Population Phoenix Az 2024. Phoenix is expected to continue growing steadily for decades. The most populous cities in arizona are phoenix with 1,650,070, tucson at 547,239, mesa with 511,648, chandler at 280,167, and gilbert with 275,411.

The largest county in arizona by population count is maricopa county, which is home to 4.1 million of the state’s 6.9 million people. Phoenix population in 2024 is estimated to be 1.64 million, its fifth largest populous city in u.s with an area of 519.11 sq miles (1,344.50 sq.km).