ESA Single-state Species

See how many ESA-listed species occur in just one state.

Go To App

The Endangered Species Act (ESA) is widely considered the strongest law in the world for protecting imperiled species, but some factions seek to weaken the law. For example, there are proposals to limit the scope of the ESA to species that occur in multiple states; single-state species need not apply. This is a problem because nearly 50% of ESA-listed species occur not just in one state, but just one county!

We created a simple web application (also embedded below) for users to see where single-state species occur. Simply hover over states to get numbers and percentages of single-state species. If you want to get species lists, jump over to the “Species Table” tab of the app and filter on your state of interest. Please feel free to let us know if this is useful and if you have any questions or suggestions!


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