Sioux County, ND demographics:
population, income, and more

Total population
3,740
-1.3% year-over-year change
Median household income
$42,083/yr
1.0% year-over-year change
Housing units
1,280
0.3% year-over-year change

Sioux County population

How many people live in Sioux County

Sioux County is home to 3,740 residents, according to the most recent Census data. Gender-wise, 49.8% of Sioux County locals are male, and 50.2% are female.

Total population
3,740
-1.3% year-over-year change
Gender ratio
Male
49.8%
1,862
Female
50.2%
1,878
Value Percent YoY change
Male 1,862 49.8% -1.6%
Female 1,878 50.2% -1.0%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Sioux County is 28, with the population distributed as follows: about 28% are children under 15, then 19.6% are in the 15 to 24 age group. Adults between 25 and 44 make up 20.1% of the population, while another 22.7% fall into the 45 to 64 bracket. Finally, around 9.6% are 65 or older.

Median age
28.2
Age breakdown
Under 15
28%
15 to 24
19.6%
25 to 44
20.1%
45 to 64
22.7%
Over 65
9.6%
Value Percent YoY change
Under 15 1,046 28% -2.9%
15 to 24 732 19.6% 13.7%
25 to 44 752 20.1% -10.2%
45 to 64 850 22.7% -3.6%
Over 65 360 9.6% 3.1%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

At the same time, 0.7% of residents are non-citizens. As for race, 12.4% of locals are Caucasian, 0.4% are African American and 0.7% have Asian roots. There’s also a share of 2.5% that includes residents with two or more races.

Citizenship
U.S.-born citizens
99.2%
Non-U.S.-born citizens
0%
Non-citizens
0.7%
Value Percent YoY change
U.S.-born citizens 3,712 99.2% -1.9%
Non-U.S.-born citizens 2 0% -60.0%
Non-citizens 26 0.7% 1,200.0%
Racial breakdown
White
12.4%
Black or African American
0.4%
American Indian and Alaska Native
82.8%
Asian
0.7%
Native Hawaiian and other Pacific Islander
0%
Two or more races
2.5%
Other
1.2%
Value Percent
White 465 12.4%
Black or African American 14 0.4%
American Indian and Alaska Native 3,098 82.8%
Asian 25 0.7%
Two or more races 95 2.5%
Other 43 1.2%

Households in Sioux County

A peek inside Sioux County households

Sioux County has 1,112 households, with an average of 3 members in each. Of these, 69.5% are families, while the remaining 30.5% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,112
4.2% year-over-year change
Average people per household
3
Non-family households
339
Family households
773
Value Percent YoY change
Non-family households 339 30.5% 5.6%
Family households 773 69.5% 3.6%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Sioux County

The housing landscape of Sioux County

Sioux County's housing consists of 1,280 units, with 78.6% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2.1% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 12% of the housing landscape.

Housing units
1,280
0.3% year-over-year change
Housing types
Value Percent
1 unit, detached 1,006 78.6%
1 unit, attached 27 2.1%
2 units 39 3%
3 or 4 units 33 2.6%
5 to 9 units 2 0.2%
10 to 19 units 5 0.4%
20 to 49 units 2 0.2%
50 or more units 12 0.9%
Mobile home 154 12%
Homes built since 2020
8
100.0% year-over-year change

The age of buildings in Sioux County

In Sioux County, the median construction year is 1984. About 4.8% of homes were built before the 1940s, with another 3.4% going up by 1949. Most development happened in the second half of the 20th century. Then, 19.6% of homes were added from 2000 to 2009, 4.4% between 2010 and 2019, and 0.6% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 62 4.8% -22.5%
Built between 1940 and 1949 43 3.4% -23.2%
Built between 1950 and 1959 61 4.8% 17.3%
Built between 1960 and 1969 107 8.4% 0.9%
Built between 1970 and 1979 291 22.7% -5.5%
Built between 1980 and 1989 175 13.7% -5.9%
Built between 1990 and 1999 226 17.7% 7.1%
Built between 2000 and 2009 251 19.6% 17.3%
Built between 2010 and 2019 56 4.4% -5.1%
Built in 2020 or later 8 0.6% 100.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Sioux County occupancy rates

Out of the 1,112 occupied housing units in Sioux County, 46.6% are owner-occupied, while 53.4% are lived in by tenants. Meanwhile, 13.1% of all homes on the local market sit vacant.

Occupied housing units
1,112
4.2% year-over-year change
Occupancy breakdown
Renter occupied
594
Owner occupied
518
Value Percent YoY
change
Renter occupied 594 53.4% 3.1%
Owner occupied 518 46.6% 5.5%
Unoccupied housing units
13.1%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Sioux County housing costs

Housing costs in Sioux County come to a median of $442 per month, while tenants specifically pay a median gross rent of $444.

Median housing costs per month
$442/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Sioux County
$444/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Sioux County

Sioux County education at a glance

About 40.9% of the population in Sioux County went to high school, while 28.9% pursued college studies. Another 15.2% earned an associate degree and 8.6% hold a bachelor’s. Meanwhile, 4.5% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 47 1.9% -24.2%
High school diploma 1,010 40.9% -13.7%
College diploma 713 28.9% 4.5%
Associate degree 375 15.2% 13.3%
Bachelor's degree 211 8.6% 25.6%
Graduate degree 111 4.5% 70.8%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Sioux County

How much people earn in Sioux County

The average annual household income in Sioux County was $65,479 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +1.6% change from the previous year. At the same time, the median income stood at $42,083, reflecting a +1% shift over the same period.

Average household income in Sioux County
$65,479/year
1.6% year-over-year change
Median household income in Sioux County
$42,083/year
1.0% year-over-year change

Sioux County income by age

In Sioux County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $58,942. Those with someone between 45 and 64 in charge, often well established professionally, earn $41,801 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $28,750, while those led by someone over 65, many of whom may be retired, have about $40,156 in earnings. Overall, 57% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $28,750 N/A
25 - 44 $58,942 34.7%
45 - 64 $41,801 1.5%
Over 65 $40,156 -15.0%
Above poverty level
2,042
Below poverty level
1,542
Value Percent YoY
change
Above poverty level 2,042 57% -3.1%
Below poverty level 1,542 43% -1.2%

Employment in Sioux County

Workforce and job types in Sioux County

The job market in Sioux County is powered by 1,151 working residents, spread across a range of industries and roles. 80.1% of the working population are employed in professional or administrative positions, while 19.9% are in hands-on or service-based jobs. Also, 13.2% run their own businesses, 34.7% are employed by private companies, and 45.4% work in the public sector.

Workforce demographics

Working population
1,151
8.6% year-over-year change
White collar
922
Blue collar
229
Value Percent YoY change
White collar 922 80.1% 9.2%
Blue collar 229 19.9% 6.0%
Employer type
Self employees
13.2%
Private companies
34.7%
Governmental workers
45.4%
Not for profit companies
6.7%
Value Percent YoY change
Self employees 152 13.2% -15.1%
Private companies 399 34.7% 20.9%
Governmental workers 523 45.4% 7.0%
Not for profit companies 77 6.7% 24.2%
Unemployment rate
17.0%
-18.9% year-over-year change

Available workforce

The unemployment rate in Sioux County stands at 17%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Sioux County

How people get around in Sioux County

Commuting methods vary: 81% of residents travel by personal vehicle and 9% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 921 81% 4.7%
Bus or trolleybus 16 1.4% 166.7%
Walk 102 9% 79.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Sioux County by zipcode?

Zipcode Population Number of households Median income Average income
58528 677 168 $33,333 $62,684
58538 2,171 667 $34,858 $53,782
58568 544 166 $58,636 $79,408
58570 437 132 $110,938 $108,842
57641 215 104 $83,750 $112,393
57645 184 78 $56,667 $85,676

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FAQs about Sioux County demographics 

What is the total population of Sioux County?

Sioux County has a total population of 3,740 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -1.3% compared to a year ago.

What is the gender ratio in Sioux County?

The gender ratio in Sioux County is as follows:
  • 49.8% males (1,862 residents)
  • 50.2% females (1,878 residents)

What is the median age in Sioux County?

The median age in Sioux County is 28.2.

What is the age distribution of the population in Sioux County?

The age distribution in Sioux County is as follows:
  • Under 15: 28% (1,046 residents)
  • Ages 15-24: 19.6% (732 residents)
  • Ages 25-44: 20.1% (752 residents)
  • Ages 45-64: 22.7% (850 residents)
  • Over 65: 9.6% (360 residents)

What is the racial and ethnic makeup of Sioux County?

The racial and ethnic makeup of Sioux County is as follows:
  • White: 12.4% (465 residents)
  • Black or African American: 0.4% (14 residents)
  • American Indian and Alaska Native: 82.8% (3,098 residents)
  • Asian: 0.7% (25 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 2.5% (95 residents)
  • Other: 1.2% (43 residents)

What percentage of the population in Sioux County are U.S.-born citizens?

U.S.-born citizens represent 99.2% of the population in Sioux County.

How many housing units are there in Sioux County?

There are 1,280 housing units in Sioux County, reflecting a +0.3% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Sioux County and what is the average household size?

Sioux County has a total of 1,112 households, with an average of 3 people in each.

What is the median household income in Sioux County?

Sioux County has a median household income of $42,083, representing a +1.0% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Sioux County?

The employment rate is 83% in Sioux County, with a workforce of 1,151 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 80.1% (922 residents)
  • Blue-collar workers: 19.9% (229 residents)

Places of employment:
  • Self-employed: 13.2% (152 residents)
  • Private companies: 34.7% (399 residents)
  • Governmental workers: 45.4% (523 residents)
  • Not-for-profit companies: 6.7% (77 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025