| Zipcode | Community | City | State | Metro Area |
|---|---|---|---|---|
| 04757 | Castle hill | Mapleton | Maine | |
| 14427 | Castile | Castile | New York | |
| 16101 | Castle | New castle | Pennsylvania | New Castle PA |
| 16102 | Castle | New castle | Pennsylvania | New Castle PA |
| 16105 | Castle | New castle | Pennsylvania | New Castle PA |
| 26205 | Cottle | Craigsville | West Virginia | |
| 27816 | Castalia | Castalia | North Carolina | Rocky Mount NC |
| 30821 | Cadley | Norwood | Georgia | |
| 31009 | Cadwell | Cadwell | Georgia | Dublin GA |
| 31634 | Cogdell | Homerville | Georgia | |
| 31804 | Cataula | Cataula | Georgia | Columbus GA-AL |
| 41472 | Cottle | West liberty | Kentucky | |
| 45122 | Cozaddale | Goshen | Ohio | Cincinnati OH-KY-IN |
| 52133 | Castalia | Castalia | Iowa | |
| 61911 | Cadwell | Arthur | Illinois | |
| 62901 | Cdale | Carbondale | Illinois | Carbondale-Marion IL |
| 67663 | Codell | Plainville | Kansas | |
| 71409 | Cotile | Boyce | Louisiana | Alexandria LA |
| 76831 | Castell | Castell | Texas | |
| 81082 | Cokedale | Trinidad | Colorado | |
| 87524 | Costilla | Costilla | New Mexico | Taos NM |
| 96017 | Castella | Castella | California | Redding CA |
|
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