| Official Zip Code Name | Caldwell |
| Zip Code State | Kansas |
| Primary County: | Sumner |
| Area Code | 620 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 6 |
| Elevation Range | 1220 ft. |
| Area | 182.949 Sqm. |
| Coordinates(Y,X) | 37.106188, -97.637701 |