Sioux City, IA 51104 ZIP Code Profile

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Sioux City, IA

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ZIP Code 51104: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Sioux City, IA 51104

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 342
  • Single Family Addresses: 7,211
  • Multi-Family Addresses: 1,694
  • County: Woodbury County
  • Centroid: Latitude 42.522, Longitude -96.384
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

Neighborhood Data

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Sioux City, IA 51104 Data & Demographics (As of July 1, 2017)


Total Population 21,605
Daytime Population: Workers 7,349
Daytime Population: Residents 10,635
Total Daytime Population (TDP) 17,984
Ratio TDP/Total Population1 0.83
Population in Households 21,430
Population in Familes 16,913
Population in Group Qrtrs 175
Population Density2 2,901
Diversity Index3 57


Median Household Income $55,645
Average Household Income $75,214
Per Capita Income $29,534


Total Housing Units 8,899 (100%)
Owner Occupied HU 5,457 (61.3%)
Renter Occupied HU 2,992 (33.6%)
Vacant Housing Units 450 ( 5.1%)
Median Home Value $125,712
Average Home Value $153,473


Total Households 8,449
Average Household Size 2.54
Family Households 5,368
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.2% 0.18%
Households 0.11% 0.12%
Families -0.11% -0.03%
Median Household Income   1.09%
Per Capita Income   1.79%

Sioux City, IA 51104 - Peer Comparisons by Rank and Percentile

The table below compares 51104 to the other 963 ZIP Codes in Iowa by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 37 96th
Population Density # 17 98th
Diversity Index # 19 98th
Median Household Income # 420 56th
Per Capita Income # 338 65th

Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.

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