US Census Data

Foster County vs Sioux County

A side-by-side comparison of Foster County and Sioux County: population, income, housing, and more.

Foster County and Sioux County are counties in North Dakota. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Sioux County has the higher population (3,789 vs 3,372 in Foster County). Foster County has the higher median household income ($83,412 vs $41,676 in Sioux County). Foster County has the higher median home value ($162,800 vs $87,400 in Sioux County).

Population, income & housing

Foster CountySioux County
Population3,3723,789
Median age43.3 yrs28.7 yrs
Median household income$83,412$41,676
Median home value$162,800$87,400
Median gross rent$756$466
Housing units1,7821,276
Homeownership rate77.4%46.0%
Bachelor's degree or higher27.2%11.2%
Unemployment rate0.1%21.5%

Trends (ACS 5-year, 2019–2023)

Foster CountySioux County
Population3,260 → 3,372 (+3.4%)4,373 → 3,789 (-13.4%)
Median household income$61,425 → $83,412 (+35.8%)$38,939 → $41,676 (+7.0%)
Median home value$143,500 → $162,800 (+13.4%)$83,800 → $87,400 (+4.3%)
Median gross rent$595 → $756 (+27.1%)$450 → $466 (+3.6%)

Foster County

Population
3,2603,372
Median household income
$61,425$83,412
Median home value
$143,500$162,800
Median gross rent
$595$756

Sioux County

Population
4,3733,789
Median household income
$38,939$41,676
Median home value
$83,800$87,400
Median gross rent
$450$466

Age & race/ethnicity

Age distribution (share)

Foster CountySioux County
Under 55.5%8.3%
5 to 1716.3%26.3%
18 to 244.3%10.8%
25 to 3413.5%11.4%
35 to 4410.7%10.7%
45 to 5411.7%11.9%
55 to 6414.9%11.4%
65 to 7412.4%5.6%
75 and over10.6%3.6%

Race & ethnicity (share)

Foster CountySioux County
White (non-Hispanic)94.0%12.2%
Black or African American0.4%0.2%
American Indian & Alaska Native0.2%83.7%
Asian1.3%0.0%
Native Hawaiian & Pacific Islander0.2%0.0%
Some other race0.4%0.7%
Two or more races2.7%2.2%
Hispanic or Latino0.8%1.0%

Educational attainment (age 25+)

Share of adults 25+

Foster CountySioux County
No high school diploma6.8%13.1%
High school graduate24.6%36.6%
Some college or associate's41.3%39.2%
Bachelor's degree22.7%8.0%
Graduate or professional degree4.5%3.1%

Commute to work

How workers get to work (share)

Foster CountySioux County
Drove alone79.1%70.2%
Carpooled9.2%14.2%
Public transit0.0%0.6%
Walked1.9%5.5%
Bicycle0.1%0.0%
Worked from home7.3%9.3%
Other means2.5%0.3%

Housing

Units in structure (share)

Foster CountySioux County
1-unit, detached82.4%79.3%
1-unit, attached1.2%1.9%
2 to 4 units6.6%5.3%
5 to 19 units6.3%1.1%
20 or more units0.0%0.9%
Mobile home & other3.4%11.6%

Poverty & households

Foster CountySioux County
Poverty rate9.1%42.7%
Average household size2.163.50
Mean commute (minutes)1418
Median year structure built19711982

Full profiles

2

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Foster County vs Sioux County: Compare Population & Demographics | US Census Data