| Category | Subcategory | Lat | Lon | Range |
|---|---|---|---|---|
| Howard County | Fire/EMS | 39.25038 | -76.93303 | 15 |
| Howard County | Police | 39.25038 | -76.93303 | 15 |
| Howard County | Services | 39.25038 | -76.93303 | 15 |
| Howard County | Schools | 39.279 | -76.934 | 14.14 |
| Amateur Radio | General Amateur Radio | 39.25038 | -76.93303 | 15 |
| Amateur Radio | GMRS | 39.279 | -76.934 | 14.14 |
| Howard County | Special Events | 39.279 | -76.934 | 14.14 |
| Howard County | Howard Community College (Columbia) | 39.21844 | -76.86164 | 0.5 |
| Amateur Radio | Skywarn/RACES | 39.25038 | -76.93303 | 15 |
