Sioux County, Iowa Population 2023

36,523

Sioux County, Iowa's estimated 2023 population is 36,523 with a growth rate of 0.6% in the past year according to the most recent United States census data. Sioux County, Iowa is the 19th largest county in Iowa. The 2010 population was 33,704 and has seen a growth of 8.36% since that time.

Note: data after 2021 is projected based on recent change
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Sioux County, Iowa Population 2023

Population by Race

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White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Sioux County, Iowa Population by Race

Sioux County, Iowa Population Pyramid 2023

Sioux County, Iowa Median Age

33.6

Total

32.3

Male

35.2

Female

Sioux County, Iowa Adults

There are 25,431 adults, (5,423 of whom are seniors) in Sioux County, Iowa.

Sioux County, Iowa Age Dependency

74.4

Age Dependency Ratio

27.1

Old Age Dependency Ratio

47.3

Child Dependency Ratio

Sioux County, Iowa Sex Ratio

Female17,31449.61%
Male17,58650.39%

Sioux County, Iowa Population by Age

Sioux County, Iowa Renter vs Owner Occupied by Household Type

3.16

Average Family Size

2.64

Average Household Size

80.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Sioux County, Iowa Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Sioux County, Iowa Educational Attainment by Sex (over 25)

Sioux County, Iowa Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among islander people with a rate of 100%.

The highest rate of bachelors degrees is among islander people with a rate of 100%.

Sioux County, Iowa Educational Attainment by Race

All

Male

Female

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$40,512

Average Earnings

$50,254

Average Male

$27,148

Average Female

Sioux County, Iowa Earnings by Educational Attainment

Sioux County, Iowa Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Sioux County, Iowa Language

91.49% of Sioux County, Iowa residents speak only English, while 8.51% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 7.73% of the population.

Sioux County, Iowa Language

Sioux County, Iowa Poverty by Race

rate

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6.62%

Overall Poverty Rate

4.99%

Male Poverty Rate

5.97%

Female Poverty Rate

Poverty in Sioux County, Iowa

The race most likely to be in poverty in Sioux County, Iowa is Hispanic, with 26.37% below the poverty level.

The race least likely to be in poverty in Sioux County, Iowa is White, with 4.49% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.25%. Among those working part-time, it was 8.7%, and for those that did not work, the poverty rate was 9.82%.

Sioux County, Iowa Poverty

rate

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Sioux County, Iowa Poverty Rate by Education

rate

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Sioux County, Iowa Poverty Rate by Employment Status and Sex

Sioux County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Sioux County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

62.7%

Overall Marriage Rate

62.2%

Male Marriage Rate

63.2%

Female Marriage Rate

Sioux County, Iowa Married by Age and Sex

male

female

Sioux County, Iowa Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Sioux County, Iowa Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Sioux County, Iowa Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,247

Number of Veterans

1,202

Male Veterans

45

Female Veterans

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Sioux County, Iowa Veterans by War

count

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Sioux County, Iowa Veterans by Age

count

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Sioux County, Iowa Veterans by Race

Sioux County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.67%

Veteran Poverty Rate

27.75%

Veteran Disability Rate

Sioux County, Iowa Veterans by Education

LaborForceParticipation

72.9%

Labor Force Participation

71.2%

Employment Rate

2.2%

Unemployment Rate

Sioux County, Iowa Employment by Age

LaborForceParticipation

Sioux County, Iowa Employment by Race

LaborForceParticipation

Sioux County, Iowa Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

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

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

66.29%

Born in Sioux County, Iowa

92.07%

Native Born

5.22%

Foreign Born

3.68%

Non Citizen

1.54%

Naturalized

Place of Birth

92.07% of Sioux County, Iowa residents were born in the United States, with 66.29% having been born in Iowa. 3.68% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Sioux County, Iowa Place of Birth

Sources