| | Chilton County | AL | 01021 | | Birmingham, AL 13820 | Birmingham-Cullman-Talladega,
AL 142 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=ChiltonCounty+AL |
| | Choctaw County | AL | 01023 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ChoctawCounty+AL |
| | Clarke County | AL | 01025 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ClarkeCounty+AL |
| | Clay County | AL | 01027 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ClayCounty+AL |
| | Cleburne County | AL | 01029 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CleburneCounty+AL |
| | Coffee County | AL | 01031 | | Enterprise, AL 21460 | Dothan-Enterprise-Ozark,
AL 222 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CoffeeCounty+AL |
| | Colbert County | AL | 01033 | | Florence-Muscle Shoals,
AL 22520 | Florence-Muscle
Shoals-Russellville, AL 250 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ColbertCounty+AL |
| | Conecuh County | AL | 01035 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ConecuhCounty+AL |
| | Coosa County | AL | 01037 | | Talladega-Sylacauga, AL 45180 | Birmingham-Cullman-Talladega,
AL 142 | Outlying | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=CoosaCounty+AL |
| | Covington County | AL | 01039 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CovingtonCounty+AL |