Last checked November 3, 2026 against official sources.
This page lists 1 scorpion. Official accounts call 1 of them mildly venomous.
Not every species: no complete official list of Washington scorpions exists, so this page covers the ones state and Extension sources name. How lists are built.
Official sources single out these scorpions in Washington, in their own words:
Mild venom. “The venom of this small (30 mm) species is mild, but allergic reactions are possible from any venom.” Washington State University, Department of Entomology
From A to Z. Do not handle them.
Paruroctonus boreus
Venom: “The venom of this small (30 mm) species is mild, but allergic reactions are possible from any venom.” (Washington State University, Department of Entomology)
Call 911 or Poison Help at 1-800-222-1222 right away. Poison Help connects you to your local poison center, any time of day.
Dangerous wildlife: emergency 911; non-emergency 877-933-9847 or the WDFW online report. Invasive species: Washington Invasive Species Council web form or WA Invasives app; aquatic invasive species hotline 1-888-WDFW-AIS, [email protected]. Washington Department of Fish and Wildlife
Yes. A WSU repository record describes a study of the northern scorpion at the Hanford Site in southcentral Washington. WSU Entomology says it is not known to sting humans. Washington State University
“Habitat distribution and seasonality of the northern scorpion, Paruroctonus boreus (Girard) (Scorpiones: Vaejovidae), at the Hanford Site, southcentral Washington State”
Venom labels come only from official sources and link to them; "Not stated" never means harmless. How labels work.
“The venom of this small (30 mm) species is mild, but allergic reactions are possible from any venom.”
“For non-emergency dangerous wildlife complaints, call 877-933-9847, or submit an online report.”
“Habitat distribution and seasonality of the northern scorpion, Paruroctonus boreus (Girard) (Scorpiones: Vaejovidae), at the Hanford Site, southcentral Washington State”