| City Name | Derby (CDP) |
| State | Colorado |
| County | Adams County |
| Population (2000) | 6,423 |
| Housing Units | 2,145 |
| Total Area | 1.64 square miles |
| Water Area | 0.00 square miles |
| Land Area | 1.64 square miles |
| Population Density | 3,920.8 people/square mile |
| Housing Density | 1,309.4 houses/square mile |