Maricopa County, Arizona Population 2020

Maricopa County, Arizona's estimated population is 4,573,310 with a growth rate of 1.81% in the past year according to the most recent United States census data. Maricopa County, Arizona is the largest county in Arizona.

Year Population Growth Growth Rate
20204,573,31081,2401.81%
20194,492,07081,2501.84%
20184,410,82081,2401.88%
20174,329,58070,9801.67%
20164,258,60083,5502.00%
20154,175,05079,5401.94%
20144,095,51076,4901.90%
20134,019,02070,8001.79%
20123,948,22073,1601.89%
20113,875,06049,8701.30%
20103,825,1901,703,09080.25%
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%
2020 Growth Rate
1.81%
County Website
State
Founded
February 14, 1871
County Seat

Maricopa County, Arizona Population Growth

Population by Race

Race Population Percentage
White3,301,81877.62%
Some Other Race296,5696.97%
Black or African American232,6905.47%
Asian176,7404.15%
Two or More Races153,9963.62%
American Indian and Alaska Native82,6991.94%
Native Hawaiian and Other Pacific Islander9,4050.22%

Maricopa County, Arizona Population Pyramid 2020

Maricopa County, Arizona Median Age

36.1


Total

35


Male

37.3


Female

Maricopa County, Arizona Adults

There are 3,211,670 adults, (615,277 of whom are seniors) in Maricopa County, Arizona.

Maricopa County, Arizona Age Dependency

63.8

Age Dependency Ratio

23.7

Old Age Dependency Ratio

40.1

Child Dependency Ratio

Maricopa County, Arizona Sex Ratio

Female

2,149,770

50.54%

Male

2,104,140

49.46%

Maricopa County, Arizona Households and Families

Maricopa County, Arizona Renter vs Owner Occupied by Household Type

Maricopa County, Arizona Household Types

Type Owner Renter
Married76.2%23.8%
All61.4%38.6%
Non Family49.5%50.5%
Male48.9%51.1%
Female42.9%57.1%

61.4%

Rate of Home Ownership

Type Count Average Size Owned
All1,520,7702.7661.4
Married722,6473.476.2
Non Family524,4221.3649.5
Female187,3453.7842.9
Male86,3533.7248.9

3.39

Average Family Size

2.76

Average Household Size

6.9%

Unmarried (Opposite Sex)

0.5%

Unmarried (Same Sex)

Maricopa County, Arizona Education

Education Attained Count Percentage
Less Than 9th Grade165,5555.89%
9th to 12th Grade188,9586.72%
High School Graduate634,81022.58%
Some College685,29924.37%
Associates Degree237,7998.46%
Bachelors Degree571,40820.32%
Graduate Degree327,66211.65%

Maricopa County, Arizona Educational Attainment by Race

Name Total High School Bachelors
White1,772,3801,685,330680,361
Hispanic692,356462,25389,419
Other Race164,42599,08416,078
Black141,617127,26835,615
Asian123,093108,55971,691
Multiple Races60,10253,39518,369
Native American47,95039,4097,555
Islander5,8925,2871,061

The highest rate of high school graduation is among white people with a rate of 95.09%.

The highest rate of bachelors degrees is among asian people with a rate of 58.24%.

Name Average Male Female
Overall$39,964$44,075$34,998
Less Than High School$22,503$25,971$18,439
High School Grad$30,757$33,933$26,395
Some College$37,491$42,491$32,728
Bachelors Degree$54,188$65,991$45,353
Graduate Degree$69,626$87,021$56,424

$39,964

Average Earnings

$44,075

Average Male

$34,998

Average Female

Maricopa County, Arizona Language

Maricopa County, Arizona Language by Age

Maricopa County, Arizona Language

73.04% of Maricopa County, Arizona residents speak only English, while 26.96% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 20.48% of the population.

Maricopa County, Arizona Poverty

Maricopa County, Arizona Poverty by Race

Name Total In Poverty Poverty Rate
Hispanic1,295,340305,33323.57%
White2,340,490214,3589.16%
Other291,87274,84825.64%
Black227,28448,32321.26%
Multiple151,31223,78415.72%
Native80,64220,89725.91%
Asian174,64620,71011.86%
Islander9,2161,31814.30%

14.73%

Overall Poverty Rate

13.81%

Male Poverty Rate

15.63%

Female Poverty Rate

Poverty in Maricopa County, Arizona

The race most likely to be in poverty in Maricopa County, Arizona is Native, with 25.91% below the poverty level.

The race least likely to be in poverty in Maricopa County, Arizona is White, with 9.16% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.53%. Among those working part-time, it was 17.36%, and for those that did not work, the poverty rate was 21.99%.

Name Poverty
Less Than High School27.76%
High School14.34%
Some College9.58%
Bachelors or Greater4.88%
Name Poverty
Female Unemployed33.14%
Male Unemployed30.19%
Female Employed7.45%
Male Employed6.97%

Maricopa County, Arizona Income

Maricopa County, Arizona Income by Household Type

Name Median Mean
Households$61,606$84,884
Families$73,240$97,446
Married Families$87,543$113,079
Non Families$40,566$56,632

Maricopa County, Arizona Marital Status

Maricopa County, Arizona Marital Status

Marriage Rates

46.9%

Overall Marriage Rate

48.2%

Male Marriage Rate

45.8%

Female Marriage Rate

Maricopa County, Arizona Married by Age and Sex

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

Maricopa County, Arizona Veterans

253,896

Number of Veterans

231,617

Male Veterans

22,279

Female Veterans

War Veterans
Vietnam90,764
First Gulf War50,645
Second Gulf War41,979
Korea23,150
World War II10,635
Age Group Veterans
65 to 7465,304
75+62,608
35 to 5459,123
55 to 6444,360
18 to 3422,501
Name Veterans % of Total
White223,2898.75%
Hispanic29,1573.41%
Black14,3328.56%
Other5,0832.50%
2 or More4,6205.87%
Asian3,4972.51%
Indian2,4734.25%
Hawaiian6028.67%

$Maricopa County, Arizona Veterans by Education

6.76%

Veteran Poverty Rate

27.76%

Veteran Disability Rate

Maricopa County, Arizona Employment Status

63.9%

Labor Force Participation

60.2%

Employment Rate

5.5%

Unemployment Rate

Maricopa County, Arizona Place of Birth

Origin of Non-Citizens

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

Origin of Naturalized Citizens

38.24%

Born in Arizona

85.12%

Native Born

14.88%

Foreign Born

8.92%

Non Citizen

Place of Birth

85.12% of Maricopa County, Arizona residents were born in the United States, with 38.24% having been born in Arizona. 8.92% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

  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