Counties in North Dakota by average household size, 2024

Sioux County had the highest average household size of 53 counties in 2024, at 3.3 persons per household. Eddy County had the lowest, at 1.9 persons per household. The median was 2.2 persons per household and the figure for North Dakota was 2.3 persons per household. Source: the U.S. Census Bureau.

Highest3.3Sioux County

Lowest1.9Eddy County

Median2.253 counties

North Dakota2.3History

Map of counties, 2024

Under 2.1
2.1 to 2.2
2.2 to 2.3
2.3 to 2.4
2.4 and over

persons per household, 2024. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

persons per household. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2024 persons per household	Change on 2023
1	Sioux County	3.3	-6%
2	Rolette County	3.1	-3.1%
3	Benson County	2.9	-5.9%
4	Williams County	2.6	+1.6%
5	Oliver County	2.5	+1.2%
6	Dunn County	2.5	-3.5%
7	Billings County	2.5	-1.2%
8	Mountrail County	2.4	-2.4%
8	Stark County	2.4	-1.6%
10	Burke County	2.4	+2.6%
11	Morton County	2.4	-2.5%
12	Ward County	2.4	-1.3%
13	Burleigh County	2.3	-0.8%
13	McKenzie County	2.3	-1.3%
15	Golden Valley County	2.3	-6%
15	Renville County	2.3	-3.7%
17	Dickey County	2.3	-2.5%
18	Bottineau County	2.3	+0.9%
18	McHenry County	2.3	0%
20	Cavalier County	2.3	-1.7%
20	Mercer County	2.3	+0.4%
20	Walsh County	2.3	+0.4%
23	Ransom County	2.3	-2.2%
24	LaMoure County	2.3	-2.2%
25	Logan County	2.3	-1.7%
26	Steele County	2.2	-5.5%
26	Traill County	2.2	-1.3%
28	Cass County	2.2	-0.4%
29	Bowman County	2.2	-4.7%
29	Richland County	2.2	-1.3%
31	McLean County	2.2	-2.7%
31	Pembina County	2.2	-1.3%
33	Grand Forks County	2.2	-0.9%
33	Griggs County	2.2	-8.8%
35	Nelson County	2.2	-3.6%
36	Sargent County	2.1	-1.8%
37	Foster County	2.1	-1.4%
38	Wells County	2.1	0%
39	Stutsman County	2.1	-1.4%
40	Emmons County	2.1	-1.4%
40	Grant County	2.1	+0.5%
42	Towner County	2.1	-4.6%
43	Barnes County	2.1	-1.4%
43	Divide County	2.1	-8%
45	Slope County	2.1	-12.4%
46	Hettinger County	2	-2.4%
46	Pierce County	2	-1.4%
46	Ramsey County	2	-4.7%
49	Kidder County	2	-3.3%
50	Adams County	2	-2.4%
51	McIntosh County	2	-1%
52	Sheridan County	1.9	-2.6%
53	Eddy County	1.9	-3.1%

Other periods

2024
2023
2022
2021

About this ranking

Average number of persons per private household. EU countries: EU-SILC. United States: American Community Survey five-year estimate of people in households divided by occupied housing units, where the period shown is the last year of the five-year span.

Covers private households only; people living in institutions or other group quarters are excluded. EU-SILC figures refer to the survey year. The EU and US surveys differ, so their figures are not strictly comparable.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B25010: average household size of occupied housing units (Counties in North Dakota by average household size, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat

MLA 9

American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, Counties in North Dakota by average household size, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Invokely, https://invokely.ai/rankings/average-household-size/north-dakota-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. Counties in North Dakota by average household size, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Also distributed by Invokely, https://invokely.ai/rankings/average-household-size/north-dakota-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, Counties in North Dakota by average household size, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat, via Invokely: https://invokely.ai/rankings/average-household-size/north-dakota-counties (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_north_dakota_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25010: average household size of occupied housing units: Counties in North Dakota by average household size, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/average-household-size/north-dakota-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25010: average household size of occupied housing units: Counties in North Dakota by average household size, 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat
L2  - https://invokely.ai/rankings/average-household-size/north-dakota-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-household-size/north-dakota-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest average household size?

Sioux County, with 3.3 persons per household in 2024, according to the U.S. Census Bureau.

Which county has the lowest average household size?

Eddy County, with 1.9 persons per household in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. Retrieved 2026-10-12.