Steven L. Smith, Bellingham, WA Home Inspector (King of the House)


Black Widow Spiders In Western Washington!

 I have to admit, as a Washingtonian all my life, I have always thought that the only place a person would find black widows spiders would be east of the mountains, as in eastern Washington. Those of us born and raised here know that the "serious" spiders and snakes are found on the hot side of the state. Now, that does not mean that some dingbat does not catch, and bring over, a rattler or two. I remember in my senior year at Bellingham High School, back before Lincoln was elected President, a kid brought two rattlers to biology. They were in an aquarium in class. Some goof let them out and they immediately found a hole in the wall and vanished. That wing of the school was cordoned off till they found them -- somehow -- later in the day.

And, back to spiders, I had a home inspection student who worked in produce at a local grocery store. He said that the widows often come in on produce so the staff looks out for them. Now, all this makes sense as far as humans and our activities moving the species into new areas. However, last time I taught a class in wood destroying organisms at Bellingham Technical College, Dan Suomi of the WSDA was a guest. He said that black widow spiders (long prevalent in Eastern WA crawl spaces) are now being found in Western WA too. I have a collection of a couple of them, preserved, but I have to admit that mine are from east of the mountains. Regardless, when Dan says they are on this side now, and we might see them at inspections, you can assume the information is accurate. As for just how poisonous they are, from what I can gather, it is kind of like people and bees. What is no big deal for one person can be very serious to another. Adult students I have had in the class, who have lived with the black widow spiders forever, said that if a person is bit, you just watch the bite and you, or your mom if you are a kid, can tell pretty quickly whether or not you need a doctor.

The funny thing is that some macho inspectors who will wrestle a serpent to the death if need be, hyperventilate if they see a tiny spider with an hourglass on its back. These otherwise brave individuals have been know to scream like little girls and exit the crawl space in a dither. I guess that is because, in the end, it is all about spiders and snakes. 


Steven L. Smith

Bellingham WA Home Inspector

Steven L. Smith

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Comment balloon 11 commentsSteven L. Smith • February 12 2008 10:12AM


Actually Steve it is not the spiders that bother me it is those King Snakes that get to me.  I haven't seen a black widow on this side of the hills yet either.
Posted by Charles Buell, Seattle Home Inspector (Charles Buell Inspections Inc.) over 12 years ago

Great post Steve,

Yep many people have fears of spides, snakes, and bugs in general. A bunch of ah, did I say that?  Ohwell

Sean Allen

Posted by Sean Allen, International Financing Solutions (International Financing Solutions ) over 12 years ago


I still think someone ought to call the SPCA about that boa that you had the death match with in that photo. You came out of it better than he did. I always knew you were wirey.

Sean, snakes are what I hate. Some people are afraid of mice and rats. Not that I like to hang with any of them, snakes creep me out.

Posted by Steven L. Smith, Bellingham WA Home Inspector (King of the House Home Inspection, Inc.) over 12 years ago

I am an avid hiker, camper, and reptile enthusiast, and so am a little more knowledgable than John Q Public. I live in Bothell, which is in Snohomish county if you didn't know, and I have a black widow living in my garage. I am positive I didn't transplant it and I have read that most known established populations are in my county. Should I notify anyone in particular about the presence of this spider in my garage? I was going to leave it alone, but my girlfriend is afraid the spider will decide to come inside, or she'll get bit and wants me to spray the garage. Just spreading my question around to every possible web site that mentions them in western washington to get opinions. please email responses to

Posted by Andy O'Connor about 12 years ago


I know that Dan Suomi of the state WSDA knows that the black widows get over to this side of the state. He has told me that a few times. I am pretty sure I saw one at Point Roberts. They are still more common the east side. I guess you can spray it or not. The people who live around them often do not worry much about them. But some people are allergic, sort of like bees and the different effects they have on people.

Posted by Steven L. Smith, Bellingham WA Home Inspector (King of the House Home Inspection, Inc.) about 12 years ago

KNOW they live in washington! When I lived in Bremerton many years ago, we would find them all the time in our garage. Our food pantry was out there and they would always hide in the corners above the food. I was always soooo scared to grab for food. I burnt their baby sacks as much as I could but I was too scared to touch them. My sister in Port Orchard also just found one 2 days ago when they ripped apart their front porch. Creepy little buggers!!

- Stacey

Posted by Anonymous almost 12 years ago

I am pretty sure I saw one at Point Roberts  once too, as mentioned above....that is almost Canada.

Posted by Steven L. Smith, Bellingham WA Home Inspector (King of the House Home Inspection, Inc.) almost 12 years ago

I dare say that 99+% of the Black Widows here on the West side came here in hay from the East side. I'm fairly certain that if you find one and then you look around your neighborhood you will discover that you are in fairly close proximity to where they keep cattle or horses.  Still it's kind of creepy to think that "they" are here...

Posted by Joel Sanders about 11 years ago
I actually went and picked up a hot tub from craigslist in the bothell area and we found no less than five living underneath it. Before that I had no idea they were even around here.
Posted by Rex about 11 years ago

Feels kinda odd to Like something about deadly spiders, but it is appropriate. Thank you for the warning: I'm often up-to-my-elbows in the farthest corners of garages and attics.

Posted by Lauren Williams, CPO, CVO, Professional Organizer: Puget Sound homes (Casual Uncluttering LLC) almost 4 years ago

Pulled a small irrigation cover up today in Des Moines marina area. Small, yet active black widow had nested in the cover underside. They are around ...

Posted by Jerry about 2 years ago