| Zipcode | Community | City | State | Metro Area |
|---|---|---|---|---|
| 12042 | Climax | Climax | New York | |
| 12819 | Clemons | Clemons | New York | Glens Falls NY |
| 14034 | Collins | Collins | New York | Buffalo-Cheektowaga-Niagara Falls NY |
| 16242 | Climax | New bethlehem | Pennsylvania | |
| 17014 | Cocolamus | Cocolamus | Pennsylvania | |
| 24226 | Clinchco | Clinchco | Virginia | Big Stone Gap VA |
| 27012 | Clemmons | Clemmons | North Carolina | Winston-Salem NC |
| 27233 | Climax | Climax | North Carolina | Greensboro-High Point NC |
| 30421 | Collins | Collins | Georgia | |
| 35449 | Coaling | Coaling | Alabama | Tuscaloosa AL |
| 35453 | Coaling | Cottondale | Alabama | Tuscaloosa AL |
| 38955 | Calhoun cy | Slate spring | Mississippi | |
| 39834 | Climax | Climax | Georgia | Bainbridge GA |
| 40456 | Climax | Mount vernon | Kentucky | Richmond-Berea KY |
| 46725 | Collins | Columbia city | Indiana | Fort Wayne IN |
| 49034 | Climax | Climax | Michigan | Kalamazoo-Portage MI |
| 50051 | Clemons | Clemons | Iowa | Marshalltown IA |
| 50055 | Collins | Collins | Iowa | Ames IA |
| 52729 | Calamus | Calamus | Iowa | Clinton IA |
| 54207 | Collins | Collins | Wisconsin | Manitowoc WI |
| 56523 | Climax | Climax | Minnesota | Grand Forks ND-MN |
| 59634 | Clancy | Clancy | Montana | Helena MT |
| 62863 | Cowling | Mount carmel | Illinois | |
| 64738 | Collins | Collins | Missouri | |
| 67137 | Climax | Severy | Kansas | |
| 71638 | Collins | Dermott | Arkansas | |
| 80429 | Climax | Climax | Colorado | |
| 86045 | Coal mine mesa | Tuba city | Arizona | Flagstaff AZ |
| 87011 | Claunch | Claunch | New Mexico | |
| 92320 | Calimesa | Calimesa | California | Riverside-San Bernardino-Ontario CA |
| 93210 | Coalinga | Coalinga | California | Fresno CA |
| 95925 | Challenge | Challenge | California | Yuba City CA |