2020 Census state-by-state estimates released today:
https://www.census.gov/programs-surv...estimates.html
Despite COVID if I'm reading the table right Arizona had its largest yearly increase of population this decade at roughly 130,000 people. The total population estimate for Arizona as of July 2020 is 7,421,401, which represents just over a 1,000,000 person increase in population since 2010.
We started the decade as the 16th most populous state, and during the decade passed Indiana and Massachusetts and now sit at 14th. We are slowly catching up to Washington, but they are growing nearly as fast as we are. If current growth rates continue, in another 10 years we'd probably still be 14th, maybe 13th passing Washington, but we'd be bunched up with Virginia, New Jersey and Washington as having relatively similar populations.