Home > IA > O'Brien County > Hartley > Zip 51346

Zip Code 51346 — Hartley, IA

51346 is a ZIP Code associated with Hartley, IA, located within O'Brien. The postal region supports an estimated population of 2,247 residents across Data Pending housing units, with a population density of 5.9 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.186380, -95.459270)

Data MetricLocal Statistic
Postal / Zip Code51346
Primary CityHartley
State / ProvinceIA
CountyO'Brien
Total Population2,247
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density5.9 people/sq mi
TimezoneAmerica/Chicago

How 51346 Compares

MetricZIP 51346O'Brien CountyIA State Average
Population2,2479,2153,210,984
Median IncomeData PendingN/AN/A
Population Density5.9 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 51338Everly7.0 mi852N/A
Zip 51248Sanborn10.1 mi1,534N/A
Zip 51245Primghar10.4 mi1,377N/A
Zip 51350Melvin10.9 mi383N/A
Zip 51357Royal12.2 mi910N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →