| Zip Code | City | Population ↓ |
|---|---|---|
| 63650 | Ironton | 3,908 |
| 63621 | Arcadia | 1,681 |
| 63620 | Annapolis | 1,027 |
| 63623 | Belleview | 802 |
| 63663 | Pilot Knob | 759 |
| 63656 | Middle Brook | 580 |
| 63636 | Des Arc | 487 |
| 65439 | Bixby | 29 |
| 63675 | Vulcan | 12 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 9 ZCTAs in Iron County, Missouri (US Census).