| Official Zip Code Name | Kirby |
| Zip Code State | Arkansas |
| Primary County: | Pike |
| 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 | 916 ft. |
| Area | 20.552 Sqm. |
| Coordinates(Y,X) | 34.219484, -93.639390 |