| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Cooks Hope | city | Maryland | United States | 38.74 | -76.09 | 3 | |
| Cooksey Knolls | city | Maryland | United States | 38.47 | -76.90 | 147 | |
| Cooksville | city | Maryland | United States | 39.32 | -77.02 | 830 | |
| Cool Breeze Mobile Home Park | city | Maryland | United States | 39.34 | -76.47 | 49 | |
| Cool Hollow Estates | city | Maryland | United States | 39.57 | -77.69 | 830 | |
| Cool Meadows Farms | city | Maryland | United States | 39.61 | -76.51 | 830 | |
| Cool Pond | city | Maryland | United States | 39.08 | -76.56 | 49 | |
| Cool Spring | city | Maryland | United States | 39.59 | -76.28 | 164 | |
| Cool Springs Park | city | Maryland | United States | 39.60 | -75.93 | 111 | |
| Coon Manor | city | Maryland | United States | 39.13 | -76.89 | 262 | |
| Cooney Neck Estate | city | Maryland | United States | 38.47 | -76.72 | 101 | |
| Cooper | city | Maryland | United States | 39.70 | -76.28 | 347 | |
| Cooper Mill | city | Maryland | United States | 38.50 | -75.73 | 29 | |
| Cooperfield | city | Maryland | United States | 39.52 | -76.59 | 830 | |
| Cooperfield | city | Maryland | United States | 39.43 | -76.66 | 403 | |
| Coopersville | city | Maryland | United States | 39.55 | -76.74 | 830 | |
| Coopstown | city | Maryland | United States | 39.59 | -76.43 | 830 |