08541 is the ZIP Code for Educational Testing Service in Princeton, New Jersey. 08541 is entirely within Mercer County. Regionally, it is located in the Northern New Jersey Area.
| ZIP Code Name | Princeton |
| Organization | Educational Testing Service |
| Primary County | Mercer County |
| ZIP Code Type | Unique |
| Current Time | EDT |
| Coordinates | 40.31204224,-74.65534210 |
| Adjacent ZIP Codes | |
| Region | Northern New Jersey Area |
| Metropolitan/Micropolitan Stat Area | Trenton-Princeton, NJ |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |