The United States is home to around 3,500 species of spiders. Most of the spiders in the USA are not dangerous for humans or larger pets. In fact, there are only two types of spiders in the US that can be dangerous for humans: the black widow and the brown recluse. Historically, a bite of the hobo spider found in the Pacific Northwest has also been considered medically important – but recent reports show that the spider is not dangerous for humans.
This page provides and overview and a desription for the most common spiders found in the USA. If you find a spider that you cannot identify yourself, send us a picture and a desription of your spider to firstname.lastname@example.org and we will try our best to identify it for you. Here you can read more about what to keep in mind when taking a picture and describing your spider.
For an overview of spiders in your US state, click on any of the states on the map below. If the map is too small on mobile devices, just scroll down to get to the alphabetical link list of all US states and their most common spiders.
If you are having issues with the map, you can click on any of the links below to get to the spider overview for each state.
Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming.