Maricopa County remains the fourth most populous county in the nation taking into account the newest Census data. Here's how ...

Yavapai County, which borders Maricopa County to the north, saw its population increase by 7.6% over that period. Zoom in: Pinal County, once wholly reliant on agriculture and mining, has become a ...

Pinal County officials ... San Tan Valley’s population was nearly 100,000 residents, according to the 2020 U.S. Census Bureau. In 2018, the county projected the area's population — including ...