Maricopa County AZ Information


Maricopa County Subdivisions

Maricopa County AZ Data & Demographics (As of July 1, 2018)


Total Population 4,387,226
Population in Households 4,322,686
Population in Familes 3,492,063
Population in Group Qrtrs 64,540
Population Density1 477
Diversity Index2 72


Median Household Income $59,691
Average Household Income $83,005
Per Capita Income $30,701


Total Housing Units 1,813,056 (100%)
Owner Occupied HU 998,231 (55.1%)
Renter Occupied HU 607,760 (33.5%)
Vacant Housing Units 207,065 (11.4%)
Median Home Value $237,947
Average Home Value $303,705


Total Households 1,605,991
Average Household Size 2.69
Family Households 1,053,223
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.7% 1.61%
Households 1.58% 1.56%
Families 1.48% 1.5%
Median Household Income   2.67%
Per Capita Income   3.05%


Maricopa County AZ - Peer Comparisons by Rank and Percentile

The table below compares Maricopa County to the other 15 counties and county equivalents in Arizona by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 1 100th
Population Density # 1 100th
Diversity Index # 4 80th
Median Household Income # 1 100th
Per Capita Income # 1 100th

Additional comparisons and rankings can be made with a VERY EASY TO USE Arizona Census Data Comparison Tool.