ZIP Code 19890 is located in Wilmington Delaware. 19890 is entirely within New Castle County. Regionally, 19890 is located in Metro Philadelphia.
| ZIP Code Name | Wilmington |
| Primary County | New Castle County |
| ZIP Code Type | Unique |
| Current Time | EDT |
| Coordinates | 39.74652100,-75.54707336 |
| Adjacent ZIP Codes | |
| Neighborhoods in 19890 | |
| Region | Metro Philadelphia |
| Metropolitan/Micropolitan Stat Area | Philadelphia-Camden-Wilmington, PA-NJ-DE-MD |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| School Districts in 19890 | |
| Elementary Schools in 19890 | |
| Middle Schools in 19890 | |
| High Schools in 19890 |