Arizona became the 48th state on February 14, 1912.

Its civic profile starts with a basic tension: fast-growing communities share a desert landscape where water, land, housing, transportation, border policy, tribal sovereignty, and infrastructure decisions carry long-term consequences. Phoenix and Tucson anchor much of the state’s public life, but Native nations, border communities, mining regions, rural counties, and retirement communities all shape the political map. From here, readers can move straight to Arizona’s federal delegation, statehouse leadership, and the public records behind any claim made about state policy.