Sioux County, Iowa Population 2024

36,365

Sioux County, Iowa's estimated 2024 population is 36,365 with a growth rate of 0.33% in the past year according to the most recent United States census data. Sioux County, Iowa is the 18th largest county in Iowa. The 2010 population was 33,755 and has seen a growth of 7.73% since that time.

Note: data after 2022 is projected based on recent change

34 Rows

Year
Population
Growth
Change
202936,9601190.32%
202836,8411190.32%
202736,7221190.33%
202636,6031190.33%
202536,4841190.33%
202436,3651190.33%
202336,2461190.33%
202236,1271680.47%
202135,959740.21%
202035,8859352.68%
201934,9501830.53%
201834,767-17-0.05%
201734,784-171-0.49%
201634,9551910.55%
201534,7641160.33%
201434,6481370.4%
201334,5112220.65%
201234,2892670.78%
201134,0222670.79%
201033,75500%
199029,903-910-2.95%
198030,8132,81710.06%
197027,9961,6216.15%
196026,375-6-0.02%
195026,381-828-3.04%
194027,2094031.5%
193026,8063481.32%
192026,4581,2104.79%
191025,2481,9118.19%
190023,3374,96727.04%
189018,37012,944238.56%
18805,4264,850842.01%
18705765665660%
186010-36,950-99.97%
2024 Growth Rate
0.33% (119)
County Website
Sioux County
State
Iowa
County Seat
Orange City
2020 Population
35,885
Area
768 mi²
Density
47 people/mi²
Growth Since 2020
1.34% (480)
Founded
1851

Population by Race

Race
Population
Percentage (of total)
White32,39490.45%
Two or more races1,6014.47%
Other race1,3743.84%
Black or African American1800.5%
Asian1580.44%
Native American1020.28%
Native Hawaiian or Pacific Islander60.02%

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Sioux County, Iowa Population by Race

Sioux County, Iowa Population Pyramid 2024

Sioux County, Iowa Median Age

34.4

Total

33.4

Male

35.2

Female

Sioux County, Iowa Adults

There are 26,169 adults, (5,762 of whom are seniors) in Sioux County, Iowa.

Sioux County, Iowa Age Dependency

75.5

Age Dependency Ratio

28.2

Old Age Dependency Ratio

47.3

Child Dependency Ratio

Sioux County, Iowa Sex Ratio

Female17,67549.35%
Male18,14050.65%

Sioux County, Iowa Population by Age

Sioux County, Iowa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All12,4622.6979.220.8
Married8,0523.3290.19.9
Non Family3,5461.1656.443.6
Female5862.946436
Male2783.587.112.9

3.25

Average Family Size

2.69

Average Household Size

79.2%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Sioux County, Iowa Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade8383.92%
Associates Degree2,97813.94%
Bachelors Degree4,76722.32%
Graduate Degree1,9108.94%
High School Graduate6,15428.82%
Less Than 9th Grade9514.45%
Some College3,75817.6%

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

Race
Total
High School
Bachelors
White19,25418,3766,492
Hispanic1,727822119
Other Race77133181
2+ Races57744033
Asian868629
Native American80550
Black717123
Islander666

The highest rate of high school graduation is among black 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

Name
Average
Male
Female
Bachelors Degree$50,648$71,821$41,540
Graduate Degree$66,031$68,964$65,089
High School Graduate$40,732$52,335$27,073
Less Than 9th Grade$36,602$45,043$31,344
Overall$46,661$56,179$34,131
Some College$42,494$58,767$28,295

$46,661

Average Earnings

$56,179

Average Male

$34,131

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

91.08% of Sioux County, Iowa residents speak only English, while 8.92% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 8.06% of the population.

Sioux County, Iowa Language

Sioux County, Iowa Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White28,7531,5585.42%
Hispanic4,03543410.76%
Other1,3741269.17%
Asian1363122.79%
Multiple1,508171.13%

6.08%

Overall Poverty Rate

5.45%

Male Poverty Rate

6.72%

Female Poverty Rate

Poverty in Sioux County, Iowa

The race most likely to be in poverty in Sioux County, Iowa is Asian, with 22.79% below the poverty level.

The race least likely to be in poverty in Sioux County, Iowa is Multiple, with 1.13% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.63%. Among those working part-time, it was 7.73%, and for those that did not work, the poverty rate was 15.58%.

Sioux County, Iowa Poverty

rate

Rate
Poverty
Less Than 9th Grade13.68%
High School6.13%
Some College4.3%
Bachelors or Greater4.17%

Sioux County, Iowa Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed37.06%
Female Employed2.49%
Male Employed1.53%
Female Unemployed0%

Sioux County, Iowa Poverty Rate by Employment Status and Sex

Sioux County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$95,737$115,400
Households$81,914$98,083
Married Families$101,836$-999,999,999
Non Families$36,130$50,909

mean

median

Income by Household Type

Sioux County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

59.8%

Overall Marriage Rate

59.9%

Male Marriage Rate

59.7%

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

1,157

Number of Veterans

1,101

Male Veterans

56

Female Veterans

War
Veterans
Vietnam479
Second Gulf War227
First Gulf War180
Korea131
World War II77

Sioux County, Iowa Veterans by War

count

Age Group
Veterans
75+434
65 to 74370
35 to 54140
18 to 34138
55 to 6475

Sioux County, Iowa Veterans by Age

count

Name
Veterans
% of Total
White1,1450.04765472177134057
Other Race70.007625272331154684
2+ Races50.006142506142506142

Sioux County, Iowa Veterans by Race

Sioux County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

10.86%

Veteran Poverty Rate

27.52%

Veteran Disability Rate

Sioux County, Iowa Veterans by Education

LaborForceParticipation

71.9%

Labor Force Participation

70.1%

Employment Rate

2.3%

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

68.05%

Born in Sioux County, Iowa

94.25%

Native Born

5.75%

Foreign Born

3.34%

Non Citizen

2.42%

Naturalized

Place of Birth

94.25% of Sioux County, Iowa residents were born in the United States, with 68.05% having been born in Iowa. 3.34% 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