United States

2,542 threatened species · Biodiversity Intelligence Dashboard

Threatened Species

2,542

CR + EN + VU

Critically Endangered

699

Highest risk

Endangered

765

Very high risk

Vulnerable

1,078

High risk

Declining

47%

1,184 species

Category Breakdown
CR 699
EN 765
VU 1078
CR: 699
EN: 765
VU: 1,078

Critically Endangered

69927%

Extremely high risk of extinction in the wild.

Endangered

76530%

Very high risk of extinction in the wild.

Vulnerable

1,07842%

High risk of extinction in the wild.

Threatened total — 2,542 species

Species by Group
🌱

plants

820

820 threatened

🐟

fishes

349

349 threatened

🦗

insects

341

341 threatened

🐚

molluscs

231

231 threatened

🍄

fungi

171

171 threatened

🐦

birds

150

150 threatened

🦀

crustaceans

142

142 threatened

🐸

amphibians

82

82 threatened

🪱

other invertebrates

73

73 threatened

🐾

mammals

56

56 threatened

🪸

corals

48

48 threatened

🕷️

arachnids

42

42 threatened

🐢

reptiles

37

37 threatened

Global Share

4.56%

of globally threatened species

Country Rank

#4

of 253 countries

Endemic Threatened

1,096

Found only here

Top Threats
1.Invasive non-native/alien species/diseases916 species
2.Logging & wood harvesting823 species
3.Habitat shifting & alteration565 species
4.Annual & perennial non-timber crops464 species
5.Housing & urban areas400 species
6.Fishing & harvesting aquatic resources393 species
7.Fire & fire suppression331 species
8.Type Unknown/Unrecorded (pollution)300 species

How to Cite

IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS

GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org

This page: SpeciesRadar (2026). United States: Biodiversity Dashboard. SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/countries/US

Species counts reflect IUCN Red List threatened categories (CR, EN, VU). · Full citation guide & data usage terms

Frequently asked questions

How many threatened species are in United States?
United States has 2,542 threatened species recorded on SpeciesRadar — 699 of those are Critically Endangered, facing an extremely high risk of extinction. The figures combine IUCN Red List data with national red list assessments where available.
How many Critically Endangered, Endangered, and Vulnerable species does United States have?
Of the 2,542 threatened species in United States, 699 are Critically Endangered, 765 are Endangered, and 1,078 are Vulnerable. Together these three IUCN Red List categories make up the "threatened" total.
What is the most endangered species in United States?
Among the 699 Critically Endangered species in United States, Dendrocephalus lithaca is one of the most at-risk — featured prominently on the country dashboard. The full list of Critically Endangered species is filterable on the Species tab.
What protected areas exist in United States?
SpeciesRadar does not yet catalogue protected areas for United States. Where available, protected-area data is drawn from the World Database on Protected Areas (WDPA) and national designations.
Which animal and plant groups are most threatened in United States?
The most affected groups in United States, by number of threatened species, are plants (820), fishes (349), and insects (341). The full taxonomic breakdown is shown on the country dashboard.
What are the biggest threats to wildlife in United States?
The leading threats to threatened species in United States are invasive non-native/alien species/diseases, logging & wood harvesting, habitat shifting & alteration, and annual & perennial non-timber crops. Each threat is mapped to the species it affects in the country's threat breakdown.
How many threatened species are found only in United States?
United States has 1,096 threatened species that are endemic — found nowhere else on Earth. Because their entire global population depends on this one country, they are especially vulnerable to local habitat loss.
How many of United States's threatened species have declining populations?
1,184 of United States's threatened species have populations that are still declining. Reversing these trends is the central focus of the conservation work the country dashboard tracks.
How does United States compare to other countries for threatened species?
United States ranks #4 of 253 countries by number of threatened species, and accounts for roughly 4.56% of all threatened species tracked worldwide. Threat is geographically concentrated, so a high rank reflects both rich biodiversity and intense pressure on it.
Where does the data for United States come from, and can I download it?
SpeciesRadar draws on the IUCN Red List, the Global Biodiversity Information Facility (GBIF), the World Database on Protected Areas, and national red lists. Every table on the United States profile — species, national red list, and protected areas — can be downloaded as a CSV spreadsheet or a branded PDF report.