| Official Zip Code Name | Colby |
| Zip Code State | Kansas |
| Primary County: | Thomas |
| Area Code | 785 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 6 |
| Elevation Range | 3199 ft. |
| Area | 450.057 Sqm. |
| Coordinates(Y,X) | 39.350654, -101.055861 |