| | Baker County | FL | 12003 | | Jacksonville, FL 27260 | Jacksonville-Kingsland-Palatka,
FL-GA 300 | Outlying | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=BakerCounty+FL |
| | Camden County | GA | 13039 | | Kingsland, GA 28680 | Jacksonville-Kingsland-Palatka,
FL-GA 300 | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=CamdenCounty+Georgia |
| | Clay County | FL | 12019 | | Jacksonville, FL 27260 | Jacksonville-Kingsland-Palatka,
FL-GA 300 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ClayCounty+FL |
| | Duval County | FL | 12031 | | Jacksonville, FL 27260 | Jacksonville-Kingsland-Palatka,
FL-GA 300 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=DuvalCounty+FL |
| | Nassau County | FL | 12089 | | Jacksonville, FL 27260 | Jacksonville-Kingsland-Palatka,
FL-GA 300 | Outlying | metro county (urban) | recreation | https://maps.google.com/?q=NassauCounty+FL |
| | Putnam County | FL | 12107 | | Palatka, FL 37260 | Jacksonville-Kingsland-Palatka,
FL-GA 300 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=PutnamCounty+FL |
| | St. Johns County | FL | 12109 | | Jacksonville, FL 27260 | Jacksonville-Kingsland-Palatka,
FL-GA 300 | Central | metro county (urban) | recreation | https://maps.google.com/?q=St.JohnsCounty+FL |