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Tickpedia/States/Washington/Ticks

Ticks established in Washington

Ticks established here

1 species

Western blacklegged tick
Ixodes pacificus
moderate17 counties

Tickpedia

A field guide to ticks, the diseases they carry, and how to get them off you. Open source — MIT.

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Surveillance data: CDC. Geographic centroids: US Census Bureau Gazetteer. One-liners and editorial copy: this project, with citations on every fact.

© 2026 Tickpedia contributors · MITNot medical advice — see about for the limits.