Data / Rankings / Median age / Counties in Arizona

Counties in Arizona by median age

La Paz County had the highest median age of 15 counties in 2021, at 57.1 years. Coconino County had the lowest, at 31.5 years. The median was 38.3 years and the figure for Arizona was 38.1 years. Source: the U.S. Census Bureau.

Highest57.1La Paz County
Lowest31.5Coconino County
Median38.315 counties
Arizona38.1History

All counties, 2021

CSVChart (SVG)

La Paz CountyLa Paz County: 57.1 years57.1Yavapai CountyYavapai County: 54.2 years54.2Mohave CountyMohave County: 52.3 years52.3Gila CountyGila County: 50.3 years50.3Cochise CountyCochise County: 41.2 years41.2Pinal CountyPinal County: 39.8 years39.8Pima CountyPima County: 38.9 years38.9Navajo CountyNavajo County: 38.3 years38.3Santa Cruz CountySanta Cruz County: 37.2 years37.2Maricopa CountyMaricopa County: 36.9 years36.9Greenlee CountyGreenlee County: 35.9 years35.9Apache CountyApache County: 35.5 years35.5Yuma CountyYuma County: 34.8 years34.8Graham CountyGraham County: 33.8 years33.8Coconino CountyCoconino County: 31.5 years31.5
years. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2021
years
1La Paz County57.1
2Yavapai County54.2
3Mohave County52.3
4Gila County50.3
5Cochise County41.2
6Pinal County39.8
7Pima County38.9
8Navajo County38.3
9Santa Cruz County37.2
10Maricopa County36.9
11Greenlee County35.9
12Apache County35.5
13Yuma County34.8
14Graham County33.8
15Coconino County31.5

Other periods

About this ranking

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.

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 B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b01002.dat. Retrieved 2026-10-08.

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Questions

Which county has the highest median age?

La Paz County, with 57.1 years in 2021, according to the U.S. Census Bureau.

Which county has the lowest median age?

Coconino County, with 31.5 years in 2021.

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 B01002: median age, total population. Retrieved 2026-10-08.

Median age: other rankings

Counties in Arizona: more rankings