ZIP code 19721: New Castle, DE
19721 is a PO Box or single-organization ZIP code in New Castle, Delaware, mainly in New Castle County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area.
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ZIP codes within 10 milesWithin 25 miles
ZIP code 19721 details
| City | New Castle |
|---|---|
| State | Delaware |
| County | New Castle County |
| Metro area | Philadelphia-Camden-Wilmington, PA-NJ-DE-MD |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | PO Box / single organization |
| Center coordinates | 39.56450, -75.59700 |
ZIP codes near 19721
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 19891 | Wilmington, DE | same location | — |
| 19712 | Newark, DE | same location | — |
| 19896 | Wilmington, DE | same location | — |
| 19721 | New Castle, DE | same location | — |
| 19880 | Wilmington, DE | same location | — |
| 19715 | Newark, DE | same location | — |
| 19714 | Newark, DE | same location | — |
| 19718 | Newark, DE | same location | — |
About ZIP code 19721
What city is ZIP code 19721?
ZIP code 19721 is in New Castle, DE, in New Castle County.
What county is ZIP code 19721 in?
19721 is mainly in New Castle County, Delaware.
Why doesn't 19721 have a population?
19721 is a PO Box or single-organization ZIP code. It has a post office location but no residential delivery area, so the Census Bureau reports no population for it.
What time zone is ZIP code 19721 in?
19721 is in Eastern Time (UTC−5). It observes daylight saving time.