5 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 57313 | Armour | 1,193 |
| 57328 | Corsica | 1,173 |
| 57330 | Delmont | 548 |
| 57344 | Harrison | 103 |
| 57364 | New Holland | 4 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 5 ZCTAs in Douglas County, South Dakota (US Census).