The most people with last name
Diffley lives in:
| Marietta, GA | 4 |
| St. Louis, MO | 4 |
| Tucson, AZ | 2 |
| Columbus, OH | 2 |
| Brooklyn, WI | 2 |
| New Berlin, WI | 2 |
| Los Angeles, CA | 1 |
| Murrieta, CA | 1 |
| San Francisco, CA | 1 |
| Santa Clarita, CA | 1 |
| Santa Rosa, CA | 1 |
| Lewes, DE | 1 |
| Bradenton, FL | 1 |
| Holmes Beach, FL | 1 |
| Atlanta, GA | 1 |
| Stone Mountain, GA | 1 |
| Iowa City, IA | 1 |
| Spring Hill, KS | 1 |
| Burlington, MA | 1 |
| Bethesda, MD | 1 |
| Silver Spring, MD | 1 |
| Shoreview, MN | 1 |
| St. Paul, MN | 1 |
| Bozeman, MT | 1 |
| Gastonia, NC | 1 |
| Raleigh, NC | 1 |
| Manhattan, NY | 1 |
| Queens, NY | 1 |
| Philadelphia, PA | 1 |
| Souderton, PA | 1 |
| West Greenwich, RI | 1 |
| Knoxville, TN | 1 |
| Euless, TX | 1 |
| Houston, TX | 1 |
| Spring, TX | 1 |
| Westover Hills, TX | 1 |
| Alexandria, VA | 1 |
| Black Diamond, WA | 1 |
| Veradale, WA | 1 |
