Find the last 4 digits (ZIP+4) for an address in 51537

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ZIP Code 51537 – Harlan, IA

Harlan, Iowa · Shelby County · Central time

ZIP code51537
CityHarlan
StateIowa
CountyShelby County
Population6,382
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area163.79 sq mi
Center (lat, long)41.6501, -95.2972

Area codes in this area

712

These are the area codes that most often serve ZIP 51537 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

51578 Westphalia · 7 mi51447 Kirkman · 7.3 mi51446 Irwin · 10.3 mi51593 Harlan · 11 mi51562 Panama · 11.4 mi51543 Kimballton · 11.6 mi51531 Elk Horn · 11.6 mi51521 Avoca · 11.6 mi

About ZIP 51537

ZIP code 51537 is assigned to Harlan, Iowa. It lies in Shelby County. Its Census area covers about 163.79 square miles of land. The closest neighboring ZIP is 51578 (Westphalia), about 7 miles away.

Every address in 51537 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources