100 Largest ZIP Codes in the United States by Population in New Castle County, Delaware
Explore the 100 largest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in New Castle County, Delaware.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 19720 | NEW CASTLE | DE | 60,514 |
| 2 | 19702 | NEWARK | DE | 56,571 |
| 3 | 19711 | NEWARK | DE | 49,746 |
| 4 | 19709 | MIDDLETOWN | DE | 48,954 |
| 5 | 19701 | BEAR | DE | 44,553 |
| 6 | 19805 | WILMINGTON | DE | 39,610 |
| 7 | 19808 | WILMINGTON | DE | 38,107 |
| 8 | 19713 | NEWARK | DE | 29,952 |
| 9 | 19802 | WILMINGTON | DE | 26,065 |
| 10 | 19810 | WILMINGTON | DE | 25,569 |
| 11 | 19803 | WILMINGTON | DE | 21,437 |
| 12 | 19804 | WILMINGTON | DE | 17,986 |
| 13 | 19707 | HOCKESSIN | DE | 17,011 |
| 14 | 19801 | WILMINGTON | DE | 16,545 |
| 15 | 19703 | CLAYMONT | DE | 16,376 |
| 16 | 19809 | WILMINGTON | DE | 15,529 |
| 17 | 19734 | TOWNSEND | DE | 14,026 |
| 18 | 19806 | WILMINGTON | DE | 10,273 |
| 19 | 19807 | WILMINGTON | DE | 7,846 |
| 20 | 19717 | NEWARK | DE | 6,129 |
| 21 | 19706 | DELAWARE CITY | DE | 1,984 |
| 22 | 19730 | ODESSA | DE | 558 |
| 23 | 19732 | ROCKLAND | DE | 364 |
| 24 | 19731 | PORT PENN | DE | 328 |
| 25 | 19733 | SAINT GEORGES | DE | 173 |
| 26 | 19710 | MONTCHANIN | DE | 26 |
| 27 | 19736 | YORKLYN | DE | 17 |