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Sioux City, IA 51103

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The 51103 ZIP Code is centered1 in Woodbury County at latitude 42.507 and longitude -96.433 (Panoramio Photos). It is a standard type ZIP Code. Woodbury County is in the Central Time Zone (UTC -6 hours) and observes daylight savings time.

The population in ZIP Code Tabulation Area (ZCTA) 51103 was 17,494 with 6,574 housing units; a land area land area of 12.16 sq. miles; a water area of 0 sq. miles; and a population density of 1,439.13 people per sq. mile for Census 2000. Demographic Profile

Sioux City, IA 51103 Map (Marker is ZIP Code Centroid)

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Nearby Cities, Towns & Census Designated Places

Sioux City, IA (1.9 miles ESE)
South Sioux City, NE (2.4 miles SSE)
North Sioux City, SD (2.7 miles WNW)
Riverside, IA (2.7 miles WNW)
Mount Lucia, IA (2.7 miles NW)
Springdale, IA (3.4 miles ENE)
Leeds, IA (4.3 miles ENE)
Morningside, IA (4.5 miles SE)
North Shore, NE (4.5 miles S)
Millis Beach, NE (5.1 miles S)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Shady Elm Trailer Court, NE (2.7 miles SE)
Dakota Dunes, SD (3.1 miles WSW)
Holiday Village, IA (3.9 miles E)
Tallview Terrace Mobile Home Park, IA (4.1 miles ENE)
Freeway Homes, NE (4.1 miles S)
Lake Village Trailer Court, NE (4.3 miles S)
McCook Lake, SD (4.3 miles WNW)
Regency of Sioux City, IA (4.3 miles ESE)
Brookdale, IA (4.3 miles N)
Yeomans, IA (5.5 miles N)

ZIP Codes - Key Concepts

  1. ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
  2. The centroid of a ZIP Code may be in one County and the associated city/town in another.
  3. In rural areas, a single ZIP Code may be used for cities and towns in several different Counties.
  4. ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
  5. ZIP Codes are only loosely tied to cities.

1 Keeping the above key concepts in mind, what we informally refer to as the "center" of a ZIP Code is most often actually the centroid of a polygon.