U.S. ZIP Code tools

51111 · ZIP Code · Sioux City IA

ZIP Code
51111

Sioux City, IA

City / locality
Sioux City
State
Iowa
ZIP Code type
Type not provided
Latitude
42.4089
Longitude
-96.3713
Coordinate source
GeoNames Postal
Source
GeoNames Postal
Source year
Inherited source snapshot

Some U.S. place names and coordinates come from GeoNames as geographic references. They are not confirmation of the USPS preferred mailing city.

ZCTAs are Census statistical areas. Their boundaries do not represent every USPS ZIP Code or an exact postal delivery boundary.

ZIP Code map

ZCTAs are Census statistical areas. Their boundaries do not represent every USPS ZIP Code or an exact postal delivery boundary.

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Population & demographics

acs/acs5 · 2024

Population & demographics

ACS figures are five-year statistical estimates for a ZCTA. They do not describe individual addresses; consider the margin of error when comparing values.

Estimated population

39People · Margin of error ±51

Median age

26.4Years · Margin of error ±36.3

Median household income

—USD

Total households

27Households · Margin of error ±34

County

Verified ZIP-to-county crosswalk data is not currently available.

Nearby postal codes

ZIP CodeCity / localityStateDistance calculator
51054Sergeant BluffIA1.03 Miles / 1.66 km
51102Sioux CityIA3.90 Miles / 6.28 km
51106Sioux CityIA4.13 Miles / 6.65 km
68776South Sioux CityNE4.59 Miles / 7.39 km
68731Dakota CityNE4.63 Miles / 7.45 km
51101Sioux CityIA6.31 Miles / 10.16 km
51105Sioux CityIA6.54 Miles / 10.53 km
51052SalixIA6.88 Miles / 11.08 km
68030HomerNE7.16 Miles / 11.52 km
51103Sioux CityIA7.39 Miles / 11.89 km

Source

GeoNames Postal

Source year: Source vintage not supplied

GeoNames Postal

U.S. Census Bureau Gazetteer

Source year: 2026 Gazetteer

U.S. Census Bureau Gazetteer

U.S. Census Bureau ZCTA cartographic boundaries

Source year: 2020 Census ZCTA cartographic

U.S. Census Bureau ZCTA cartographic boundaries

U.S. Census Bureau ACS 5-year

Source year: 2024 ACS 5-year

U.S. Census Bureau ACS 5-year