Sioux City, IA Profile: Facts & Data


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Sioux City, Iowa - Basic Facts

The City of Sioux City is the 4th largest city in Iowa with a population of 84,668 as of July 1, 2018. Sioux City ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.

The primary coordinate point for Sioux City is located at latitude 42.4957 and longitude -96.3905 in Woodbury County. The formal boundaries for the City of Sioux City (see map below) encompass a land area of 58.07 sq. miles and a water area of 1.16 sq. miles. Woodbury County is in the Central time zone (GMT -6). The elevation is 1,201 feet.

The City of Sioux City (GNIS ID: 468720) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Sioux City is located within , a minor civil division (MCD) of Woodbury County.

Jump to... (On This Page!)
  1. Sioux City 2018 Demographic Data
  2. Growth Rates for Sioux City (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Iowa Research Tools (Easy Tools & Current Data)
  3. Iowa Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Sioux City, IA Data & Demographics (As of July 1, 2018)


Total Population 84,668
Population in Households 82,189
Population in Familes 63,533
Population in Group Qrtrs 2,479
Population Density2 1,458
Diversity Index3 61


Median Household Income $48,163
Average Household Income $63,277
Per Capita Income $24,389


Total Housing Units 34,087 (100%)
Owner Occupied HU 20,615 (60.5%)
Renter Occupied HU 11,508 (33.8%)
Vacant Housing Units 1,964 ( 5.8%)
Median Home Value $98,549
Average Home Value $132,275


Total Households 32,123
Average Household Size 2.56
Family Households 20,194
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population 0.29% 0.24%
Households 0.22% 0.19%
Families 0.04% 0.07%
Median Household Income   1.24%
Per Capita Income   1.69%

Sioux City, IA - Peer Comparisons by Rank and Percentile

The table below compares Sioux City to the other 1,009 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2018 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 # 4 100th
Population Density # 108 89th
Diversity Index # 12 99th
Median Household Income # 785 22nd
Per Capita Income # 881 13th

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

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