Tomoana statistical area, which includes both Tomoana and Waipatu, covers 3.26 km2 (1.26 sq mi)[1] and had an estimated population of 430 as of June 2024,[2] with a population density of 132 people per km2.

The percentage of people born overseas was 19.6, compared with 27.1% nationally.

Although some people chose not to answer the census's question about religious affiliation, 43.1% had no religion, 44.1% were Christian, 4.9% had Māori religious beliefs, 1.0% were Buddhist and 2.9% had other religions.

[3] The community has two marae, belonging to the Ngāti Kahungunu hapū of Ngāti Hāwea and Ngati Hōri:[4] Ruahāpia Marae and Karaitiana Takamoana meeting house, and Waipatu Marae and Heretaunga meeting house.

[5] In October 2020, the Government committed $6,020,910 from the Provincial Growth Fund to upgrade a group of 18 marae, including both Ruahāpia and Waipatu.