| Official Zip Code Name | Winthrop |
| Zip Code State | Arkansas |
| Primary County: | Little River |
| Area Code | 870 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 6 |
| Elevation Range | 325 ft. |
| Area | 53.013 Sqm. |
| Coordinates(Y,X) | 33.880461, -94.387712 |