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Where 51530 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 51530 into a pocket calculator and turn it upside down: OESIS — not quite a word, sorry.
- ➕ As a number, 51,530 = 2 × 5 × 5153. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100100101001010 - 🏠 Its numerical neighbours: 51529 (Dunlap, IA, 12 mi away) and 51531 (Elk Horn, IA, 22 mi away).
- 🔄 Backwards, 51530 becomes 03515, which is not a ZIP code at all.
- 👥 38 other ZIP codes are made of exactly the same digits (01355, 01535, 05153, 05351, 10535, 10553, …). The farthest-flung twin is 01535 in North Brookfield, MA, 1,196 miles away.
- 🧭 Farther north than 73% of all ZIP codes, and farther west than 70%.
- 🎯213 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 51530 and you would come out at 41.79°S, 84.57°E — 866 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 13m of daylight. Shortest: 9h 08m.
- 📏 At 53.7 square miles of land, 51530 is bigger than 61% of ZIP codes — room for about 41 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 809This ZIP809 |
|---|---|
| Households | 365This ZIP365 |
| Housing units | 421This ZIP421 |
| Median age | 39.3This ZIP39.3Iowa38.6US 38.9 |
| Median household income | $73,750This ZIP$73,750Iowa$75,059US $80,734 |
| Median home value | $163,800This ZIP$163,800Iowa$208,000US $332,700 |
| Median gross rent | $837This ZIP$837Iowa$972US $1,413 |
| Bachelor's degree or higher | 27.4%This ZIP27.4% |
| Mean commute | 22.5 minThis ZIP22.5 min |
| Population density | 15.1 / sq miThis ZIP15.1 / sq mi |
Business and tax activity
| Business establishments | 21This ZIP21 |
|---|---|
| Employees | 75This ZIP75 |
| Annual payroll | $2,765,000This ZIP$2,765,000 |
| Tax returns filed | 370This ZIP370 |
| Total adjusted gross income | $26,299,000This ZIP$26,299,000 |
Land area
| Land area | 53.70 sq miThis ZIP53.70 sq mi |
|---|---|
| Water area | 0.05 sq miThis ZIP0.05 sq mi |
Other place names in 51530
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 51530
| ZIP | City | Distance |
|---|---|---|
51578 | Westphalia, IA | 5.0 mi |
51562 | Panama, IA | 5.4 mi |
51527 | Defiance, IA | 6.0 mi |
51528 | Dow City, IA | 9.1 mi |
51565 | Portsmouth, IA | 11.1 mi |
51537 | Harlan, IA | 11.7 mi |
51529 | Dunlap, IA | 12.1 mi |
51446 | Irwin, IA | 12.3 mi |
51520 | Arion, IA | 12.6 mi |
51447 | Kirkman, IA | 13.1 mi |
Find every ZIP code within 10 miles of 51530 →
Questions about this ZIP code
Where is ZIP code 51530?
51530 is in Earling, Iowa, in Shelby County. Its published point location is 41.7875, -95.4305.
What county is 51530 in?
51530 lies in Shelby County.
What area code is 51530?
Earling uses area code 712, from NANPA's telephone records.
What time zone is 51530 in?
51530 uses America/Chicago.
How many people live in 51530?
About 809 people live in ZIP code 51530, in 365 households, at 15.1 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 51530?
$73,750 a year, against $75,059 across Iowa.
What ZIP codes are near 51530?
The closest are 51578 (5 mi), 51562 (5.4 mi), 51527 (6 mi), 51528 (9.1 mi) and 51565 (11.1 mi).
Is 51530 a PO Box ZIP code?
51530 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “51530 ZIP Code — Earling, Iowa (Shelby County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51530
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/51530.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.