| mexico | | crotalus scutulatus | species | 44 | 0 |
| mexico | | crotalus scutulatus scutulatus | subspecies | 1 | 0 |
| united states | | crotalus scutulatus | species | 54 | 0 |
| united states | arizona | crotalus scutulatus | species | 397 | 7 |
| united states | arizona | crotalus scutulatus scutulatus | subspecies | 2 | 6 |
| united states | california | crotalus scutulatus | species | 7 | 3 |
| united states | california | crotalus scutulatus scutulatus | subspecies | 0 | 2 |
| united states | nevada | crotalus scutulatus | species | 0 | 1 |
| united states | nevada | crotalus scutulatus scutulatus | subspecies | 0 | 1 |
| united states | new mexico | crotalus scutulatus | species | 66 | 3 |
| united states | new mexico | crotalus scutulatus scutulatus | subspecies | 0 | 2 |
| united states | texas | crotalus scutulatus | species | 0 | 1 |
| united states | texas | crotalus scutulatus scutulatus | subspecies | 2 | 1 |
| united states | utah | crotalus scutulatus | species | 0 | 1 |
| united states | utah | crotalus scutulatus scutulatus | subspecies | 0 | 1 |