The table below gives the surnames that appeared in the 1841 census, and the number of persons on Bute with that surname at the time of the census.
| The Bute 1841 Census | |||||||||
| Adam | 7 | Bennett | 1 | Burns | 2 | Cowie | 9 | Drain | 2 |
| Adkins | 1 | Berry | 2 | Calder | 1 | Craig | 4 | Driver | 3 |
| Agnew | 7 | Bett | 1 | Cameron | 36 | Crawford | 64 | Duff | 8 |
| Aitken | 9 | Biggard | 2 | Campbell | 190 | Creeth | 11 | Dunbar | 4 |
| Alexander | 12 | Bingham | 1 | Cannon | 1 | Crichton | 3 | Duncan | <td class=s|