US Gazetteer > Iowa Gazetteer > Iowa ZIP Codes > Sioux City, IA 51101

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Preferred Name, USPS
Sioux City, IA 51101
Not Acceptable, USPS
Wickham Spur, IA 51101

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Weather forecast ZIP Code 51101

The 51101 ZIP Code is centered1 in Woodbury County at latitude 42.494 and longitude -96.395 (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) 51101 was 844 with 423 housing units; a land area land area of 1.16 sq. miles; a water area of 0 sq. miles; and a population density of 726.47 people per sq. mile for Census 2000. Demographic Profile

Sioux City, IA 51101 Map (Marker is ZIP Code Centroid)

Local Search, 51101 ZIP Code| Distance & Driving Directions

Nearby Cities, Towns & Census Designated Places

Sioux City, IA (< 0.1 mile)
South Sioux City, NE (1.9 miles SW)
Springdale, IA (2.4 miles NNE)
Morningside, IA (2.4 miles SE)
Leeds, IA (3.6 miles NNE)
North Shore, NE (4.3 miles SSW)
Riverside, IA (4.7 miles WNW)
Mount Lucia, IA (4.7 miles NW)
Millis Beach, NE (4.9 miles SSW)
North Sioux City, SD (5.1 miles WNW)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Shady Elm Trailer Court, NE (1.4 miles S)
Regency of Sioux City, IA (1.9 miles ESE)
Holiday Village, IA (2.4 miles NE)
Tallview Terrace Mobile Home Park, IA (2.7 miles NE)
Lake Village Trailer Court, NE (3.6 miles SSW)
Freeway Homes, NE (3.9 miles SSW)
Dakota Dunes, SD (4.7 miles W)
Evergreen Village, IA (5.3 miles NNE)
Brookdale, IA (5.8 miles NNW)
Yeomans, IA (6.3 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.