{"INCITS": "47139", "name": "Polk County", "shortname": "Polk", "state": "Tennessee", "stateabbrev": "TN", "population": 18338, "core_statistical_area": "Cleveland, TN Metropolitan Statistical Area", "combined_statistical_area": "Chattanooga-Cleveland-Dalton, TN-GA-AL Combined Statistical Area", "electioncommissionurl": null}