Lizards in Colorado

The state of Colorado is filled with canyons, deserts, mountains, and rivers. Naturally, such diverse habitats also act as homes to several lizard species.

Colorado is home to a rare triploid checkered whiptail, a rare lizard only found in mid to southeastern Colorado.

Lizards of Colorado

Collared Lizards

  • Common Collared Lizard
  • Eastern Collared Lizard

Horned Lizards

  • Greater Short-horned Lizard
  • Roundtail Horned Lizard
  • Texas Horned Lizard

Leopard Lizards

  • Long-nosed Leopard Lizard

Lesser Earless Lizards

  • Lesser Earless Lizard

Side-blotched Lizards

  • Common Side-blotched Lizard


  • Great Plains Skink
  • Many-lined Skink
  • Variable Skink

Spiny Lizards

  • Desert Spiny Lizard
  • Eastern Fence Lizard
  • Sagebrush Lizard

Tree Lizards

  • Ornate Tree Lizard

Whiptail Lizards

  • Colorado Checkered Whiptail
  • Common Checkered Whiptail
  • Plateau Striped Whiptail
  • Six-lined Racerunner
  • Western Whiptail


1. Are there any poisonous lizards in Colorado?

The only poisonous lizard in the United States is the Gila monster – which does not live in the state of Colorado.

Most Common Lizard: Sagebrush Lizard

Largest Lizard: Longnose Leopard Lizard

Smallest Lizard: Eastern Collared Lizard