Phoenix Population 2024 Demographics 2022. A sign marks the entrance to a voting precinct on the first day of early voting in the general election in phoenix, oct. The metro area population of phoenix in 2021 was 4,584,000, a 1.62% increase.
5,070,110), including age, race, sex, income, poverty, marital status, education and more. The largest county in arizona by population count is maricopa.