Phoenix Population 2025 Chart. The largest county in arizona by population count is maricopa. Explore arizona’s population trends, growth, and demographic shifts in 2025, with insights on urban planning and labor dynamics.

Based on the latest 2025 data from the us census, the current population of phoenix is 1,650,070. The population of arizona is concentrated around phoenix, the state capital, and tucson, the second largest city in the state.