ZIP Code 19318 is located in Chatham Pennsylvania. 19318 is entirely within Chester County. Regionally, it is located in Metro Philadelphia.
| ZIP Code Name | Chatham |
| Primary County | Chester County |
| ZIP Code Type | PO Box |
| Current Time | EDT |
| Coordinates | 39.82293701,-75.82745361 |
| Adjacent ZIP Codes | |
| Region | Metro Philadelphia |
| Metropolitan/Micropolitan Stat Area | Philadelphia-Camden-Wilmington, PA-NJ-DE-MD |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |