population hillsborough county florida
Population of Hillsborough County. Last official estimated population of Hillsborough County was 1,234,145 (year 2014)[1]. This was 0.387% of total US population and 6.1% of total Florida state population. Area of Hillsborough County is 1,265.7 miÂ² (=3278.2 kmÂ²), in this year population density was 975.06 p/miÂ².