Local spider information

Spider control in Washington

Learn what to look for around your property, explore your city, and ask about an inspection or a quote.

Spiders in Washington: what to know

Around Washington

Conditions vary across the state. Choose your city below, then describe what’s happening around your home or business.

What to note

Where you see spiders, how long it has been going on, and anything you’ve already tried are the most useful details to mention.

A useful next step

Ask about an inspection, what treatment would involve, and whether follow-up visits are included. You don’t need to identify the problem yourself before getting in touch.

Local research

Spiders in Washington: what the public record shows

Before you compare quotes, it helps to know which spiders actually live in Washington, when they are busiest, and what the state figures look like. Everything below links to the agency or university page it came from.

Spider species recorded in Washington

Western black widow (Latrodectus hesperus) — 'The black widow spider, Latrodectus hesperus, is the most common harmful spider in California' and 'occur in most parts of California' (UC IPM); 'common in Colorado' (CSU); Lat…
Hobo spider (Eratigena agrestis) — European funnel weaver 'detected in the Pacific Northwest in 1936', now 'throughout northern Utah' and 'throughout Washington'. Current extension/health stance: not medically si…
Yellow sac spider (Cheiracanthium spp.) — 'Can be seen running on walls and ceilings at night'; bites happen when 'trapped against a person's skin in clothing or bedding' (UC IPM). One of two spiders of medical signific…

When spiders are busiest in Washington

'When temperatures start to cool, spiders may migrate into garages and homes in search of warmth and shelter' (WA DOH).

'There are two spiders in Washington of medical significance: the black widow spider' and the yellow sac spider; 'Hobo spiders (Eratigena agrestis) are not considered dangerous as previously thought' and 'can be found throughout Washington' (WA DOH). Black widows 'common to eastern Washington'; yellow sac spiders 'in eastern Washington and in the Seattle area'.

For context, nationally

Throughout North America, but are most common in the southern and western United States — Black widow distribution. CDC/NIOSH
In the midwestern and southern United States — Brown recluse distribution. CDC/NIOSH

Sources: CDC/NIOSH; Pest Notes: Spiders (PN 7442); Hobo Spider. Figures are quoted as the source prints them. How we check our sources

Explore Washington cities

Auburn

Marine West Coast · suburban setting

Spider control in Washington

Spiders in Washington: what to know

Around Washington

What to note

A useful next step

Spiders in Washington: what the public record shows

Spider species recorded in Washington

When spiders are busiest in Washington

For context, nationally

Explore Washington cities

Auburn

Bellevue

Bellingham

Everett

Federal Way

Kennewick

Kent

Kirkland

Olympia

Redmond

Renton

Richland

Seattle

Spokane

Spokane Valley

Tacoma

Vancouver

Yakima

Walla Walla

Ask about spider control in Washington