How Long Do Lizards Live? By Species, Wild vs. Kept

“How long do lizards live” does not have one answer, because it is really several questions wearing one search query. A wild anole in a backyard and a captive bearded dragon are both lizards, and their realistic lifespans differ by a factor of ten.

Lifespan by common type

The pattern across every row is the same: whatever a species can biologically reach, wild individuals of that species fall well short of it, and kept individuals get much closer.

Why most wild lizards do not reach old age

Three pressures do almost all of the work:

Predation. Birds, outdoor cats, snakes, and larger lizards all prey on small lizard species, and juveniles are especially vulnerable in their first year.

Winter. In any climate with a real cold season, lizards that do not find adequate shelter do not survive it. This is a hard ceiling on lifespan in much of the US, regardless of what the species is biologically capable of.

Food consistency. Wild lizards depend on insect availability, which fluctuates with weather and season in a way a kept animal’s diet does not.

What this means if you are seeing lizards in your yard

A lizard living in a garden is very unlikely to be an old individual — the odds simply are not with it. If you are noticing the same-looking lizard in the same spot across multiple seasons, that is a genuine sign of a stable, sheltered habitat doing its job: enough cover, enough food, and few enough predators that one individual is beating the usual odds.

Lizards are also, on balance, a garden asset rather than a pest — most common species eat insects including some that damage plants, and none of the small lizards found in typical US backyards pose any real risk to people or pets. For what they are actually hunting, see what do lizards eat.