Maricopa County, AZ Population by Age

The median age in Maricopa County, AZ is 37.1, as per 2018-2022 ACS 5 -Year Estimates. Of the total population, 19% were under the age of 15, 20.95% aged 15 to 29, 44.42% aged 30 to 64, 13.83% aged 65 to 84, and 1.80% were 85 years of age and older.
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Updated Jul 26, 2024

Maricopa County, AZ population age distributions

A complete breakdown of Maricopa County'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 259,471 5.86%
5 to 9 years 278,403 6.28%
10 to 14 years 303,787 6.86%
15 to 19 years 300,438 6.78%
20 to 24 years 301,557 6.81%
25 to 29 years 326,106 7.36%
30 to 34 years 317,274 7.16%
35 to 39 years 296,132 6.68%
40 to 44 years 288,896 6.52%
45 to 49 years 277,326 6.26%
50 to 54 years 272,898 6.16%
55 to 59 years 265,846 6%
60 to 64 years 249,967 5.64%
65 to 69 years 213,132 4.81%
70 to 74 years 186,304 4.2%
75 to 79 years 131,533 2.97%
80 to 84 years 82,001 1.85%
85 years and over 79,800 1.8%
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Maricopa County, AZ population by age group

Key stats
1.44 million
Population under 25 years
1.23 million
Population aged 25-44
1.07 million
Population aged 45-64
692,770
Population aged 65+

Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022

FIGURE 1

Maricopa County, AZ population by age group.

The largest age group is 25 to 29 years with a population of 326,106 (7.36% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

The largest age group in Maricopa County, AZ was for the group of age 25 to 29 years with a population of 326,106 (7.36%), according to the 2018-2022 American Community Survey.

At the same time, the smallest age group in Maricopa County, AZ was the 85 years and over with a population of 79,800 (1.80%).

Maricopa County, AZ population by age cohort

To better understand the age distribution of Maricopa County, AZ'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

FIGURE 2

Maricopa County, AZ population by age cohort

The largest age group was 18 to 64 years with a population of 2.71 million (61.25% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Maricopa County, AZ population by age cohort

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

Age Group Population % of Total Population
Under 18 years 1,024,140 23.11%
18 to 64 years 2,713,961 61.25%
65 years and over 692,770 15.64%
Exploring Maricopa County's Diversity? Request Customized Data Now!

Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Maricopa County 's population under 18 was 23.11%, compared to the 22.11% nationwide.
  • Maricopa County's working population (between 18 and 64) was 61.25%, compared to 61.36% nationwide.
  • Maricopa County's elderly or the senior population (over 65 age) was 15.64% as compared to 16.53% nationwide.

Maricopa County, AZ population pyramid

Population pyramid for Maricopa County, AZ 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 Maricopa County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Maricopa County, AZ, is 29.1.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Maricopa County, AZ, is 23.9.
  • Total dependency ratio for Maricopa County, AZ is 53.0.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Maricopa County, AZ is 4.2.

FIGURE 3

Maricopa County, AZ population pyramid

Maricopa County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Maricopa County, AZ population pyramid

Here's the Maricopa County, AZ's male and female population across different age groups .

Age Group Population(Male) Population(Female) Total Population
Under 5 years 132,445 127,026 259,471
5 to 9 years 142,384 136,019 278,403
10 to 14 years 155,184 148,603 303,787
15 to 19 years 154,540 145,898 300,438
20 to 24 years 155,121 146,436 301,557
25 to 29 years 166,722 159,384 326,106
30 to 34 years 162,532 154,742 317,274
35 to 39 years 150,822 145,310 296,132
40 to 44 years 146,617 142,279 288,896
45 to 49 years 139,119 138,207 277,326
50 to 54 years 137,183 135,715 272,898
55 to 59 years 130,732 135,114 265,846
60 to 64 years 121,830 128,137 249,967
65 to 69 years 98,076 115,056 213,132
70 to 74 years 87,395 98,909 186,304
75 to 79 years 60,619 70,914 131,533
80 to 84 years 36,608 45,393 82,001
85 years and over 30,221 49,579 79,800
Exploring Maricopa County's Diversity? Request Customized Data Now!

Things to know

What is the population of Maricopa County, AZ under 18?

Maricopa County's population under the age of 18 is 1.02 million, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.11% of the total resident population of Maricopa County, AZ.

What is the aging population in Maricopa County, AZ?

Maricopa County's population aged 65 years and above was 692,770. As per the U.S. Census Bureau's American Community Survey, this population is 15.64% of the entire population.

References

Datasets

Explore datasets by year of publication.
2024
Maricopa County, AZ Age Group Population Dataset: A Complete Breakdown of Maricopa County Age Demographics from 0 to 85 Years and Over, Distributed Across 18 Age Groups // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the Maricopa County 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 Maricopa County. The dataset can be utilized to understand the population distribution of Maricopa County by age. For example, using this dataset, we can identify the largest age group in Maricopa County.

Key observations

The largest age group in Maricopa County, AZ was for the group of age 25 to 29 years years with a population of 326,106 (7.36%), according to the ACS 2018-2022 5-Year Estimates. At the same time, the smallest age group in Maricopa County, AZ was the 85 years and over years with a population of 79,800 (1.80%). Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Maricopa County is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Maricopa County 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 Maricopa County Population by Age. You can refer the same here

Maricopa County, AZ Age Cohorts Dataset: Children, Working Adults, and Seniors in Maricopa County - Population and Percentage Analysis // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the Maricopa County 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 Maricopa County. 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 18 to 64 years with a poulation of 2.71 million (61.25% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Maricopa County population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Maricopa County is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Maricopa County 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 Maricopa County Population by Age. You can refer the same here

Maricopa County, AZ Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Maricopa County, AZ population pyramid, which represents the Maricopa County population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Maricopa County, AZ, is 29.1.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Maricopa County, AZ, is 23.9.
  • Total dependency ratio for Maricopa County, AZ is 53.0.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Maricopa County, AZ is 4.2.
Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Maricopa County population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Maricopa County for the selected age group is shown in the following column.
  • Population (Female): The female population in the Maricopa County for the selected age group is shown in the following column.
  • Total Population: The total population of the Maricopa County 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 Maricopa County 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.

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Neilsberg Research
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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