{"public_id": "3ed0b504-89d6-4122-ace9-36e786910c1a", "provider": "public_directory", "external_id": "county-fill:office:IA-19123-county-supervisor", "source_url": "https://member-portal.iowacounties.org/countydirectory/directory/Mahaska", "source_name": "Iowa State Association of Counties: ISAC County Directory: Mahaska County", "fetched_at": "2026-10-05T20:03:13+00:00"}