | Denison, IA | 6.8 mi |
51439 | Charter Oak, IA | 10.3 mi |
51527 | Defiance, IA | 10.9 mi |
51529 | Dunlap, IA | 12.1 mi |
51441 | Deloit, IA | 12.4 mi |
51060 | Ute, IA | 12.6 mi |
51530 | Earling, IA | 12.6 mi |
51460 | Ricketts, IA | 12.7 mi |
51461 | Schleswig, IA | 14.2 mi |
Find every ZIP code within 10 miles of 51520 →
Questions about this ZIP code
Where is ZIP code 51520?
51520 is in Arion, Iowa, in Crawford County. Its published point location is 41.9692, -95.4593.
What county is 51520 in?
51520 lies in Crawford County.
What area code is 51520?
Arion uses area code 712, from NANPA's telephone records.
What time zone is 51520 in?
51520 uses America/Chicago.
How many people live in 51520?
About 243 people live in ZIP code 51520, in 117 households, at 11.5 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 51520?
$60,843 a year, against $75,059 across Iowa.
What ZIP codes are near 51520?
The closest are 51528 (4.7 mi), 51442 (6.8 mi), 51439 (10.3 mi), 51527 (10.9 mi) and 51529 (12.1 mi).
Is 51520 a PO Box ZIP code?
51520 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “51520 ZIP Code — Arion, Iowa (Crawford County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51520
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/51520.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.