State rankings
Rattlesnakes by State
Arizona has the highest # of Species (14), followed by California (12) and Texas (9). Vermont has the lowest (1).
# of SpeciesBetter directionWhether a higher or a lower value is better. A green arrow means higher is better, a red arrow means lower is better, and no arrow means neither.More in the glossary →
45 of 51 states# of Species
Darker means higher. Click a place to highlight it.
Loading map…
All 45 ranked
Highest first.
Distribution Median and middle halfThe median is the middle value: half of places are above it, half below. The middle half is the range holding the central 50% of places.More in the glossary →
Each dot is one state; the lines mark the median and the middle half.
Median
2
Middle half 1 – 3
Average
2.89
45 states
Highest
14
Arizona
Lowest
1
Vermont
Data
Click a column to sort, a row to highlight that place on the charts.
45 states · # = rank by # of Species
| # | |||
|---|---|---|---|
| 1 |  Arizona | 14 | Arizona black, Arizona ridge-nosed+12 |
| 2 |  California | 12 | Colorado desert sidewinder, Great basin+10 |
| 3 |  Texas | 9 | Blacktail, Desert massasauga+6 |
| 4 |  New Mexico | 7 | Animas ridge-nosed, Banded rock+5 |
| 5 |  Utah | 6 | Great Basin, Hopi rattlesnake+4 |
| 6 |  Nevada | 5 | Great Basin, Mojave Desert+3 |
| 7 |  Kansas | 4 | Prairie/Western, Pygmy+2 |
| 8 |  Florida | 3 | Eastern diamondback, Pygmy+1 |
| 8 |  Georgia | 3 | Eastern diamondback, Pygmy+1 |
| 8 |  North Carolina | 3 | Eastern diamondback, Pygmy+1 |
| 8 |  Missouri | 3 | Eastern massasauga, Timber+1 |
| 8 |  Colorado | 3 | Midget-faced, Prairie+1 |
| 8 |  Alabama | 3 | Eastern diamondback, Pygmy+1 |
| 8 |  Louisiana | 3 | Canebrake, Eastern diamondback+1 |
| 8 |  Oregon | 3 | Great Basin, Northern Pacific+1 |
| 8 |  Oklahoma | 3 | Prairie/Western, Western massasauga+1 |
| 8 |  Iowa | 3 | Eastern massasauga, Prairie/Western+1 |
| 8 |  Mississippi | 3 | Canebrake, Eastern diamondback+1 |
| 8 |  Nebraska | 3 | Prairie/Western, Timber+1 |
| 20 |  New York | 2 | Massasauga, Timber |
| 20 |  Pennsylvania | 2 | Eastern massasauga, Timber |
| 20 |  Ohio | 2 | Massasauga, Timber |
| 20 |  Tennessee | 2 | Pygmy, Timber |
| 20 |  Indiana | 2 | Eastern massasauga, Timber |
| 20 |  Wisconsin | 2 | Eastern massasauga, Timber |
| 20 |  South Carolina | 2 | Canebrake, Timber |
| 20 |  Kentucky | 2 | Pygmy, Timber |
| 20 |  Arkansas | 2 | Timber, Western diamondback |
| 20 |  Idaho | 2 | Pacific, Prairie/Western |
| 20 |  Wyoming | 2 | Midget-faced, Prairie/Western |
| 31 |  Michigan | 1 | Eastern massasauga |
| 31 |  New Jersey | 1 | Timber |
| 31 |  Virginia | 1 | Timber |
| 31 |  Washington | 1 | Prairie/Western |
| 31 |  Massachusetts | 1 | Timber |
| 31 |  Maryland | 1 | Timber |
| 31 |  Minnesota | 1 | Timber |
| 31 |  Connecticut | 1 | Timber |
| 31 |  West Virginia | 1 | Timber |
| 31 |  New Hampshire | 1 | Timber |
| 31 |  Montana | 1 | Western rattlesnake |
| 31 |  Delaware | 1 | Timber |
| 31 |  South Dakota | 1 | Prairie/Western |
| 31 |  North Dakota | 1 | Prairie/Western |
| 31 |  Vermont | 1 | Timber |
What correlates with # of Species?
Pearson r against 2,125 other state metrics sharing at least 27 states. Ranks are read by standing: a better rank counts as higher, whether rank 1 is the best place on a list or the worst. Correlation is not causation.
Higher together
Places that have a higher # of Species tend to score higher on these (or rank better)
Opposite directions
Places that have a higher # of Species tend to score lower on these (or rank worse)
Quick answers
- Which state has the highest # of Species?
- Arizona has the highest # of Species, at 14, followed by California (12) and Texas (9).
- Which state has the lowest # of Species?
- Vermont has the lowest # of Species, at 1.
- What is the median # of Species across US states?
- The median is 2 across the 45 US states with data.
- Where does this rattlesnakes by state data come from?
- Rankodex compiles it from World Population Review and the primary sources it cites: AZ Animals.