Maricopa County, Arizona Population 2021

Maricopa County, Arizona's estimated population is 4,651,440 with a growth rate of 1.82% in the past year according to the most recent United States census data. Maricopa County, Arizona is the 2nd largest county in Arizona. The 2010 Population was 3,825,110 and has seen a growth of 21.60% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
20214,651,44083,0201.82%
20204,568,42083,0101.85%
20194,485,41083,0101.89%
20184,402,40075,2201.74%
20174,327,18071,0401.67%
20164,256,14083,2401.99%
20154,172,90079,2501.94%
20144,093,65075,9301.89%
20134,017,72070,2201.78%
20123,947,50072,5001.87%
20113,875,00049,8901.30%
20103,825,1101,703,01080.25%
19902,122,100613,05040.62%
19801,509,050541,52855.97%
1970967,522304,01245.82%
1960663,510331,74099.99%
1950331,770145,57778.19%
1940186,19335,22323.33%
1930150,97061,39468.54%
192089,57655,088159.73%
191034,48814,03168.59%
190020,4579,47186.21%
189010,9865,29793.11%
18805,6890.00%
2021 Growth Rate
1.82%
County Website
State
Founded
February 14, 1871
County Seat
2010 Population
3,825,110
Growth (since 2010)
21.60%
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Maricopa County, Arizona Population Growth

Population by Race

Race Population Percentage
White3,360,30677.63%
Some Other Race288,8306.67%
Black or African American243,6405.63%
Asian181,3524.19%
Two or More Races159,1133.68%
American Indian and Alaska Native85,8761.98%
Native Hawaiian and Other Pacific Islander9,6940.22%
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Maricopa County, Arizona Population by Race

Maricopa County, Arizona Population Pyramid 2021

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Maricopa County, Arizona Median Age

36.4


Total

35.3


Male

37.6


Female

Maricopa County, Arizona Adults

There are 3,282,750 adults, (641,814 of whom are seniors) in Maricopa County, Arizona.

Maricopa County, Arizona Age Dependency

63.9

Age Dependency Ratio

24.3

Old Age Dependency Ratio

39.6

Child Dependency Ratio

Maricopa County, Arizona Sex Ratio

Female

2,188,250

50.55%

Male

2,140,560

49.45%

Maricopa County, Arizona Population by Age

Maricopa County, Arizona Renter vs Owner Occupied by Household Type

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Maricopa County, Arizona Household Types

Type Owner Renter
Married77.2%22.8%
All62.2%37.8%
Male50.5%49.5%
Non Family50%50%
Female43.5%56.5%

62.2%

Rate of Home Ownership

Maricopa County, Arizona Households and Families

Type Count Average Size Owned
All1,552,1002.7562.2
Married740,7803.477.2
Non Family533,3731.3550
Female189,7123.7443.5
Male88,2313.750.5

3.37

Average Family Size

2.75

Average Household Size

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Maricopa County, Arizona Households by Type

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Education Attained Count Percentage
Less Than 9th Grade161,0215.59%
9th to 12th Grade192,3296.68%
High School Graduate644,67122.39%
Some College694,27324.12%
Associates Degree245,2048.52%
Bachelors Degree597,87220.77%
Graduate Degree343,44511.93%
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Maricopa County, Arizona Educational Attainment by Sex (over 25)

Maricopa County, Arizona Educational Attainment by Race

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Name Total High School Bachelors
White1,797,5401,710,090703,827
Hispanic717,281488,87597,155
Other Race163,221100,84716,867
Black149,208134,69739,039
Asian127,669113,36376,407
Multiple Races64,18357,85720,455
Native American50,20641,8258,797
Islander6,2535,4351,258

The highest rate of high school graduation is among white people with a rate of 95.14%.

The highest rate of bachelors degrees is among asian people with a rate of 59.85%.

Maricopa County, Arizona Educational Attainment by Race

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Name Average Male Female
Overall$41,080$46,040$36,032
Less Than High School$24,198$27,256$19,460
High School Grad$31,328$35,099$26,950
Some College$38,904$44,447$33,220
Bachelors Degree$55,832$68,930$47,215
Graduate Degree$71,381$88,568$58,565

$41,080

Average Earnings

$46,040

Average Male

$36,032

Average Female

Maricopa County, Arizona Earnings by Educational Attainment

Maricopa County, Arizona Language by Age

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Maricopa County, Arizona Language

73.01% of Maricopa County, Arizona residents speak only English, while 26.99% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 20.40% of the population.

Maricopa County, Arizona Language

Maricopa County, Arizona Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic1,326,020287,66821.69%
White2,362,420205,4998.70%
Other283,92567,29323.70%
Black238,10446,38519.48%
Multiple156,37323,69515.15%
Asian179,45020,37111.35%
Native83,57119,57123.42%
Islander9,5421,16512.21%

13.77%

Overall Poverty Rate

12.84%

Male Poverty Rate

14.68%

Female Poverty Rate

Poverty in Maricopa County, Arizona

The race most likely to be in poverty in Maricopa County, Arizona is Other, with 23.70% below the poverty level.

The race least likely to be in poverty in Maricopa County, Arizona is White, with 8.70% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.27%. Among those working part-time, it was 16.33%, and for those that did not work, the poverty rate was 20.99%.

Maricopa County, Arizona Poverty

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Name Poverty
Less Than High School26.13%
High School13.47%
Some College9.20%
Bachelors or Greater4.71%

Maricopa County, Arizona Poverty Rate by Education

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Name Poverty
Female Unemployed31.32%
Male Unemployed28.57%
Female Employed6.92%
Male Employed6.47%

Maricopa County, Arizona Poverty Rate by Employment Status and Sex

Maricopa County, Arizona Income by Household Type

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Name Median Mean
Households$64,468$89,019
Families$76,769$102,070
Married Families$91,577$118,280
Non Families$42,408$59,342
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Income by Household Type

Maricopa County, Arizona Marital Status

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Marriage Rates

47.0%

Overall Marriage Rate

48.2%

Male Marriage Rate

45.8%

Female Marriage Rate

Maricopa County, Arizona Married by Age and Sex

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Maricopa County, Arizona Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Maricopa County, Arizona Marital Status by Race

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Maricopa County, Arizona Marital Status

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253,833

Number of Veterans

230,516

Male Veterans

23,317

Female Veterans

War Veterans
Vietnam90,754
First Gulf War52,154
Second Gulf War46,578
Korea20,864
World War II8,349

Maricopa County, Arizona Veterans by War

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Age Group Veterans
65 to 7464,480
75+63,201
35 to 5459,367
55 to 6443,002
18 to 3423,783

Maricopa County, Arizona Veterans by Age

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Name Veterans % of Total
White222,4508.54%
Hispanic29,8923.39%
Black14,5748.28%
Other5,2392.61%
2 or More4,6755.65%
Asian3,5362.45%
Indian2,8804.74%
Hawaiian4796.55%

Maricopa County, Arizona Veterans by Race

Maricopa County, Arizona Veterans by Education

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6.49%

Veteran Poverty Rate

27.79%

Veteran Disability Rate

Maricopa County, Arizona Veterans by Education

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64.2%

Labor Force Participation

60.8%

Employment Rate

5%

Unemployment Rate

Maricopa County, Arizona Employment by Age

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Maricopa County, Arizona Employment by Race

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Maricopa County, Arizona Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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38.39%

Born in Arizona

85.17%

Native Born

14.83%

Foreign Born

8.69%

Non Citizen

6.14%

Naturalized

Place of Birth

85.17% of Maricopa County, Arizona residents were born in the United States, with 38.39% having been born in Arizona. 8.69% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Maricopa County, Arizona Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources