There are 613 General Contractors in Johnson County, Iowa, serving a population of 144,425 people in an area of 614 square miles. There is 1 General Contractor per 235 people, and 1 General Contractor per 1 square miles.
In Iowa, Johnson County is ranked 32nd of 99 counties in General Contractors per capita, and 6th of 99 counties in General Contractors per square mile.