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How Big Do Children's Pythons Get?

Children's Python (Antaresia childreni)
Photo: Matt from Melbourne, Australia via Wikimedia Commons, CC BY 2.0

Children's pythons are among the smallest pythons kept, with a published enclosure figure of around 30 by 12 by 12 inches reflecting a genuinely small adult. Mice suit them for life.

Published adult size figures

FigureValueNotes
AdultAround 30 in enclosure figure implies a small snakeFrom this site's care guide
GroupOne of the smallest pythons keptAntaresia are small-bodied
PreyMice for lifeRats rarely appropriate

Checked September 20, 2026 against the sources at the foot of this page. Where sources differ the range is shown rather than averaged.

Getting there

Modest throughout

They grow steadily to a small adult size. There is no point in the growth curve where housing becomes a problem.

Willing feeders in a small body

Which is exactly why overfeeding is the risk: the appetite is out of proportion to the animal.

What that size means in practice

Genuinely apartment-friendly

A small python with modest housing requirements, which is much of the appeal. The published enclosure figure is around 30 by 12 by 12 inches.

Prey stays small for life

Keepers arriving from larger pythons routinely oversize meals for Antaresia. An adult mouse suits an adult Children's python.

Common questions

How big do Children's pythons get?

They are among the smallest pythons in the hobby. The published enclosure figure of around 30 by 12 by 12 inches reflects a small adult, and mice remain appropriate prey for life.

Do Children's pythons need rats as adults?

Rarely. Mice suit most adults of this species for life, and scaling prey up because the animal is a python is a common error with Antaresia.

Are Children's pythons small enough for a flat?

Yes, which is much of their appeal. Modest housing, a small adult size and a manageable temperament make them one of the more practical pythons for limited space.