Delaware · United States
ZIP codes by county — Delaware
3 counties
| County | FIPS | Population | Median household income |
|---|---|---|---|
| Kent County | 10001 | 185,043 | $72,872 |
| New Castle County | 10003 | 573,030 | $89,901 |
| Sussex County | 10005 | 247,799 | $78,162 |
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties. Sources: U.S. Census Bureau.