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Where 51346 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 51346 into a pocket calculator and turn it upside down: ghEIS — not quite a word, sorry.
- ➕ As a number, 51,346 = 2 × 25673. Its digits add up to 19, a total 2,454 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100100010010010 - 🏠 Its numerical neighbours: 51345 (Harris, IA, 16 mi away) and 51347 (Lake Park, IA, 17 mi away).
- 🔄 Backwards, 51346 becomes 64315, which is not a ZIP code at all.
- 👥 60 other ZIP codes are made of exactly the same digits (13456, 13465, 13645, 13654, 14536, 14563, …). The farthest-flung twin is 31546 in Jesup, GA, 1,098 miles away.
- 🧭 Farther north than 84% of all ZIP codes, and farther west than 70%.
- 🎯283 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 51346 and you would come out at 43.19°S, 84.55°E — 804 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 23m of daylight. Shortest: 8h 59m.
- 📏 At 146.2 square miles of land, 51346 is bigger than 86% of ZIP codes — room for about 111 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 2,247This ZIP2,247 |
|---|---|
| Households | 963This ZIP963 |
| Housing units | 1,064This ZIP1,064 |
| Median age | 44.2This ZIP44.2Iowa38.6US 38.9 |
| Median household income | $72,426This ZIP$72,426Iowa$75,059US $80,734 |
| Median home value | $156,800This ZIP$156,800Iowa$208,000US $332,700 |
| Median gross rent | $750This ZIP$750Iowa$972US $1,413 |
| Bachelor's degree or higher | 21.9%This ZIP21.9% |
| Mean commute | 20.7 minThis ZIP20.7 min |
| Population density | 15.4 / sq miThis ZIP15.4 / sq mi |
Business and tax activity
| Business establishments | 76This ZIP76 |
|---|---|
| Employees | 557This ZIP557 |
| Annual payroll | $26,153,000This ZIP$26,153,000 |
| Tax returns filed | 1,050This ZIP1,050 |
| Total adjusted gross income | $78,655,000This ZIP$78,655,000 |
Land area
| Land area | 146.17 sq miThis ZIP146.17 sq mi |
|---|---|
| Water area | 0.04 sq miThis ZIP0.04 sq mi |
Counties 51346 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| O'Brien County | 71.4% |
| Osceola County | 20.4% |
| Clay County | 8.2% |
Other place names in 51346
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 51346
| ZIP | City | Distance |
|---|---|---|
51338 | Everly, IA | 6.9 mi |
51248 | Sanborn, IA | 10.4 mi |
51245 | Primghar, IA | 10.8 mi |
51350 | Melvin, IA | 10.8 mi |
51357 | Royal, IA | 12.2 mi |
51058 | Sutherland, IA | 14.0 mi |
51340 | Fostoria, IA | 15.4 mi |
51301 | Spencer, IA | 15.5 mi |
51231 | Archer, IA | 15.7 mi |
51354 | Ocheyedan, IA | 15.9 mi |
Find every ZIP code within 10 miles of 51346 →
Questions about this ZIP code
Where is ZIP code 51346?
51346 is in Hartley, Iowa, in O'Brien County. Its published point location is 43.1913, -95.4536.
What county is 51346 in?
51346 spans 3 counties: O'Brien County, Osceola County and Clay County. Most of it falls in O'Brien 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 51346?
Hartley uses area code 712, from NANPA's telephone records.
What time zone is 51346 in?
51346 uses America/Chicago.
How many people live in 51346?
About 2,247 people live in ZIP code 51346, in 963 households, at 15.4 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 51346?
$72,426 a year, against $75,059 across Iowa.
What ZIP codes are near 51346?
The closest are 51338 (6.9 mi), 51248 (10.4 mi), 51245 (10.8 mi), 51350 (10.8 mi) and 51357 (12.2 mi).
Is 51346 a PO Box ZIP code?
51346 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “51346 ZIP Code — Hartley, Iowa (O'Brien County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51346
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/51346.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.