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