Counties in Arizona by households, 2024

Maricopa County had the highest households of 15 counties in 2024, at 1.73 million. Greenlee County had the lowest, at 3,591. The median was 50,982 and the figure for Arizona was 2.86 million. Source: the U.S. Census Bureau.

Highest1,730,696Maricopa County

Lowest3,591Greenlee County

Median50,98215 counties

Arizona2,856,081History

Map of counties, 2024

Under 20K
20K to 30K
30K to 60K
60K to 120K
120K and over

count, 2024. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

count. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Retrieved 2026-10-12.

Full ranking

Rank	Counties	2024 count	Change on 2023
1	Maricopa County	1,730,696	+2%
2	Pima County	437,827	+1.6%
3	Pinal County	161,917	+3%
4	Yavapai County	111,157	+2.1%
5	Mohave County	101,973	+5.2%
6	Yuma County	79,341	+3.2%
7	Coconino County	55,118	+2.8%
8	Cochise County	50,982	+1%
9	Navajo County	40,063	+2.3%
10	Gila County	23,645	+1.7%
11	Apache County	21,100	+3.2%
12	Santa Cruz County	16,966	+0.9%
13	Graham County	12,746	+2.3%
14	La Paz County	8,959	+0.8%
15	Greenlee County	3,591	+4.3%

Other periods

2024
2023
2022
2021

About this ranking

Number of households, which equals the number of occupied housing units. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

People living in group quarters, such as college dormitories, nursing homes and prisons, are not in households.

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 B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.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 B25003: occupied housing units (households) (Counties in Arizona by households, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat

MLA 9

American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Arizona by households, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Invokely, https://invokely.ai/rankings/households/arizona-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25003: occupied housing units (households). Counties in Arizona by households, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Also distributed by Invokely, https://invokely.ai/rankings/households/arizona-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Arizona by households, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat, via Invokely: https://invokely.ai/rankings/households/arizona-counties (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_arizona_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25003: occupied housing units (households): Counties in Arizona by households, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/households/arizona-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25003: occupied housing units (households): Counties in Arizona by households, 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-b25003.dat
L2  - https://invokely.ai/rankings/households/arizona-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/households/arizona-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest households?

Maricopa County, with 1.73 million in 2024, according to the U.S. Census Bureau.

Which county has the lowest households?

Greenlee County, with 3,591 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 B25003: occupied housing units (households). Retrieved 2026-10-12.