| Fairfax, KS (Township) |
| Fairfax, SC (Town) |
| Fairfax, IA (City) |
| Fairfax, OK (Town) |
| Fairfax, MN (City) |
| Fairfax, MN (Township) |
| Fairfax, OH (Village) |
| Fairfax, CA (Town) |
| Fairfax, VA (City) |
| Fairfax, SD (Township) |
| Fairfax, SD (Town) |
| Fairfax County, VA (County) |
| Fairfax Township, IA (Township) |
| Fairfield, IN (Township) |
| Fairfield, IN (Township) |
