Find the last 4 digits (ZIP+4) for an address in 51442

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ZIP Code 51442 – Denison, IA

Denison, Iowa · Crawford County · Central time

ZIP code51442
CityDenison
StateIowa
CountyCrawford County
Population9,692
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area159.56 sq mi
Center (lat, long)42.0315, -95.3565

Area codes in this area

712

These are the area codes that most often serve ZIP 51442 (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

51441 Deloit · 6 mi51520 Arion · 6.8 mi51465 Vail · 8.9 mi51528 Dow City · 11.2 mi51461 Schleswig · 11.5 mi51448 Kiron · 12.2 mi51439 Charter Oak · 12.4 mi51460 Ricketts · 13 mi

About ZIP 51442

ZIP code 51442 is assigned to Denison, Iowa. It lies in Crawford County. Its Census area covers about 159.56 square miles of land. The closest neighboring ZIP is 51441 (Deloit), about 6 miles away.

Every address in 51442 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