| Official Name: | Derby, Colorado |
| Settlement Type: | Census Designated Place |
| Image Alt: | The leaves are beginning to change color around Lower Derby Lake, the largest lake on Rocky Mountain Arsenal National Wildlife Refuge. |
| Mapsize: | 250px |
| Pushpin Map: | USA |
| Pushpin Label: | Derby |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location of the Derby CDP in the |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Adams County |
| Government Type: | unincorporated community |
| Unit Pref: | US |
| Area Footnotes: | [1] |
| Area Total Km2: | 4.2 |
| Area Land Km2: | 4.2 |
| Area Water Km2: | 0 |
| Area Total Sq Mi: | 1.6 |
| Area Land Sq Mi: | 1.6 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 8407 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Timezone: | MST |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Coordinates: | 39.8403°N -104.9168°W |
| Elevation M: | 1561 |
| Elevation Ft: | 5121 |
| Postal Code Type: | ZIP Code[3] |
| Postal Code: | Commerce City 80022 |
| Area Codes: | 303 & 720 |
| Blank Name: | GNIS feature[4] |
| Blank Info: | Derby CDP |
Derby is an unincorporated community and a census-designated place (CDP) located in and governed by Adams County, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The population of the Derby CDP was 8,407 at the United States Census 2020. The Commerce City post office (Zip code 80022) serves the area.[3]
The Derby post office was established in 1910 and remained in operation until 1963.[5] The community is named after Derby, England.[6]
The Derby CDP has an area of 4.57km2, including 0.038km2 of water.[1]
The United States Census Bureau initially defined the for the