Board Thread:Questions and Answers/@comment-27867121-20180930131626/@comment-1038387-20180930143332

Her age differs per continuity. It even differs in the current continuity: in Azzarello's run, she was presented as being born in the 20th century, the lastborn of Zeus. But during Darkseid War, both she and Jason were born in the Hellenistic period.

Amazons are practically ageless, though they can die of illness and/or wounds. This is tied to Themyscira; the Amazons of Bana-Mighdall do not have it. Wonder Woman, as a mystical clay baby, is different; she would also be immortal, though unlike other Amazons, she visibly aged to reach adulthood. She has shown signs of aging - in a dream future in JLA #90 - but is just a generic adult most of the time.

In the New 52, her status as a demigoddess gives her immortality.