Arizona's Population Boom Brakes in 2025 Amid Immigration Dip

New U.S. Census Bureau estimates released Tuesday show Arizona's population reached 7,623,818 as of July 1, 2025, up 0.9% or 67,394 people from the prior year — a fraction of the blistering gains that vaulted the state to fifth in numeric growth since the 2020 Census. The slowdown mirrors a national drop tied to reduced net international migration, which had fueled 97% of Arizona's 460,000-resident surge from 2020 to 2024. Metro Phoenix, anchoring Maricopa County's 4.73 million residents — 62% of the state — continued to dominate, outpacing the U.S. average and trailing only Dallas and Houston among major metros.

In the Phoenix-Mesa-Chandler metro, population momentum sustained housing and service expansions through 2025, even as Pima County's Tucson area (1.09 million) and Pinal County's fast-rising expanse (480,000) felt the chill. Statewide nonfarm employment hit 3.28 million jobs in April 2025, up 0.6% year-over-year, led by health care, construction and mining amid a 4.1% unemployment rate. Yet demographic headwinds loom: fertility rates sank to 1.6 in 2023, nearly one-fifth of Arizonans are 65 or older, and the pipeline of new workers will shrink as fewer turn 18 each year.

Economists at the Arizona Office of Economic Opportunity project another 900,000 residents by 2035, with migration still kingpin — but watch housing permits, health care payrolls and labor force participation, up 1.4% year-over-year, for signs of further cooling. Phoenix's 2.48 million jobs, 76% of the state's total, mirror the trend, shifting toward health care, logistics and trades while retail softens. For Arizona's metros, the 2025 slowdown signals a pivot from breakneck expansion to sustainable recalibration.