| Wyomissing, PA (Borough) |
| Wysox, PA (Township) |
| Wysox Township, IL (Township) |
| Wythe County, VA (County) |
| Wythe Township, IL (Township) |
| Wytheville, VA (Town) |
| Xenia, OH (City) |
| Xenia, IL (Village) |
| Xenia Township, IL (Township) |
| Xenia Township, OH (Township) |
| Xentury City Community Development District, FL (CDD) |
| Yachats, OR (City) |
| Yacolt, WA (Town) |
| Yadkin County, NC (County) |
| Yadkinville, NC (Town) |
