Maricopa County Demographics

A map of Maricopa County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	2,393,224	2,357,571	52.5%	53.3%
Hispanic	1,422,451	1,351,415	31.2%	30.6%
Black	247,521	245,239	5.4%	5.5%
Multiracial	206,192	169,808	4.5%	3.8%
Asian	203,198	197,910	4.5%	4.5%
Native American/Other	87,162	98,625	1.9%	2.2%

Maricopa County, Arizona has an estimated population of 4,559,748, an increase from the 4,420,568 recorded in the 2020 Census. The population is 52.5% White, 31.2% Hispanic, 5.4% Black, 4.5% Asian, 4.5% Multiracial, and 1.9% Native American/Other. This demographic dot map shows the population of Maricopa County, with one dot drawn for each person counted by the Census, color-coded by race.

Maricopa is about as racially diverse as it was in the 2020 Census. It is about as diverse as Arizona overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Maricopa County, that probability was 61.5% in 2020 and 62.0% in the most recent ACS estimates.

Maricopa County is ranked the most populous county in Arizona, out of 15 counties. Maricopa County was ranked the 1st most populous county in the 2020 Census.

Maricopa County's White Population

2,393,224 residents of Maricopa County, or 52.5% of the population, identify as White. The share of White residents in Maricopa County is comparable to the share in Arizona overall, where 52.6% of the population is White. Maricopa County ranks 7th statewide in terms of White residents as a share of the population, out of 15 counties.

Since the 2020 Census, Maricopa County's White population has grown by an estimated 1.5%. White residents' share of Maricopa County's population has decreased from 53.3% to 52.5%.

Maricopa County is more White than neighboring Pima County (50.5% White), and Yuma County (29% White). Maricopa County is less White than neighboring Pinal County (54.9% White), Yavapai County (77.4% White), and La Paz County (57.3% White).

Maricopa County's Black Population

247,521 residents of Maricopa County, or 5.4% of the population, identify as Black. The share of Black residents in Maricopa County is comparable to the share in Arizona overall, where 4.4% of the population is Black. Maricopa County ranks 1st statewide in terms of Black residents as a share of the population, out of 15 counties.

Since the 2020 Census, Maricopa County's Black population has remained roughly the same. Black residents' share of Maricopa County's population has remained roughly unchanged at 5.4%.

Maricopa County is more Black than neighboring Pinal County (5.1% Black), Yavapai County (0.5% Black), Pima County (3.3% Black), Yuma County (1.5% Black), and La Paz County (1.4% Black).

Maricopa County's Asian Population

203,198 residents of Maricopa County, or 4.5% of the population, identify as Asian. The share of Asian residents in Maricopa County is comparable to the share in Arizona overall, where 3.5% of the population is Asian. Maricopa County ranks 1st statewide in terms of Asian residents as a share of the population, out of 15 counties.

Since the 2020 Census, Maricopa County's Asian population has grown by an estimated 2.7%. Asian residents' share of Maricopa County's population has remained roughly unchanged at 4.5%.

Maricopa County is more Asian than neighboring Pinal County (1.6% Asian), Yavapai County (1.1% Asian), Pima County (2.9% Asian), Yuma County (1% Asian), and La Paz County (1.4% Asian).

Maricopa County's Hispanic Population

1,422,451 residents of Maricopa County, or 31.2% of the population, identify as Hispanic. The share of Hispanic residents in Maricopa County is comparable to the share in Arizona overall, where 31.4% of the population is Hispanic. Maricopa County ranks 6th statewide in terms of Hispanic residents as a share of the population, out of 15 counties.

Since the 2020 Census, Maricopa County's Hispanic population has grown by an estimated 5.3%. Hispanic residents' share of Maricopa County's population has increased from 30.6% to 31.2%.

Maricopa County is more Hispanic than neighboring Pinal County (29.8% Hispanic), Yavapai County (15.4% Hispanic), and La Paz County (25.6% Hispanic). Maricopa County is less Hispanic than neighboring Pima County (36.4% Hispanic), and Yuma County (64.9% Hispanic).

Maricopa County's Native American/Other Population

87,162 residents of Maricopa County, or 1.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Maricopa County is comparable to the share in Arizona overall, where 3.8% of the population is Native American/Other. Maricopa County ranks 11th statewide in terms of Native American/Other residents as a share of the population, out of 15 counties.

Since the 2020 Census, Maricopa County's Native American/Other population has declined by an estimated 11.6%. Native American/Other residents' share of Maricopa County's population has remained roughly unchanged at 1.9%.

Maricopa County is more Native American/Other than neighboring Yavapai County (1.7% Native American/Other), and Yuma County (1.2% Native American/Other). Maricopa County is less Native American/Other than neighboring Pinal County (4.2% Native American/Other), Pima County (2.5% Native American/Other), and La Paz County (11% Native American/Other).

Maricopa County's Multiracial Population

206,192 residents of Maricopa County, or 4.5% of the population, identify as Multiracial. The share of Multiracial residents in Maricopa County is comparable to the share in Arizona overall, where 4.4% of the population is Multiracial. Maricopa County ranks 7th statewide in terms of Multiracial residents as a share of the population, out of 15 counties.

Since the 2020 Census, Maricopa County's Multiracial population has grown by an estimated 21.4%. Multiracial residents' share of Maricopa County's population has increased from 3.8% to 4.5%.

Maricopa County is more Multiracial than neighboring Pinal County (4.3% Multiracial), Yavapai County (3.9% Multiracial), Pima County (4.3% Multiracial), Yuma County (2.3% Multiracial), and La Paz County (3.3% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.