Arizona Population by Age

The median age in Arizona is 38.1, as per 2021 ACS 5-Year Estimates. Of the total population, 18.83% were under the age of 15, 20.50% aged 15 to 29, 43.11% aged 30 to 64, 15.69% aged 65 to 84, and 1.88% were 85 years of age and older.
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Updated Sep 17, 2023

Arizona population age distribution

A complete breakdown of Arizona's age demographics from 0 to 85 years, distributed across 18 age groups is listed in the table below.

Age Group Population % of Total Population
Under 5 years 412,606 5.83%
5 to 9 years 440,221 6.22%
10 to 14 years 480,043 6.78%
15 to 19 years 476,470 6.73%
20 to 24 years 477,856 6.75%
25 to 29 years 496,623 7.02%
30 to 34 years 470,047 6.64%
35 to 39 years 452,162 6.39%
40 to 44 years 430,752 6.08%
45 to 49 years 422,175 5.96%
50 to 54 years 416,788 5.89%
55 to 59 years 432,889 6.11%
60 to 64 years 426,712 6.03%
65 to 69 years 393,203 5.55%
70 to 74 years 338,170 4.78%
75 to 79 years 234,252 3.31%
80 to 84 years 145,016 2.05%
85 years and over 133,218 1.88%
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Arizona population by age group

Key stats
2,287,196
Population under 25 years
1,849,584
Population aged 25-44
1,698,564
Population aged 45-64
1,243,859
Population aged 65+

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The graph shows Arizona's population by age group, with age group on x-axis and the respective age group's percent of the total population on y-axis
Arizona population by age group. The largest age group was 25-29 years with a poulation of 496,623 (7.02% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Arizona was for the group of age 25-29 years with a population of 496,623 (7.02%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Arizona was the 85+ years with a population of 133,218 (1.88%).

Arizona population by age cohort

To better understand the age distribution of Arizona's population, we divided it into the following 3 cohorts:

  • Children : Under the age of 18 years
  • Adults (working population): Between the age of 18 and 64 years
  • Seniors: 65 years and above
The pie chart shows Arizona's population divided into segments, with each segment representing an age cohort. The area of each segment is in the same proportion of a circle as the population of the cohort is of the total population.
Arizona population by age cohorts (Children: Under 18 years; Working population: 18-64 years; Senior population: 65 years or more). The largest age group was 18 - 64 years with a poulation of 4,220,909 (59.62% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the population for each of the three cohorts.

Age Group Population % of Total Population
Under 18 years 1,614,435 22.81%
18 to 64 years 4,220,909 59.62%
85 years and over 1,243,859 17.57%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Arizona's population under 18 was 22.81%, compared to the 22.51% nationwide.
  • Arizona's working population (between 18 and 64) was 59.62%, compared to 61.45% nationwide.
  • Arizona's elderly or the senior population (over 65 age) was 17.57% as compared to 16.04% nationwide.

Arizona population pyramid

Population pyramid for Arizona is charted below using the estimates from U.S. Census Bureau's American Community Survey 5-Year estimates. A wide base suggests population increase, narrow base indicates declining birth rates.

Key stats from our analysis of the Arizona's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Arizona, is 29.6.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Arizona, is 27.6.
  • Total dependency ratio for Arizona is 57.2.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Arizona is 3.6.
The graph shows Arizona's population across different age group and gender, with population on x-axis and population y-axis. The male population is plotted on the left in blue color whereas the female population is plotted on the right in pink color.
Arizona population pyramid i.e. Arizona population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Arizona's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 210,607 201,999 412,606
5 to 9 years 224,911 215,310 440,221
10 to 14 years 244,849 235,194 480,043
15 to 19 years 243,259 233,211 476,470
20 to 24 years 248,115 229,741 477,856
25 to 29 years 256,594 240,029 496,623
30 to 34 years 242,974 227,073 470,047
35 to 39 years 231,056 221,106 452,162
40 to 44 years 219,194 211,558 430,752
45 to 49 years 212,042 210,133 422,175
50 to 54 years 207,834 208,954 416,788
55 to 59 years 211,546 221,343 432,889
60 to 64 years 203,976 222,736 426,712
65 to 69 years 183,411 209,792 393,203
70 to 74 years 160,666 177,504 338,170
75 to 79 years 110,441 123,811 234,252
80 to 84 years 68,680 76,336 145,016
85 years and over 53,740 79,478 133,218
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Things to know

What is the population of Arizona under 18?

Arizona's population under the age of 18 is 1,614,435, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 22.81% of the total resident population of Arizona.

What is the aging population in Arizona?

Arizona's population aged 65 years and above was 1,243,859. As per the U.S. Census Bureau's American Community Survey, this population is 17.57% of the entire population.

References

Datasets

Explore datasets by year of publication.
2023
Arizona Age Group Population Dataset: A complete breakdown of Arizona age demographics from 0 to 85 years, distributed across 18 age groups
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Arizona population distribution across 18 age groups. It lists the population in each age group along with the percentage population relative of the total population for Arizona. The dataset can be utilized to understand the population distribution of Arizona by age. For example, using this dataset, we can identify the largest age group in Arizona.

Key observations

The largest age group in Arizona was for the group of age 25-29 years with a population of 496,623 (7.02%), according to the 2021 American Community Survey. At the same time, the smallest age group in Arizona was the 85+ years with a population of 133,218 (1.88%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Arizona population by age group

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age groups:

  • Under 5 years
  • 5 to 9 years
  • 10 to 14 years
  • 15 to 19 years
  • 20 to 24 years
  • 25 to 29 years
  • 30 to 34 years
  • 35 to 39 years
  • 40 to 44 years
  • 45 to 49 years
  • 50 to 54 years
  • 55 to 59 years
  • 60 to 64 years
  • 65 to 69 years
  • 70 to 74 years
  • 75 to 79 years
  • 80 to 84 years
  • 85 years and over

Variables / Data Columns

  • Age Group: This column displays the age group in consideration
  • Population: The population for the specific age group in the Arizona is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Arizona total population. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Arizona Population by Age. You can refer the same here

Arizona Age Cohorts Dataset: Children, Working Adults, and Seniors in Arizona - Population and Percentage Analysis
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Arizona population by age cohorts (Children: Under 18 years; Working population: 18-64 years; Senior population: 65 years or more). It lists the population in each age cohort group along with its percentage relative to the total population of Arizona. The dataset can be utilized to understand the population distribution across children, working population and senior population for dependency ratio, housing requirements, ageing, migration patterns etc.

Key observations

The largest age group was $b3_v1 with a poulation of $b3_v2 ($b3_v3 of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Arizona population by age cohort

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age cohorts:

  • Under 18 years
  • 18 to 64 years
  • 65 years and over

Variables / Data Columns

  • Age Group: This column displays the age cohort for the Arizona population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Arizona is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Arizona is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Arizona Population by Age. You can refer the same here

Arizona Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Arizona population pyramid, which represents the Arizona population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey 5-Year estimates. It lists the male and female population for each age group, along with the total population for those age groups. Higher numbers at the bottom of the table suggest population growth, whereas higher numbers at the top indicate declining birth rates. Furthermore, the dataset can be utilized to understand the youth dependency ratio, old-age dependency ratio, total dependency ratio, and potential support ratio.

Key observations

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Arizona, is 29.6.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Arizona, is 27.6.
  • Total dependency ratio for Arizona is 57.2.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Arizona is 3.6.

Arizona population pyramid

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age groups:

  • Under 5 years
  • 5 to 9 years
  • 10 to 14 years
  • 15 to 19 years
  • 20 to 24 years
  • 25 to 29 years
  • 30 to 34 years
  • 35 to 39 years
  • 40 to 44 years
  • 45 to 49 years
  • 50 to 54 years
  • 55 to 59 years
  • 60 to 64 years
  • 65 to 69 years
  • 70 to 74 years
  • 75 to 79 years
  • 80 to 84 years
  • 85 years and over

Variables / Data Columns

  • Age Group: This column displays the age group for the Arizona population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Arizona for the selected age group is shown in the following column.
  • Population (Female): The female population in the Arizona for the selected age group is shown in the following column.
  • Total Population: The total population of the Arizona for the selected age group is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Arizona Population by Age. You can refer the same here

If you're looking for datasets from another year, please feel free to contact us at research@neilsberg.com and we'll be happy to assist you further.

Explore related topics

Arizona Demographics Arizona Population

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Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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