| Code | Name | Region |
|---|---|---|
| USCEE | Centerville | CA |
| USCIA | Centerville | IA |
| USC2T | Centerville | IL |
| USL99 | Centerville | IN |
| USCVZ | Centerville | LA |
| USCT6 | Centerville | MA |
| USCWF | Centerville | MN |
| USM37 | Centerville | MO |
| USCN5 | Celebration | FL |
| USCEA | Celina | OH |
| USCL8 | Celina | TN |
| USICK | Celina | TX |
| USKCE | Celoron | NY |
| USEZM | Cement | OK |
| US2CC | Cement City | MI |
| USACS | Cementon | NY |
| USNNN | Centennial | CO |
| USXXC | Center | CO |
| USZT8 | Center | ND |
| USGXG | Center | TX |
| USDCC | Center Cross | VA |
| USH6C | Center Harbor | NH |
| USZRH | Center Hill | FL |
| USCWS | Center Island | WA |
| USZB3 | Center Line | MI |
| USNMS | Center Moriches | NY |
| USC7P | Center Point | AL |
| USC3P | Center Point | IN |
| USCDK | Cedar Key | FL |
| USCJJ | Cedar Knolls | NJ |
| USC4K | Cedar Lake | IN |
| USCDU | Cedar Lake | MI |
| USCPK | Cedar Park | TX |
| USCD9 | Cedar Point | NC |
| USCID | Cedar Rapids | IA |
| USDIV | Cedar River | MI |
| USCES | Cedar Springs | GA |
| USER6 | Cedar Springs | MI |
| USCJ3 | Cedar Stock | CA |
| USCEG | Cedarburg | WI |
| US5CR | Cedaredge | CO |
| USYYQ | Cedarhurst | NY |
| UST4Z | Cedarpines Park | CA |
| USCDI | Cedartown | GA |
| USVKJ | Cedarville | CA |
| USXDQ | Cedarville | NJ |
| USXDO | Cedarville | OH |
| USEFV | Cee Vee | TX |
| USRBU | Cedar Bluff | AL |
| USDFF | Cedar Bluff | VA |