Data / Median age / Sioux County

Median age in Sioux County

Median age in Sioux County was 28.2 years in 2024, according to the U.S. Census Bureau. That is down 0.5 from 2023. That is the 53rd highest of 53 counties in 2024.

2024, years28.2
Change on 2023-0.5
Rank53rd of 53Counties in North Dakota ranked
Series high28.72023
Series low27.12021

Median age in Sioux County, 2021 to 2024

CSVChart (SVG)

2727.52828.52920212022202320242021: 27.1 years2022: 27.1 years2023: 28.7 years2024: 28.2 years
years. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-01-29.
All 4 values
Periodyears
202428.2
202328.7
202227.1
202127.1

Compared with North Dakota and United States

Place2024
Sioux County28.2
North Dakota35.9
United States38.9

Rankings

Definition

Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat. Retrieved 2026-10-08.

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Questions

What is the median age in Sioux County?

Median age in Sioux County was 28.2 years in 2024, according to the U.S. Census Bureau. That is down 0.5 from 2023. That is the 53rd highest of 53 counties in 2024.

Where does this figure come from?

U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. Retrieved by Invokely on 2026-10-08.

What was the highest median age in Sioux County?

28.7 years in 2023, the highest value since 2021 in this series.

More statistics for Sioux County

All statistics for Sioux County