| Place Name | Neffs |
| Place Type | Unincorporated |
| ZIP Code(s) | 18065 |
| County | Lehigh County |
| Area Code(s) | 484,610,835 |
| Timezone | Eastern Standard Time (EST) |
| Population () | |
| Metro/Micro Stats Area | Allentown-Bethlehem-Easton, PA-NJ |
| US Congressional District(s) | Pennsylvania 7th |
| State House Districts | 183 |
| State Senate Districts | 16 |