population estimate pinal county arizona
Population of Pinal County. Last official estimated population of Pinal County was 385,738 (year 2014)[1]. This was 0.121% of total US population and 5.6% of total Arizona state population. Area of Pinal County is 5,374.3 miÂ² (=13919.3 kmÂ²), in this year population density was 71.77 p/miÂ².