The following were living within Essex County at the time the 1840 Census was enumerated
Stamped No. The Essex 1840 census includes a "stamped" number sheet
Penned No. The Essex 1840 census includes a penned number every sheet
| Stamped No. | Penned No. | Name | Location | Comment |
| 181 | - | Daniel Reeves | Clinton | |
| 381 | 3 | Alexander Reeves as Alexr Reeve | Elizabethtown | |
| 387 | 9 | Richard Reeves | Elizabethtown | |
| 395 | 17 | Mrs Lucetta Reeves | Elizabethtown | Widow of Uzal Reeve |
| 337 | 16 | Joseph H. Reeves | Livingston | |
| 338 | 17 | Isaac Reeves Jr | Livingston | |
| 339 | 18 | Daniel Reeve | Livingston | |
| 339 | 18 | Wm Reeve | Livingston | |
| 447 | 38 | Moses Reeves | New Providence | |
| 220 | 24 | A? W? Reeves | Newark North Ward | |
| 213 | 17 | Abner W Reves | Newark North Ward | |
| 231 | 9 | Sarah Reeves | Newark South Ward | |
| 156 | 15 | Abner Reeve | Newark West Ward | |
| 160 | 23 | Jonas C. Reeve | Newark West Ward | |
| 173 | 49 | Wm Reeve | Newark West Ward | |
| 260 | 5 | Chas Reeve | Orange | May be "Reece" |
| 276 | 21 | Frances Reves | Orange | |
| 349 | 2 | Victor K. Reeve | Springfield | |
| 349 | 2 | Gilbert Reeve | Springfield | |
| 349 | 2 | Walter S. Reeve | Springfield | |
| 349 | 2 | Thomas A. Reeve | Springfield | |
| 350 | 3 | John Reeve | Springfield | |
| 350 | 3 | Widow I. W. Reeve | Springfield | |
| 350 | 3 | Isaac Reeve | Springfield | |
| 350 | 3 | Elias Reeve | Springfield | |
| 353 | 6 | Abner D. Reeve | Springfield | |
| 353 | 6 | Jacob Reeve | Springfield | |
| 353 | 6 | Parker Reeve | Springfield | |
| 319 | 10 | William D. Reeve | Union | |
Stamped No. The Essex 1840 census includes a "stamped" number sheet
Penned No. The Essex 1840 census includes a penned number every sheet
