Resident Population in Pinal County, AZ was 484.23900 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Pinal County, AZ reached a record high of 484.23900 in January of 2023 and a record low of 68.57900 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Pinal County, AZ - last updated from the United States Federal Reserve on May of 2024.