| Official Zip Code Name | Mc Gregor |
| Zip Code State | Iowa |
| Primary County: | Clayton |
| Area Code | 563 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 6 |
| Elevation Range | 879 ft. |
| Area | 56.712 Sqm. |
| Coordinates(Y,X) | 42.996650, -91.236934 |