| Official Zip Code Name | Harlan |
| Zip Code State | Indiana |
| Primary County: | Allen |
| Area Code | 260 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 5 |
| Elevation Range | 776 ft. |
| Area | 23.325 Sqm. |
| Coordinates(Y,X) | 41.226644, -84.874066 |