17 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 19901 | Dover | 39,149 |
| 19904 | Dover | 38,125 |
| 19977 | Smyrna | 27,164 |
| 19934 | Camden Wyoming | 13,579 |
| 19943 | Felton | 13,167 |
| 19962 | Magnolia | 12,618 |
| 19952 | Harrington | 10,730 |
| 19938 | Clayton | 9,867 |
| 19946 | Frederica | 5,508 |
| 19953 | Hartly | 4,614 |
| 19954 | Houston | 1,728 |
| 19964 | Marydel | 1,570 |
| 19979 | Viola | 503 |
| 19955 | Kenton | 359 |
| 19936 | Cheswold | 176 |
| 19980 | Woodside | 118 |
| 19902 | Dover Afb | 53 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 17 ZCTAs in Kent County, Delaware (US Census).