Population & Household section gives reader an outlook. of general population profile, structure, and outlook.
Population Trend
Maricopa County, AZ, exhibits a robust population growth rate of 1.5% over the past year, outpacing the state average of 1.3%. With a median age of 37.1, it is slightly younger than the state median of 38.4. The county's age dependency ratio of 63.1 indicates a balanced demographic, with a lower old-age dependency ratio (25.4) compared to the state (30.3), suggesting a healthier working-age population. Notably, Maricopa has a higher percentage of residents under 18 (23.1%) than the state average (22.2%), reflecting its appeal to families compared to other counties like Pima and Yavapai.
Total Population
4430871
Sex Ratio
99.3 %
Population Growth (2021-2022)
1.5 %
Population CAGR (2010-2022)
1.4 %
Population Growth Rate (%)
Source: Census.gov
Age Structure
Dependency Rate
63.1 %
Median Age
37.1 y.o.
% of Population > 65 y.o.
15.6 %
Active Aging Index
82.3 %
Old Dependency Rate
25.4 %
Young Dependency Rate
37.7 %
Age Structure (%)
Source: Census.gov
Population Structure
Source: Census.gov
Household Status
Maricopa County, AZ, is a significant demographic hub within Arizona, housing approximately 1.67 million households, which is over 60% of the state's total. The county exhibits a higher average household size (2.62) and family size (3.19) compared to the state averages of 2.56 and 3.13, respectively. Notably, 31.8% of households include children, slightly above the state average of 30.1%, while the percentage of households with elderly residents is lower at 29.2% compared to Arizona's 33.3%. Maricopa County's household growth rate of 2.05% aligns closely with the state's growth rate of 2.07%, indicating a robust and dynamic population trend. In comparison to other counties, such as Pima and Pinal, Maricopa stands out for its larger population and higher average household sizes, reflecting its role as a primary urban center in Arizona.
Total Households
1665560
Married-couple Household
790888
Household CAGR (2010-2022)
1.57 %
Household Growth (2021-2022)
2.05 %
Average Household Size
2.62 p
Average Family Size
3.19 p
Household with Children (%)
31.8 %
Household with Elder 65+ (%)
29.2 %
Household Size
Source: Census.gov
Household Structure
Source: Census.gov
Marriage
Never Married
34.6 %
Now Married
49.1 %
Widowed
4.8 %
Divorced
11.5 %
Marriage Status
Source: Census.gov
Marriage Status Breakdown
Source: Census.gov | S1201
Cultures
*Culture section contains several components: races, education, marriage and other factors.
Racial Profiiles
Maricopa County, AZ, exhibits a diverse demographic profile, with a single race percentage of 86.4%, slightly below the state average of 86.6% and the national average of 91.2%. The Hispanic population stands at 31.7%, which is notably higher than the national figure of 18.7% and slightly below Arizona's 32%. The county's non-white population is 33.3%, aligning with the state average but higher than the national average of 34.1%. Compared to neighboring Pima County, Maricopa has a lower Hispanic percentage (31.7% vs. 38.1%), indicating a unique demographic landscape within Arizona.
One Race
86.4 %
Two or More Races
13.6 %
Non-White
33.3 %
Hispanic (Overlapping)
31.7 %
White
2954182
Black
252690
Asian
189627
Native American
83296
Race Structure (%)
Source: Census.gov
Racial Profile Breakdown
Source: Census.gov
Place of Birth
Maricopa County, AZ, has a foreign-born population of 14.5%, slightly below Arizona's state average of 13% and the national average of 13.7%. Notably, 45.5% of Maricopa's foreign-born residents are naturalized citizens, which is comparable to the state’s 47.5%. The county's percentage of residents born outside the state (45.5%) is higher than the state average (45.8%), indicating a significant influx of newcomers. In comparison to Pima County, which has a lower foreign-born percentage (12.2%), Maricopa stands out as a more diverse region, particularly with a substantial population from South America (372,273).
Native US Citizen
2954182
Native US Citizen (%)
33.3 %
Born in Arizona (%)
38.6 %
Born in Other State (%)
45.5 %
Foreign Born (%)
14.5 %
Naturalized (% of Foreign Born)
45.5 %
Place of Birth Changes (2010-2022)
Source: Census.gov
Birthplace Breakdown (Outside of US)
Source: Census.gov
Migration
-
Migration Inflow (% of Population)
15.2 %
From Different County (% of Inflow)
16.4 %
From Different State (% of Inflow)
72.4 %
From Different Country (% of Inflow)
11.2 %
%
Source: Census.gov
Religion
Number of Congregations
2655
Number of Adherents
2088166
Adherents (% of Total Population)
47.1 %
Christian (% of Total Population)
36.7 %
Religion Breakdown
Source: Census.gov
Education Attainment
Maricopa County, AZ, exhibits a strong educational profile, with 35% of its population aged 25 and older holding a bachelor's degree, surpassing the state average of 31.8% and closely aligning with the national average of 34.3%. Over the past decade, the county has seen a notable increase in degree holders, rising from 29.8%. Median earnings for those with a bachelor's degree in Maricopa stand at $65,791, higher than the state’s $61,392, indicating a robust local economy. Additionally, 44% of degree holders are enrolled in STEM fields, reflecting a commitment to education and innovation in the region.