Before the 2023 census, the settlement had a larger boundary, covering 7.63 km2 (2.95 sq mi).

Although some people chose not to answer the census's question about religious affiliation, 53.6% had no religion, 35.7% were Christian, 0.2% had Māori religious beliefs, 0.7% were Muslim, 0.3% were Buddhist and 0.9% had other religions.

[7] Near Lepperton is Kairoa Pa, an historic centre for local Maori settlement.

It is also an entry point for the Whakaahurangi track to Ketemarae Pa near Normanby.

This track linked northern and southern Taranaki before British settlement.

[14] Even the Dogs Have Forgotten to Bark A 284 A4 page fully indexed comprehensive history of Lepperton, Sentry Hill and Waiongana.

Author PT Wilson published 2012 ISBN 978-0-473-21026-7 Available in most Taranaki libraries.