To
assist those scanner radio enthusiasts who monitor Route 15, this mile marker directory should assist you in determining which support agencies (Police, Fire, EMS) to monitor, should only a mile marker be given as the location.
| Mile Marker | Municipality | County |
| 0.0 - 1.35 | Dover Town | Morris |
| 1.35 - 1.4 | Rockaway Boro | Morris |
| 1.4 - 1.6 | Dover Town | Morris |
| 1.6 - 1.65 | Rockaway Boro | Morris |
| 1.65 - 2.5 | Wharton Boro | Morris |
| 2.5 - 3.6 | Rockaway Boro | Morris |
| 3.6 - 8.9 | Jefferson Township | Morris |
| 8.9 - 16.2 | Sparta Township | Sussex |
| 16.2 - 19.4 | Lafayette Township | Sussex |
| 19.4 - 19.53 | Frankford Township | Sussex |