Sioux County, North Dakota Demographics

Population trends, housing costs, income, commuting, and health, all on one page.

Sioux County, ND Population Density Map and Area Scores

Area Score

Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.

F

Health Well below average

Least healthy county in North Dakota
F

Income Well below average

Least wealthy county in North Dakota
F

Education Well below average

Least educated county in North Dakota

Source: Map AI Methodology

Sioux County

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Population density, people per sq mi

Population: density and quick facts

Metric	Sioux County	North Dakota Avg	U.S. Average
Population	3,740	784,730	337,468,954
Population density (per sq mi)	3.3	11.1	86.4
Population growth (%/yr)	-2.07%	0.80%	0.59%
Median age	28.4	36.3	37.3
Households	1,112	331,016	130,235,071

Population in Sioux County declined by 9.7% from 2009 to 2024, reaching 3,740 in 2024.

Population Growth 2009–2024

Year	Sioux County

Race & Ethnicity

Group	Share

Age & Sex

The largest generation in Sioux County is Gen Z, aged 13–28, at 27.2% of residents. That is 3.6 points above North Dakota as a whole.

Gen Z 13–28 1,015 27.2% +3.6 pts
Millennials 29–44 687 18.4% -2.8 pts
Gen X 45–60 652 17.4% -0.2 pts
Boomers 61–79 377 10.1% -5.8 pts

Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below North Dakota, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.

Male and female share

Women are 49.7% of the people living in Sioux County and men 50.3%.

Women 49.7% North Dakota 49.0%
Men 50.3% North Dakota 51.0%

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All ages 18–30 30–45 45–60 60+

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Residents matching this profile

3,740

100% of everyone living in Sioux County

Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.

Economy

Sioux County has a the economy index of F, which means it scores poorly in the economy.

Metric	Sioux County	North Dakota Avg	U.S. Average
Median household income	$42,692	$76,862	$80,455
Income growth (%/yr)	1.05%	3.32%	4.80%
Unemployment rate	17.0%	2.7%	5.2%

The median household income in Sioux County is about 44% lower than in North Dakota.

Detailed wealth and income breakdown →

Housing

Metric	Sioux County	North Dakota Avg	U.S. Average
Median home price	—	$125,877	$248,835
Median rent	$443	$953	$1,407
Homeownership rate	46.6%	62.9%	65.2%

Full housing market analysis →

Commute Time & Mobility

Commuters in Sioux County spend about 24 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 99 hours, about 4.1 full days, spent commuting.

Metric	Sioux County	North Dakota Avg	U.S. Average
One-way commute (min)	11.9	13.8	22.4
Round-trip commute (min)	23.9	27.6	44.8
Yearly time spent (hours)	99	115	187
Estimated yearly cost	$3,083	$3,567	$5,790
Work from home	7.9%	8.1%	15.0%
Highway traffic (vehicles/day)	153	2,106	8,813
Local road traffic (vehicles/day)	107	360	1,355

Fastest commutes among counties in North Dakota: McIntosh County (6.9 min), Foster County (7.7 min), Pierce County (7.7 min).
Slowest: McHenry County (28.9 min), Renville County (23.5 min), Oliver County (22.8 min).

The average commute time in Sioux County is 12 minutes, shorter than the 14 minutes in North Dakota.

Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.

Commute and transport details →

Education & Households

Sioux County has a education index of F, which means it scores poorly in education.

Metric	Sioux County	North Dakota Avg	U.S. Average
Bachelor's degree or higher	9.8%	29.0%	31.6%
Average household size	3.30	2.29	2.53

Highest education index among counties in North Dakota: Cass County (0.3), Burleigh County (0.3), Grand Forks County (0.3).
Lowest: Sioux County (0.2), Sheridan County (0.2), Hettinger County (0.2).

Health

Sioux County has a health index of F, which means it scores poorly in health.

Metric	Sioux County	North Dakota Avg	U.S. Average
Life expectancy (years)	71.4	79.4	78.3
Self-rated poor health	25.7%	14.3%	16.3%
Smokers	35.8%	18.7%	19.0%

Highest health index among counties in North Dakota: Burleigh County (0.8), Steele County (0.8), Cass County (0.8).
Lowest: Sioux County (0.7), Rolette County (0.7), Benson County (0.8).

Full health data →

Sioux County, ND Compared With Nearby Counties

How Sioux County, ND compares with the 1 counties closest to it.

Area	Population	Median household income	Median home price	Commute
Sioux County, ND	3,740	$42,692 #2/2	—	11.9 min #1/2
Morton County, ND	33,777	$79,602	$22,250	17.0 min

Frequently Asked Questions

Common questions about Sioux County, North Dakota.

How many people live in Sioux County, North Dakota?

About 3,740 people live in Sioux County, North Dakota, in 1,112 households of 3.3 people on average. The median age is 28.4, so residents are younger than the U.S. median of 37.3 by about 9 years.

How densely populated is Sioux County, North Dakota?

Averaged over its land area, Sioux County, North Dakota has 3 people per square mile, a density typical of rural areas. That is about 4% of the U.S. average of 86.

Is unemployment high in Sioux County, North Dakota?

Unemployment in Sioux County, North Dakota is 17.0%, well above the U.S. rate of 5.2%, so job seekers may face more competition than elsewhere.

How common is a college degree in Sioux County, North Dakota?

9.8% of adults in Sioux County, North Dakota hold a bachelor's degree or higher (about 1 in 10), well below the U.S. share of 31.6%.

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