| ZIP Code | 19721 |
| City | New Castle |
| State | Delaware (DE) |
| County | New Castle County |
| Coordinates | 39.5645000, -75.5970000 |
| Population | 11,745 |
| Median Household Income | $61,500 |
| Median Home Value | $256,000 |
| Unemployment Rate | 4.1% |
| ZIP Type | STANDARD |
| Country | United States |
Located in Delaware, the United States is home to the mid-sized community of New Castle, served by ZIP code 19721. It sits within New Castle County County.
Census data puts the population of this ZIP code at 11,745 residents. That's below the Delaware average of about 22,856 people per ZIP code.
Median household income is about $61,500 (below the Delaware average).
Other ZIP code codes in Delaware serve areas such as Delmar, Wilmington, Dover.
The ZIP code for New Castle, Delaware is 19721.
19721 is located in New Castle County County, Delaware.
The population of 19721 (New Castle) is approximately 11,745 people.
19721 is less populated than the typical Delaware ZIP code, which averages around 22,856 people.
ZIP code codes near 19721 include 19940, 19804, 19906.