| Yabucoa, Puerto Rico | 00767 | More |
| Yachats, Oregon | 97498 | More |
| Yacolt, Washington | 98675 | More |
| Yadkinville, North Carolina | 27055 | More |
| Yakima, Washington | 98901 | More |
| Yakima, Washington | 98902 | More |
| Yakima, Washington | 98903 | More |
| Yakima, Washington | 98904 | More |
| Yakima, Washington | 98907 | More |
| Yakima, Washington | 98908 | More |
| Yakima, Washington | 98909 | More |
| Yakutat, Alaska | 99689 | More |
| Yalaha, Florida | 34797 | More |
| Yale, Virginia | 23897 | More |
| Yale, Michigan | 48097 | More |
| Yale, Iowa | 50277 | More |
| Yale, South Dakota | 57386 | More |
| Yale, Illinois | 62481 | More |
| Yale, Oklahoma | 74085 | More |
| Yamhill, Oregon | 97148 | More |
| Yampa, Colorado | 80483 | More |
| Yancey, Texas | 78886 | More |
| Yanceyville, North Carolina | 27379 | More |
| Yankeetown, Florida | 34498 | More |
| Yankton, South Dakota | 57078 | More |
| Yankton, South Dakota | 57079 | More |
| Yantic, Connecticut | 06389 | More |
| Yantis, Texas | 75497 | More |
| Yap, Federated States Of Micronesia | 96943 | More |
| Yaphank, New York | 11980 | More |
| Yarmouth, Maine | 04096 | More |
| Yarmouth, Iowa | 52660 | More |
| Yarmouth Port, Massachusetts | 02675 | More |
| Yarnell, Arizona | 85362 | More |
| Yatahey, New Mexico | 87375 | More |
| Yates Center, Kansas | 66783 | More |
| Yates City, Illinois | 61572 | More |
| Yatesboro, Pennsylvania | 16263 | More |
| Yatesville, Georgia | 31097 | More |
| Yauco, Puerto Rico | 00698 | More |
| Yawkey, West Virginia | 25573 | More |
| Yazoo City, Mississippi | 39194 | More |
| Yeaddiss, Kentucky | 41777 | More |
| Yeagertown, Pennsylvania | 17099 | More |
| Yellow Jacket, Colorado | 81335 | More |
| Yellow Pine, Idaho | 83677 | More |
| Yellow Spring, West Virginia | 26865 | More |
| Yellow Springs, Ohio | 45387 | More |
| Yellowstone National Park, Wyoming | 82190 | More |
| Yellowtail, Montana | 59035 | More |
