San Tan Valley is one of Arizona's fastest-growing communities — and in 2025, after more than a decade as the state's largest unincorporated community, a portion of the San Tan Valley area incorporated as the Town of San Tan Valley, giving residents their own local government for the first time. About an hour southeast of Phoenix, San Tan Valley offers the feel of a close-knit community with hiking trails, dark skies, golf, and mountain views, nestled against the foothills of the San Tan