Population 36,212 · Census ACS 2020–24
Choose a measure to map it.Tap a measure to map it. Swipe the row for more. Arrows show the change since 2006–10.
Median age by neighborhoodHistory and comparison ↓︎
Younger residents
Older residents
Colorblind friendly
off
More maps of Sioux County: Best Neighborhoods · Walk Grade · Household income · Home prices · Race · Politics · Traffic noise · Internet
Population and households in Sioux County
Household size in Sioux County
| Period | Sioux County | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 2.75 | 2.44 | 2.68 |
| 2010–14 | 2.72 | 2.45 | 2.73 |
| 2015–19 | 2.66 | 2.43 | 2.71 |
| 2020–24 | 2.69 | 2.43 | 2.65 |
| Change | −0.06 | −0.01 | −0.03 |
Households in Sioux County average 2.69 people, about the same as the country as a whole (2.65). The typical household here is bigger than in Iowa overall, where it has 2.43 people. Since 2006–10, household size has edged down from 2.75, as it has nationally. Only two of Iowa's 99 counties have larger households.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Sioux County
| Period | Sioux County | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 33.8 | 38.8 | 37.7 |
| 2010–14 | 34.2 | 39.3 | 38.6 |
| 2015–19 | 34.6 | 39.7 | 39.6 |
| 2020–24 | 34.4 | 39.8 | 40.1 |
| Change | +0.6 | +1.0 | +2.3 |
Sioux County is young: half of its residents are under 34.4, compared with a national median of 40.1. The population tilts toward young adults and children. The median age has crept up from 33.8 in 2006–10, a smaller shift than nationally. Only one other Iowa county is younger.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Sioux County
| Period | Sioux County | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 5.1% | 9.5% | 12.3% |
| 2010–14 | 8.1% | 9.9% | 12.3% |
| 2015–19 | 6.1% | 10.0% | 11.6% |
| 2020–24 | 6.0% | 10.0% | 11.6% |
| Change | +0.9 pts | +0.6 pts | −0.6 pts |
Single parents head only 6.0% of households in Sioux County, well below the national share of 11.6%. The single-parent share has edged up 0.9 points since 2006–10, even as the national share fell. Only five of Iowa's 99 counties have a lower share of single-parent households.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Sioux County
Renters in Sioux County
| Period | Sioux County | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 18.7% | 26.8% | 33.3% |
| 2010–14 | 21.7% | 28.2% | 35.6% |
| 2015–19 | 19.7% | 28.9% | 36.0% |
| 2020–24 | 23.9% | 28.3% | 34.8% |
| Change | +5.2 pts | +1.5 pts | +1.5 pts |
Only 23.9% of households in Sioux County rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. More than four in ten owners (45.6%) have paid off their mortgages, above the national share of 39.8%. Rentals cluster in the northwest; owners are most common in the northeast. The renter share has risen 5.2 points since 2006–10, a much bigger shift than nationally.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Sioux County
| Period | Sioux County | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 5.5% | 8.7% | 11.4% |
| 2010–14 | 5.7% | 8.6% | 11.4% |
| 2015–19 | 6.4% | 9.4% | 11.1% |
| 2020–24 | 5.1% | 8.8% | 9.6% |
| Change | −0.4 pts | +0.1 pts | −1.8 pts |
Empty homes are scarce in Sioux County: just 5.1% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Sioux County has the lowest vacancy rate of any Iowa county.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Sioux County
| Period | Sioux County | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 1964 | 1965 | 1974 |
| 2010–14 | 1968 | 1967 | 1975 |
| 2015–19 | 1971 | 1969 | 1977 |
| 2020–24 | 1973 | 1971 | 1980 |
| Change | +9 | +6 | +6 |
Homes in Sioux County run older than the national norm, with a median build year of 1973 against 1980. The median year built has moved up from 1964 in 2006–10, a sign of steady new building. Newer construction is concentrated in the southeast, while the northeast has the oldest housing.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Sioux County
| Period | Sioux County | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | $561 | $669 | $965 |
| 2010–14 | $648 | $732 | $1,040 |
| 2015–19 | $714 | $821 | $1,213 |
| 2020–24 | $904 | $1,020 | $1,571 |
| Change | +$343 | +$351 | +$606 |
The median renter in Sioux County pays $904 a month for rent and utilities, well below the national median of $1,571. Rent has climbed $343 a month since 2006–10, up 61%, roughly in step with the nation. The typical renter here spends 24.8% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Renters on a budget will find the lowest rents in the east; the highest are in the northwest.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Sioux County
Bachelor's degrees in Sioux County
| Period | Sioux County | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 23.3% | 26.5% | 28.4% |
| 2010–14 | 25.8% | 27.9% | 29.6% |
| 2015–19 | 30.5% | 29.3% | 32.1% |
| 2020–24 | 31.4% | 32.3% | 35.6% |
| Change | +8.1 pts | +5.8 pts | +7.2 pts |
College degrees are a little less common in Sioux County than nationally: 31.4% of adults 25 and older have a bachelor's or higher, against 35.6%. Since 2006–10, the share with a degree has risen 8.1 points, mirroring the country. College graduates are most concentrated in the southeast and least in the northwest.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Sioux County
| Period | Sioux County | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 86.9% | 90.4% | 84.9% |
| 2010–14 | 88.8% | 91.4% | 86.1% |
| 2015–19 | 90.8% | 92.1% | 87.7% |
| 2020–24 | 91.4% | 93.0% | 89.3% |
| Change | +4.6 pts | +2.7 pts | +4.3 pts |
High school completion in Sioux County is a bit above the national rate: 91.4% of adults have a diploma or equivalent, against 89.3%. Still, the rate is lower than in Iowa as a whole (93.0%). The share with a diploma has risen 4.6 points since 2006–10, as it has nationally.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Sioux County
| Period | Sioux County | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 2.5% | 5.2% | 8.1% |
| 2010–14 | 1.8% | 5.4% | 9.4% |
| 2015–19 | 2.4% | 3.7% | 5.6% |
| 2020–24 | 1.4% | 3.7% | 5.4% |
| Change | −1.1 pts | −1.5 pts | −2.7 pts |
The job market in Sioux County has been strong: just 1.4% of the labor force was out of work and looking, well below the national rate of 5.4%. Few Iowa counties have lower unemployment: only three of 99. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Sioux County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Sioux County | 2.69 | 34.4 | 6.0% | 23.9% | 5.1% | 1973 | $904 | 31.4% | 91.4% | 1.4% |
| O'Brien County | 2.39 | 41.4 | 6.6% | 23.9% | 10.9% | 1961 | $789 | 22.2% | 90.3% | 1.1% |
| Clay County | 2.25 | 43.2 | 6.1% | 26.7% | 11.4% | 1963 | $800 | 27.3% | 93.2% | 3.5% |
| Yankton County | 2.25 | 42.8 | 8.4% | 27.3% | 9.7% | 1978 | $808 | 32.2% | 93.6% | 1.4% |
| Palo Alto County | 2.27 | 42.0 | 8.1% | 22.9% | 16.7% | 1957 | $690 | 19.3% | 93.6% | 2.3% |
| Bon Homme County | 2.24 | 42.3 | 5.4% | 19.5% | 15.1% | 1959 | $690 | 20.1% | 91.2% | 2.3% |
| Kossuth County | 2.22 | 45.3 | 6.2% | 21.4% | 9.7% | 1961 | $1,063 | 23.4% | 95.3% | 2.1% |
| Charles Mix County | 2.97 | 36.5 | 11.1% | 27.7% | 16.2% | 1971 | $766 | 26.1% | 91.2% | 6.1% |
| Hancock County | 2.26 | 45.9 | 8.8% | 17.5% | 8.8% | 1960 | $795 | 20.4% | 91.4% | 1.9% |
| Cerro Gordo County | 2.15 | 45.9 | 9.4% | 29.6% | 14.9% | 1962 | $894 | 25.2% | 94.9% | 2.9% |
| Gregory County | 2.45 | 44.8 | 4.9% | 23.3% | 26.3% | 1964 | $587 | 22.5% | 92.5% | 2.4% |
All figures 2020–24.
Counties with similar populations: Gilmer County, GA · Washington Parish, LA · Wayne County, GA · Weakley County, TN · Webster County, IA · Webster County, MO · Webster Parish, LA · Wells County, IN · Gloucester County, VA · Washington County, TX
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Sioux County. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
No other site shows detail at this level for free. We are able to keep this site free by receiving a small commission from the referring links on this page. Please share or cite this page if you aren’t able to otherwise support our work.