Sioux City, Iowa Population 2021

83,193
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Sioux City is a city located in Woodbury County Iowa. It is also the county seat of Woodbury County. With a 2020 population of 83,193, it is the 4th largest city in Iowa (after Des Moines, Cedar Rapids, and Davenport) and the 421st largest city in the United States . Sioux City is currently growing at a rate of 0.33% annually and its population has increased by 0.62% since the most recent census, which recorded a population of 82,684 in 2010. Sioux City reached it's highest population of 89,159 in 1960. Spanning over 60 miles, Sioux City has a population density of 1,423 people per square mile.

The average household income in Sioux City is $69,899 with a poverty rate of 14.25%. The median rental costs in recent years comes to $783 per month, and the median house value is $116,600. The median age in Sioux City is 34.4 years, 33.4 years for males, and 35.6 years for females.

Sioux City Demographics

According to the most recent ACS, the racial composition of Sioux City was:

  • White: 83.38%
  • Black or African American: 4.38%
  • Two or more races: 3.76%
  • Asian: 3.44%
  • Other race: 2.52%
  • Native American: 2.13%
  • Native Hawaiian or Pacific Islander: 0.40%
The current population of Sioux City, Iowa is 83,193 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 82,380.The last official US Census in 2010 recorded the population at 82,684.

Sioux City, Iowa Population 2021

2019 and 2020 population is estimated by projecting the raw 2018 numbers.

Year Population Growth Growth Rate
2021146,5299140.62%
2020145,6159140.63%
2019144,7019140.63%
2018143,7876220.43%
2017143,165-679-0.47%
2016143,8441080.08%
2015143,7361460.10%
2014143,590-33-0.02%
2013143,623-100-0.07%
2012143,723-448-0.31%
2011144,1712700.19%
2010143,9010.00%

Sioux City Metro Area Population by Year

Population by Race

Race Population Percentage
White68,81683.38%
Black or African American3,6154.38%
Two or More Races3,1023.76%
Asian2,8373.44%
Some Other Race2,0782.52%
American Indian and Alaska Native1,7572.13%
Native Hawaiian and Other Pacific Islander3260.40%
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Sioux City Population by Race

Sioux City Population Pyramid $2021

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Sioux City Median Age

34.4


Total

33.4


Male

35.6


Female

Sioux City Adults

There are 60,733 adults, (11,353 of whom are seniors) in Sioux City.

Sioux City Age Dependency

67.1

Age Dependency Ratio

23

Old Age Dependency Ratio

44.1

Child Dependency Ratio

Sioux City Sex Ratio

Female

41,948

50.83%

Male

40,583

49.17%

Sioux City Population by Age

Sioux City Renter vs Owner Occupied by Household Type

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Sioux City Household Types

Type Owner Renter
Married83.8%16.2%
All62.7%37.3%
Non Family49.6%50.4%
Male48.7%51.3%
Female41.2%58.8%

62.7%

Rate of Home Ownership

Sioux City Households and Families

Type Count Average Size Owned
All31,1102.5662.7
Married13,2193.2283.8
Non Family11,0881.2649.6
Female4,8273.3141.2
Male1,9763.6748.7

3.17

Average Family Size

2.56

Average Household Size

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Sioux City Households by Type

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Education Attained Count Percentage
Less Than 9th Grade3,7787.28%
9th to 12th Grade3,9657.64%
High School Graduate16,86632.48%
Some College10,55320.32%
Associates Degree5,27110.15%
Bachelors Degree7,78514.99%
Graduate Degree3,7137.15%
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Sioux City Educational Attainment by Sex (over 25)

Sioux City Educational Attainment by Race

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Race Total High School Bachelors
White39,09336,31510,402
Hispanic7,3743,801436
Black2,0901,541224
Asian1,9741,334222
Other Race1,04645415
Native American924841146
2+ Races588518116
Islander2101639

The highest rate of high school graduation is among white people with a rate of 92.89%.

The highest rate of bachelors degrees is among white people with a rate of 26.61%.

Sioux City Educational Attainment by Race

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Name Average Male Female
Overall$37,307$42,933$31,204
Less Than 9th Grade$32,208$40,034$24,750
High School Graduate$31,616$38,896$25,493
Some College$35,452$40,948$30,486
Bachelors Degree$48,599$59,207$44,417
Graduate Degree$66,037$66,818$65,571

$37,307

Average Earnings

$42,933

Average Male

$31,204

Average Female

Sioux City Earnings by Educational Attainment

Sioux City Language by Age

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Sioux City Language

80.52% of Sioux City residents speak only English, while 19.48% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 14.64% of the population.

Sioux City Language

Sioux City Poverty by Race

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Name Total In Poverty Poverty Rate
White54,3215,70110.50%
Hispanic15,9173,61422.71%
Black3,4651,06330.68%
Native1,74076343.85%
Multiple2,95964721.87%
Asian2,7402047.45%
Other2,0141577.80%
Islander311144.50%

14.25%

Overall Poverty Rate

13.08%

Male Poverty Rate

15.38%

Female Poverty Rate

Poverty in Sioux City

The race most likely to be in poverty in Sioux City is Native, with 43.85% below the poverty level.

The race least likely to be in poverty in Sioux City is Islander, with 4.50% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.56%. Among those working part-time, it was 21.50%, and for those that did not work, the poverty rate was 23.46%.

Sioux City Poverty

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Name Poverty
Less Than 9th Grade19.29%
High School12.57%
Some College10.63%
Bachelors or Greater3.65%

Sioux City Poverty Rate by Education

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Rate Poverty
Female Unemployed33.37%
Male Unemployed20.53%
Female Employed10.74%
Male Employed5.11%

Sioux City Poverty Rate by Employment Status and Sex

Sioux City Income by Household Type

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Name Median Mean
Households$55,433$69,899
Families$67,866$80,042
Married Families$86,563$97,752
Non Families$31,844$46,211
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Income by Household Type

Sioux City Marital Status

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Marriage Rates

45.1%

Overall Marriage Rate

45.6%

Male Marriage Rate

44.7%

Female Marriage Rate

Sioux City Married by Age and Sex

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Sioux City Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Sioux City Marital Status by Race

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Sioux City Marital Status

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4,047

Number of Veterans

3,776

Male Veterans

271

Female Veterans

War Veterans
Vietnam1,557
Second Gulf War859
First Gulf War550
Korea360
World War II161

Sioux City Veterans by War

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Age Group Veterans
65 to 741,098
75+922
35 to 54886
55 to 64709
18 to 34432

Sioux City Veterans by Age

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Name Veterans % of Total
White3,8617.43%
Hispanic1721.81%
Native American726.45%
Other Race432.73%
Asian331.51%
2+ Races212.11%
Black170.65%

Sioux City Veterans by Race

Sioux City Veterans by Education

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8.35%

Veteran Poverty Rate

30.56%

Veteran Disability Rate

Sioux City Veterans by Education

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69.5%

Labor Force Participation

66.1%

Employment Rate

4.8%

Unemployment Rate

Sioux City Employment by Age

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Sioux City Employment by Race

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Sioux City Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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64.85%

Born in Sioux City

90.23%

Native Born

9.77%

Foreign Born

4.48%

Non Citizen

5.29%

Naturalized

Place of Birth

90.23% of Sioux City residents were born in the United States, with 64.85% having been born in Iowa. 4.48% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Sioux City Place of Birth

Year Population Growth Annual Growth Rate
202183,1932710.33%
202082,9222710.33%
201982,6512710.33%
201882,3801460.18%
201782,234-514-0.62%
201682,748790.10%
201582,6691350.16%
201482,534-74-0.09%
201382,608-81-0.10%
201282,689-407-0.49%
201183,0962380.29%
201082,858-2,155-0.26%
200085,0134,5080.55%
199080,505-1,498-0.18%
198082,003-3,922-0.47%
197085,925-3,234-0.37%
196089,1595,1680.60%
195083,9911,6270.20%
194082,3643,1810.39%
193079,1837,9561.06%
192071,22723,3994.06%
191047,82814,7173.75%
190033,111-4,695-1.32%
189037,80630,44017.77%
18807,3663,9658.03%
18703,4010.00%

Sioux City Population by Year