| Zipcode | Community | City | State | Metro Area |
|---|---|---|---|---|
| 11935 | Cutchogue | Cutchogue | New York | New York-Newark-Jersey City NY-NJ-PA |
| 12920 | Chateaugay | Chateaugay | New York | Malone NY |
| 13037 | Chtg | Chittenango | New York | Syracuse NY |
| 13319 | Chadwicks | Chadwicks | New York | Utica-Rome NY |
| 13783 | Cadosia | Hancock | New York | |
| 14206 | Cheektowaga | Buffalo | New York | Buffalo-Cheektowaga-Niagara Falls NY |
| 14211 | Cheektowaga | Buffalo | New York | Buffalo-Cheektowaga-Niagara Falls NY |
| 14212 | Cheektowaga | Buffalo | New York | Buffalo-Cheektowaga-Niagara Falls NY |
| 14215 | Cheektowaga | Buffalo | New York | Buffalo-Cheektowaga-Niagara Falls NY |
| 14225 | Cheektowaga | Buffalo | New York | Buffalo-Cheektowaga-Niagara Falls NY |
| 14227 | Cheektowaga | Buffalo | New York | Buffalo-Cheektowaga-Niagara Falls NY |
| 14718 | Cassadaga | Cassadaga | New York | Jamestown-Dunkirk-Fredonia NY |
| 14722 | Chautauqua | Chautauqua | New York | Jamestown-Dunkirk-Fredonia NY |
| 17820 | Catawissa | Catawissa | Pennsylvania | Bloomsburg-Berwick PA |
| 23432 | Chuckatuck | Suffolk | Virginia | Virginia Beach-Norfolk-Newport News VA-N |
| 27521 | Coats | Coats | North Carolina | Dunn NC |
| 29405 | Chas hgts | North charleston | South Carolina | Charleston-North Charleston SC |
| 29418 | Ch hgts | North charleston | South Carolina | Charleston-North Charleston SC |
| 29418 | Chas hgts | North charleston | South Carolina | Charleston-North Charleston SC |
| 29518 | Cades | Cades | South Carolina | |
| 29667 | Cateechee | Norris | South Carolina | Greenville-Anderson-Mauldin SC |
| 29912 | Coosawhatchie | Coosawhatchie | South Carolina | Hilton Head Island-Bluffton-Beaufort SC |
| 29936 | Coosawhatchie | Ridgeland | South Carolina | Hilton Head Island-Bluffton-Beaufort SC |
| 32324 | Chattahoochee | Chattahoochee | Florida | Tallahassee FL |
| 32706 | Cassadaga | Cassadaga | Florida | Deltona-Daytona Beach-Ormond Beach FL |
| 33042 | Cudjoe key | Summerland key | Florida | Key West FL |
| 42211 | Cadiz | Cadiz | Kentucky | Clarksville TN-KY |
| 43907 | Cadiz | Cadiz | Ohio | |
| 45342 | Chautauqua | Miamisburg | Ohio | Dayton OH |
| 47362 | Cadiz | New castle | Indiana | New Castle IN |
| 47952 | Cates | Kingman | Indiana | |
| 54728 | Chetek | Chetek | Wisconsin | |
| 60411 | Chicago heights | Chicago heights | Illinois | Chicago-Naperville-Elgin IL-IN-WI |
| 60411 | Chicago hts | Chicago heights | Illinois | Chicago-Naperville-Elgin IL-IN-WI |
| 60412 | Chicago heights | Chicago heights | Illinois | Chicago-Naperville-Elgin IL-IN-WI |
| 60412 | Chicago hts | Chicago heights | Illinois | Chicago-Naperville-Elgin IL-IN-WI |
| 60475 | Chicago heights | Steger | Illinois | Chicago-Naperville-Elgin IL-IN-WI |
| 60475 | Chicago hts | Steger | Illinois | Chicago-Naperville-Elgin IL-IN-WI |
| 61014 | Chadwick | Chadwick | Illinois | |
| 62028 | Chautauqua | Elsah | Illinois | St. Louis MO-IL |
| 63015 | Catawissa | Catawissa | Missouri | St. Louis MO-IL |
| 65629 | Chadwick | Chadwick | Missouri | Springfield MO |
| 67028 | Coats | Coats | Kansas | |
| 67334 | Chautauqua | Chautauqua | Kansas | |
| 74015 | Catoosa | Catoosa | Oklahoma | Tulsa OK |
| 74015 | Cotoosa | Catoosa | Oklahoma | Tulsa OK |
| 79013 | Cactus | Cactus | Texas | Dumas TX |
| 92304 | Cadiz | Amboy | California | Riverside-San Bernardino-Ontario CA |
| 92679 | Coto de caza | Trabuco canyon | California | Los Angeles-Long Beach-Anaheim CA |