Lizards of Utah

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Utah is home to 23 native lizard species and two non-native species.

Lizards, along with snakes, belong to the order Squamata. Utah has representatives from several families, including Eublepharidae (Eyelid Geckos), Gekkonidae (Typical Geckos), Helodermatidae (Beaded Lizards), Iguanidae (Iguanas and Chuckwallas), Crotaphytidae (Collared Lizards), Phrynosomatidae (Phrynosomatid Lizards), Scincidae (Skinks), Teiidae (Whiptails and Tegus), and Xantusiidae (Night Lizards).

Lizards are the largest and most diverse group of reptiles worldwide, with over half of all reptile species belonging to this group. They generally differ from snakes by having four legs; however, several species (none of which occur in Utah) do not fit this description.

For most individuals in Utah, lizards are the most commonly encountered reptile. The species found in Utah vary in size, ranging from just a couple of inches to over a foot and a half in length. The Gila Monster is the only venomous lizard in Utah and is also the largest. 

Taxonomy is a constantly evolving field, which means that species are frequently being reclassified. Although some of the subspecies listed below are not recognized in current taxonomy, they are still commonly referred to by these names in the field herping community. Therefore, they have been included here.

Click on the names or photos below to learn more and see additional photos. 

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