New Castle
Delaware
29
Total ZIPs
533,487
Total Population
ZIP Codes in New Castle
| ZIP Code | City | Population | Density |
|---|---|---|---|
| 19720 | New Castle | 59,250 | 617 |
| 19702 | Newark | 51,899 | 708 |
| 19711 | Newark | 51,322 | 724 |
| 19805 | Wilmington | 40,937 | 2,971 |
| 19701 | Bear | 39,194 | 569 |
| 19808 | Wilmington | 38,442 | 1,061 |
| 19709 | Middletown | 35,107 | 170 |
| 19713 | Newark | 30,408 | 858 |
| 19810 | Wilmington | 25,011 | 1,223 |
| 19802 | Wilmington | 24,621 | 2,997 |
| 19803 | Wilmington | 21,364 | 655 |
| 19804 | Wilmington | 17,944 | 927 |
| 19707 | Hockessin | 16,483 | 482 |
| 19801 | Wilmington | 16,286 | 1,521 |
| 19703 | Claymont | 14,471 | 1,424 |
| 19809 | Wilmington | 14,049 | 775 |
| 19734 | Townsend | 11,651 | 58 |
| 19806 | Wilmington | 9,560 | 1,915 |
| 19807 | Wilmington | 7,405 | 146 |
| 19717 | Newark | 3,770 | 7,834 |
| 19706 | Delaware City | 1,822 | 191 |
| 19716 | Newark | 1,568 | 11,520 |
| 19730 | Odessa | 451 | 127 |
| 19731 | Port Penn | 252 | 102 |
| 19733 | Saint Georges | 110 | 1,036 |
| 19710 | Montchanin | 41 | 142 |
| 19736 | Yorklyn | 32 | 93 |
| 19732 | Rockland | 25 | 15 |
| 19735 | Winterthur | 12 | 24 |
All data sourced from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023).
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.