Find the last 4 digits (ZIP+4) for an address in 51106

ZIP 51106, Sioux City, IA is filled in. Just type the street address.

Addresses are checked through our secure proxy. Bot checks use Cloudflare Turnstile. Each device can run 5 live checks per day; repeats of the same address are free.

ZIP Code 51106 – Sioux City, IA

Sioux City, Iowa · Woodbury County · Central time

ZIP code51106
CitySioux City
StateIowa
CountyWoodbury County
Population28,592
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area33.49 sq mi
Center (lat, long)42.4632, -96.3129

Area codes in this area

712

These are the area codes that most often serve ZIP 51106 (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

51105 Sioux City · 4.1 mi51101 Sioux City · 4.6 mi51111 Sioux City · 5.1 mi51054 Sergeant Bluff · 5.8 mi51102 Sioux City · 6.5 mi68776 South Sioux City · 6.7 mi51104 Sioux City · 6.7 mi51030 Lawton · 6.8 mi

About ZIP 51106

ZIP code 51106 is assigned to Sioux City, Iowa. It lies in Woodbury County. Its Census area covers about 33.49 square miles of land. The closest neighboring ZIP is 51105 (Sioux City), about 4.1 miles away.

Every address in 51106 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