As of the third quarter of 2025, the median home value in Sioux County was $158,088. As of the 2024
American Community Survey, there are 490 estimated households in Sioux County with an average of 2.39 persons per household. The county has a median household income of $53,929. Approximately 14.9% of the county's population lives at or below the
poverty line. Sioux County has an estimated % employment rate, with 22.4% of the population holding a bachelor's degree or higher and 94.4% holding a high school diploma. The
population density was . There were 705 housing units at an average density of . The racial makeup of the county was 93.83%
White, 0.00%
African American, 0.18%
Native American, 0.35%
Asian, 0.18%
Pacific Islander, 1.59% from some other races and 3.88% from two or more races.
Hispanic or Latino people of any race were 3.79% of the population. The median age was 47.9 years. 20.3% of residents were under the age of 18 and 26.3% of residents were 65 years of age or older. For every 100 females there were 106.4 males, and for every 100 females age 18 and over there were 101.1 males age 18 and over. 0.0% of residents lived in urban areas, while 100.0% lived in rural areas. There were 515 households in the county, of which 24.9% had children under the age of 18 living with them and 17.5% had a female householder with no spouse or partner present. About 28.7% of all households were made up of individuals and 14.7% had someone living alone who was 65 years of age or older. There were 705 housing units, of which 27.0% were vacant. Among occupied housing units, 71.1% were owner-occupied and 28.9% were renter-occupied. The homeowner vacancy rate was 1.1% and the rental vacancy rate was 12.1%.
2010 census As of the
2010 census, there were 1,311 people, 577 households, and 409 families residing in the county. The population density was . There were 815 housing units at an average density of . The racial makeup of the county was 96.11%
White, 0.08%
African American, 0.15%
Native American, 0.08%
Asian, 0.00%
Pacific Islander, 2.44% from some other races and 1.14% from two or more races.
Hispanic or Latino people of any race were 3.97% of the population.
2000 census As of the
2000 census, there were 1,475 people, 605 households, and 444 families residing in the county. The population density was . There were 780 housing units at an average density of . The racial makeup of the county was 97.63%
White, 0.00%
African American, 0.14%
Native American, 0.20%
Asian, 0.00%
Pacific Islander, 1.15% from some other races and 0.88% from two or more races.
Hispanic or Latino people of any race were 2.31% of the population. 36.9% were of
German, 11.3%
Irish, 11.0%
American and 10.6%
English ancestry. There were 605 households, out of which 28.10% had children under the age of 18 living with them, 65.30% were
married couples living together, 5.10% had a female householder with no husband present, and 26.60% were non-families. 23.60% of all households were made up of individuals, and 9.40% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 2.86. The county population contained 24.30% under the age of 18, 7.20% from 18 to 24, 24.70% from 25 to 44, 27.50% from 45 to 64, and 16.20% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 111.00 males. For every 100 females age 18 and over, there were 102.20 males. The median income for a household in the county was $29,851, and the median income for a family was $31,406. Males had a median income of $23,409 versus $21,490 for females. The
per capita income for the county was $15,999. About 11.10% of families and 15.40% of the population were below the
poverty line, including 24.40% of those under age 18 and 7.50% of those age 65 or over. ==Communities==