Phoenix City Population 2025. Phoenix city, arizona is a city, town, place equivalent, and township located in arizona. Phoenix population in 2025 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).

The fastest population growth happened in the southern u.s., with more than half of the 15 fastest growing cities located in texas. The current metro area population of phoenix in 2025 is 4,777,000, a 1.27% increase from 2023.