51529
ZIP 51529 is Dunlap, Iowa, mostly in Harrison County; area code 712; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Harrison +3 more
- Metro area
- Omaha, NE-IA
- Population
- 1,732
- Coordinates
- 41.8605, -95.6435
Weather right now
Asking the National Weather Service…
Where 51529 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 51529 into a pocket calculator and turn it upside down: GZSIS — not quite a word, sorry.
- ➕ As a number, 51,529 = 227 × 227. Its digits add up to 22, a total 2,607 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100100101001001 - 🏠 Its numerical neighbours: 51528 (Dow City, IA, 8 mi away) and 51530 (Earling, IA, 12 mi away).
- 🔄 Backwards, 51529 becomes 92515 — and that is a real ZIP code: Riverside, CA, 1,301 miles away.
- 👥 26 other ZIP codes are made of exactly the same digits (12955, 15259, 15295, 15925, 15952, 19255, …). The farthest-flung twin is 95521 in Arcata, CA, 1,468 miles away.
- 🧭 Farther north than 74% of all ZIP codes, and farther west than 70%.
- 🎯208 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 51529 and you would come out at 41.86°S, 84.36°E — 855 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 08m.
- 📏 At 132.3 square miles of land, 51529 is bigger than 84% of ZIP codes — room for about 100 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,732This ZIP1,732 |
|---|---|
| Households | 825This ZIP825 |
| Housing units | 881This ZIP881 |
| Median age | 57.2This ZIP57.2Iowa38.6US 38.9 |
| Median household income | $61,599This ZIP$61,599Iowa$75,059US $80,734 |
| Median home value | $156,800This ZIP$156,800Iowa$208,000US $332,700 |
| Median gross rent | $902This ZIP$902Iowa$972US $1,413 |
| Bachelor's degree or higher | 14.9%This ZIP14.9% |
| Mean commute | 22.6 minThis ZIP22.6 min |
| Population density | 13.1 / sq miThis ZIP13.1 / sq mi |
Business and tax activity
| Business establishments | 57This ZIP57 |
|---|---|
| Employees | 457This ZIP457 |
| Annual payroll | $24,704,000This ZIP$24,704,000 |
| Tax returns filed | 710This ZIP710 |
| Total adjusted gross income | $60,673,000This ZIP$60,673,000 |
Land area
| Land area | 132.34 sq miThis ZIP132.34 sq mi |
|---|---|
| Water area | 0.33 sq miThis ZIP0.33 sq mi |
Counties 51529 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Harrison County | 38.3% |
| Crawford County | 28.1% |
| Monona County | 18.2% |
| Shelby County | 15.4% |
Other place names in 51529
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 51529
| ZIP | City | Distance |
|---|---|---|
51579 | Woodbine, IA | 7.9 mi |
51528 | Dow City, IA | 8.0 mi |
51572 | Soldier, IA | 12.0 mi |
51530 | Earling, IA | 12.1 mi |
51520 | Arion, IA | 12.1 mi |
51562 | Panama, IA | 12.1 mi |
51060 | Ute, IA | 12.7 mi |
51558 | Moorhead, IA | 12.8 mi |
51564 | Pisgah, IA | 14.8 mi |
51439 | Charter Oak, IA | 15.6 mi |
Find every ZIP code within 10 miles of 51529 →
Questions about this ZIP code
Where is ZIP code 51529?
51529 is in Dunlap, Iowa, in Harrison County, part of the Omaha, NE-IA metropolitan area. Its published point location is 41.8605, -95.6435.
What county is 51529 in?
51529 spans 4 counties: Harrison County, Crawford County, Monona County and Shelby County. Most of it falls in Harrison 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 51529?
Dunlap uses area code 712, from NANPA's telephone records.
What time zone is 51529 in?
51529 uses America/Chicago.
How many people live in 51529?
About 1,732 people live in ZIP code 51529, in 825 households, at 13.1 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 51529?
$61,599 a year, against $75,059 across Iowa.
What ZIP codes are near 51529?
The closest are 51579 (7.9 mi), 51528 (8 mi), 51572 (12 mi), 51530 (12.1 mi) and 51520 (12.1 mi).
Is 51529 a PO Box ZIP code?
51529 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “51529 ZIP Code — Dunlap, Iowa (Harrison County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51529
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/51529.json Underlying data is public domain or openly licensed — sources, vintages and licences.