Find the last 4 digits (ZIP+4) for an address in 51108

ZIP 51108, Sioux City, IA is filled in. Just type the street address.

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ZIP Code 51108 – Sioux City, IA

Sioux City, Iowa · Plymouth County · Central time

ZIP code51108
CitySioux City
StateIowa
CountyPlymouth CountyWoodbury County
Population5,960
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area46 sq mi
Center (lat, long)42.5660, -96.3525

Area codes in this area

712

These are the area codes that most often serve ZIP 51108 (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

51104 Sioux City · 3.4 mi51105 Sioux City · 4.1 mi51101 Sioux City · 5.4 mi51103 Sioux City · 5.9 mi51024 Hinton · 6.2 mi51109 Sioux City · 6.7 mi51106 Sioux City · 7.4 mi57049 North Sioux City · 8.5 mi

About ZIP 51108

ZIP code 51108 is assigned to Sioux City, Iowa. It crosses 2 counties; most of its land is in Plymouth County. Its Census area covers about 46 square miles of land. The closest neighboring ZIP is 51104 (Sioux City), about 3.4 miles away.

Every address in 51108 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