Data / Rankings / Population aged 65 and over / Counties in Arizona

Counties in Arizona by share of population aged 65 and over

Yavapai County had the highest share of population aged 65 and over of 15 counties in 2020, at 34%. Greenlee County had the lowest, at 12.6%. The median was 20% and the figure for Arizona was 18.7%. Source: the U.S. Census Bureau.

Highest34Yavapai County
Lowest12.6Greenlee County
Median2015 counties
Arizona18.7History

All counties, 2020

CSVChart (SVG)

Yavapai CountyYavapai County: 34 %34La Paz CountyLa Paz County: 33.8 %33.8Mohave CountyMohave County: 31.1 %31.1Gila CountyGila County: 29.9 %29.9Cochise CountyCochise County: 24.2 %24.2Pima CountyPima County: 21.9 %21.9Pinal CountyPinal County: 21.5 %21.5Santa Cruz CountySanta Cruz County: 20 %20Navajo CountyNavajo County: 19.8 %19.8Yuma CountyYuma County: 18.5 %18.5Apache CountyApache County: 17.8 %17.8Maricopa CountyMaricopa County: 16.1 %16.1Graham CountyGraham County: 14.5 %14.5Coconino CountyCoconino County: 13.9 %13.9Greenlee CountyGreenlee County: 12.6 %12.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2020 (%)
1Yavapai County34
2La Paz County33.8
3Mohave County31.1
4Gila County29.9
5Cochise County24.2
6Pima County21.9
7Pinal County21.5
8Santa Cruz County20
9Navajo County19.8
10Yuma County18.5
11Apache County17.8
12Maricopa County16.1
13Graham County14.5
14Coconino County13.9
15Greenlee County12.6

Other periods

About this ranking

Residents aged 65 or over as a percentage of total population. Spain: 1 January, INE annual census. United States: 1 July, Census Bureau population estimates. World Bank figures for other countries and the World refer to mid-year.

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. Population Estimates Program, county population by age and sex (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/asrh/cc-est2025-agesex-all.csv. Retrieved 2026-10-09.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Arizona by share of population aged 65 and over using official data, and cite the source.
rank_places {"indicator":"population_65_plus_share","level":"province","within":"Arizona","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_65_plus_share&level=province&within=Arizona&limit=10

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Questions

Which county has the highest share of population aged 65 and over?

Yavapai County, with 34% in 2020, according to the U.S. Census Bureau.

Which county has the lowest share of population aged 65 and over?

Greenlee County, with 12.6% in 2020.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. Retrieved 2026-10-09.

Population aged 65 and over: other rankings

Counties in Arizona: more rankings