COUNTY · 1990 CENSUS

Sioux County

Iowa · 29,903 residents · 767.911 sq mi

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The short version

Sioux County has lower-than-average household income, with a median household income of $25,692. Population has declined 5% since 2000. Median home value is $45,000.

At a glance

Lower income

below the US median

US median: $30,130

Younger

median age 31.1

US median: 33.0

Less educated

14% hold a bachelor's degree

US average: 20%

More affordable

home values down 31%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

29,903

−5%vs 2000

vs 31,589 in 2000

1990 – 2025

Population density

39 / sq mi

−5%vs 2000

vs 41 / sq mi in 2000

US average: 221

Median age

31.1

−5%vs 2000

vs 32.8 in 2000

US average: 33.0

Population, 1990 – 2024

202436K

Section 02

Income & economy

Median household income

$25,692

−16%inflation adjusted, since 2000

vs $40,536 in 2000

US average: $30,130

1990 – 2024

Per capita income

$10,411

−37%vs 2000

vs $16,532 in 2000

US average: $14,340

Poverty rate

8.1%

+1.6 ptsvs 2000

vs 6.4% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$45,000

−31%inflation adjusted, since 2000

vs $85,400 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$268

−8%inflation adjusted, since 2000

vs $385 in 2000

US average: $450

Owner-occupied

78.2%

−2.2 ptsvs 2000

vs 80.5% in 2000

21.8% rent

Afford Score

1.8

−17%vs 2000

vs 2.1 in 2000

1990 – 2024

RELATED:See current rent listings in Sioux County on RentDataNow

Section 04

Race & ethnicity

2000

White, non-Hispanic96.2%(30,374)

Black0.2%(57)

Hispanic / Latino2.6%(808)

Asian0.6%(185)

Other0%

Diversity Score8.1%(2,567)

1990

White, non-Hispanic99%(29,616)

Black0.1%(22)

Hispanic / Latino0.4%(108)

Asian0.6%(177)

Other0.3%(88)

Diversity Score3.3%(975)

Diversity Score

−60%vs 2000

vs 8 in 2000

1990 – 2024

Section 05

Education

Bachelor's degree or higher

14.4%

−5.3 ptsvs 2000

vs 19.8% in 2000

US average: 20.3%

High school or higher

71.7%

−8.6 ptsvs 2000

vs 80.4% in 2000

US average: 75.2%

Graduate degree

5.0%

−1.4 ptsvs 2000

vs 6.4% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

24.0 min

+126%vs 2000

vs 10.6 min in 2000

US average: 21.9

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to Sioux County

Head to head

Compare Sioux County to nearby counties

SIOUX COUNTY VS

Lyon County

Income$76,746+199%

Home value$230,000+411%

Population12,354−66%

SEE FULL COMPARISON →

SIOUX COUNTY VS

Plymouth County

Income$83,251+224%

Home value$228,900+409%

Population25,697−30%

SEE FULL COMPARISON →

SIOUX COUNTY VS

O'Brien County

Income$68,356+166%

Home value$173,100+285%

Population14,220−61%

SEE FULL COMPARISON →

SIOUX COUNTY VS

Union County

Income$89,636+249%

Home value$301,100+569%

Population17,402−53%

SEE FULL COMPARISON →

Frequently asked

How many people live in Sioux County, Iowa?

Sioux County, Iowa has about 29,903 residents according to the 1990 Census.

What is the median household income in Sioux County, Iowa?

The typical household in Sioux County, Iowa earns about $25,692 a year. Half of households make more than that, and half make less.

Is Sioux County, Iowa expensive?

In Sioux County, Iowa, the median home is worth about $45,000, and the typical rent is about $268 a month.

How educated are people in Sioux County, Iowa?

About 14.4% of adults age 25 and over in Sioux County, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Sioux County, Iowa?

About 8.1% of people in Sioux County, Iowa live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →