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Sioux County, Iowa Population 2021
Sioux County, Iowa's estimated population is 34,961 with a growth rate of 0.15% in the past year according to the most recent United States census data. Sioux County, Iowa is the 21st largest county inIowa. The 2010 Population was 33,754 and has seen a growth of 3.58% since this time.
Note: 2020 and 2021 data is projected
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2021 | 34,961 | 53 | 0.15% |
| 2020 | 34,908 | 53 | 0.15% |
| 2019 | 34,855 | 53 | 0.15% |
| 2018 | 34,802 | 21 | 0.06% |
| 2017 | 34,781 | -163 | -0.47% |
| 2016 | 34,944 | 190 | 0.55% |
| 2015 | 34,754 | 119 | 0.34% |
| 2014 | 34,635 | 132 | 0.38% |
| 2013 | 34,503 | 221 | 0.64% |
| 2012 | 34,282 | 266 | 0.78% |
| 2011 | 34,016 | 262 | 0.78% |
| 2010 | 33,754 | 3,851 | 12.88% |
| 1990 | 29,903 | -910 | -2.95% |
| 1980 | 30,813 | 2,817 | 10.06% |
| 1970 | 27,996 | 1,621 | 6.15% |
| 1960 | 26,375 | -6 | -0.02% |
| 1950 | 26,381 | -828 | -3.04% |
| 1940 | 27,209 | 403 | 1.50% |
| 1930 | 26,806 | 348 | 1.32% |
| 1920 | 26,458 | 1,210 | 4.79% |
| 1910 | 25,248 | 1,911 | 8.19% |
| 1900 | 23,337 | 4,967 | 27.04% |
| 1890 | 18,370 | 12,944 | 238.56% |
| 1880 | 5,426 | 4,850 | 842.01% |
| 1870 | 576 | 566 | 5660.00% |
| 1860 | 10 | 0.00% |
2021 Growth Rate
0.15% (53)
County Website
State
Founded
1851
County Seat
Lat./Long.
2010 Population
33,754
Growth Since 2010
3.58% (1,207)
| Race | Population | Percentage |
|---|---|---|
| White | 32,930 | 94.55% |
| Some Other Race | 813 | 2.33% |
| Two or More Races | 595 | 1.71% |
| Asian | 257 | 0.74% |
| Black or African American | 122 | 0.35% |
| American Indian and Alaska Native | 94 | 0.27% |
| Native Hawaiian and Other Pacific Islander | 16 | 0.05% |
Sioux County, Iowa Population Pyramid $2021
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| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 12,248 | 2.66 | 80.3 |
| Married | 8,168 | 3.2 | 89.7 |
| Non Family | 3,220 | 1.22 | 60.6 |
| Female | 489 | 2.79 | 57.9 |
| Male | 371 | 3.23 | 75.7 |
3.15
Average Family Size
2.66
Average Household Size
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 914 | 4.41% |
| 9th to 12th Grade | 1,108 | 5.35% |
| High School Graduate | 6,254 | 30.18% |
| Some College | 3,710 | 17.90% |
| Associates Degree | 2,709 | 13.07% |
| Bachelors Degree | 4,173 | 20.14% |
| Graduate Degree | 1,857 | 8.96% |
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Sioux County, Iowa Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 18,820 | 17,756 | 5,813 |
| Hispanic | 1,617 | 671 | 47 |
| Other Race | 422 | 202 | |
| 2+ Races | 174 | 74 | 59 |
| Asian | 107 | 107 | 72 |
| Black | 67 | 61 | 30 |
| Native American | 57 | 20 | |
| Islander | 13 | 13 | 13 |
The highest rate of high school graduation is among asian people with a rate of 100.00%.
The highest rate of bachelors degrees is among islander people with a rate of 100.00%.
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$40,253
Average Earnings
$50,104
Average Male
$26,908
Average Female
Sioux County, Iowa Language by Age
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Sioux County, Iowa Language
90.95% of Sioux County, Iowa residents speak only English, while 9.05% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 8.04% of the population.
Sioux County, Iowa Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 28,235 | 1,148 | 4.07% |
| Hispanic | 3,618 | 839 | 23.19% |
| Other | 798 | 183 | 22.93% |
| Multiple | 544 | 40 | 7.35% |
| Asian | 204 | 20 | 9.80% |
6.30%
Overall Poverty Rate
5.06%
Male Poverty Rate
7.53%
Female Poverty Rate
Poverty in Sioux County, Iowa
The race most likely to be in poverty in Sioux County, Iowa is Hispanic, with 23.19% below the poverty level.
The race least likely to be in poverty in Sioux County, Iowa is White, with 4.07% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.54%. Among those working part-time, it was 8.57%, and for those that did not work, the poverty rate was 12.73%.
Sioux County, Iowa Marital Status
Marriage Rates
63.0%
Overall Marriage Rate
62.8%
Male Marriage Rate
63.2%
Female Marriage Rate
Sioux County, Iowa Married by Age and Sex
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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
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| Name | Veterans | % of Total |
|---|---|---|
| White | 1,448 | 5.99% |
| Hispanic | 11 | 0.54% |
| Black | 6 | 6.74% |
Sioux County, Iowa Veterans by Education
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4.66%
Veteran Poverty Rate
25.87%
Veteran Disability Rate
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73.3%
Labor Force Participation
71.2%
Employment Rate
2.7%
Unemployment Rate
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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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67.18%
Born in Sioux County, Iowa
94.09%
Native Born
5.91%
Foreign Born
4.33%
Non Citizen
1.58%
Naturalized
Place of Birth
94.09% of Sioux County, Iowa residents were born in the United States, with 67.18% having been born in Iowa. 4.33% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990