Thursday , September 21 2023
Venomous Spiders

What Venomous Spiders Live in California

Are you looking to move to California?

With its stunning coastlines, picturesque mountains, and balmy climate, California is a popular choice for anyone looking to relocate. Many people are probably unaware that California also has more venomous spiders than any other state.

If you’re afraid of spiders and are wondering if you really want to call California home, we’ve put together a list of all the spiders you’ll be sharing the state with. No need to move back to wherever you came from.

Let’s get started!

Venomous Spiders

Black Widow

This spider is an adaptable species, which allows for the species to be able to live in a variety of climates and locations. The Black Widow prefers cool climates and can even survive in California’s dry and hot climates. The Black Widow is also thought to feed on a variety of different insects and even small creatures such as mice and birds.

This is a solitary spider, preferring to live alone and build its own webs amongst the grass, bushes, and other underground burrows. Finally, it produces a black web that can be spotted easily due to its strong contrast against the light colors found in California’s flora and fauna.


Tarantulas can be in most arid or semi-arid areas of the state, with higher concentrations located in the Central Valley, where they make their homes in burrows and crevices in the ground. They have powerful venomous fangs which enable them to subdue their prey, as well as defend themselves from predators like large lizards, birds, and small mammals. They also feed on other arachnids, insects, and even small vertebrates like lizards and mice.

Brown Recluse

Despite its small size, the Brown Recluse is very venomous and is a threat even to humans who come across them. The venom is potent and can be life-threatening if not treated quickly.

It is one of the few spiders in California, so it is important to be cautious if one is seen. Many people in California find these spiders inside their homes or outside, in closets, basements, underneath rocks or logs, and in other secluded areas.

Black House Spiders

They are usually encountered in dark and damp places around the house like basements, closets, and garages. These spiders are typically brownish-black in color and have long legs that span up to an inch in length.

Due to the fact that they are aggressive and deliver a powerful bite, they are considered to be dangerous spiders in the state of California. The bite often causes pain and redness followed by swelling and itching.

If you saw this you may want to contact pest control to prevent further issues. Visit for more information.

Learn About These Venomous Spiders Today

California is known for its many venomous spiders. Brown Recluse and Black Widow spiders are some of the most commonly encountered vicious spiders, but Tarantulas, and Black House spiders can also be in the state. Be sure to take extra caution when dealing with any spiders, as getting bit could be dangerous.

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