Onepoto is a locality of Porirua City in New Zealand. It is bounded to the north by Whitireia Park, a large park which is slowly being returned to native bush, and to the east by the Porirua Harbour.

Onepoto covers a land area of 2.24 km², including an area of coast.

The New Zealand Ministry for Culture and Heritage translates Onepoto as "short beach".

Onepoto statistical area covers 2.24 km (0.86 sq mi). It had an estimated population of 1,990 as of June 2024, with a population density of 888.39 people per km.

Historical population

Year	Pop.	±% p.a.
2006	1,845	—
2013	1,800	−0.35%
2018	1,917	+1.27%
Source:

Onepoto had a population of 1,917 at the 2018 New Zealand census, an increase of 117 people (6.5%) since the 2013 census, and an increase of 72 people (3.9%) since the 2006 census. There were 624 households, comprising 936 males and 978 females, giving a sex ratio of 0.96 males per female. The median age was 35.3 years (compared with 37.4 years nationally), with 468 people (24.4%) aged under 15 years, 345 (18.0%) aged 15 to 29, 882 (46.0%) aged 30 to 64, and 222 (11.6%) aged 65 or older.

Ethnicities were 70.1% European/Pākehā, 32.2% Māori, 18.0% Pasifika, 4.5% Asian, and 3.0% other ethnicities. People may identify with more than one ethnicity.

The percentage of people born overseas was 17.2, compared with 27.1% nationally.

Although some people chose not to answer the census's question about religious affiliation, 52.7% had no religion, 35.1% were Christian, 1.7% had Māori religious beliefs, 0.2% were Hindu, 0.6% were Muslim, 0.8% were Buddhist and 1.4% had other religions.

Of those at least 15 years old, 333 (23.0%) people had a bachelor's or higher degree, and 249 (17.2%) people had no formal qualifications. The median income was $36,800, compared with $31,800 nationally. 270 people (18.6%) earned over $70,000 compared to 17.2% nationally. The employment status of those at least 15 was that 840 (58.0%) people were employed full-time, 171 (11.8%) were part-time, and 63 (4.3%) were unemployed.

In 2018, 11.9% of the workforce worked in healthcare, 11.3% worked in construction, 10.7% worked in education, 4.5% worked in manufacturing, 4.5% worked in transport and 3.9% worked in hospitality.

As of 2018, among those who commute to work, 70.9% drove a car, 4.7% rode in a car, 0.9% used a bike, and 0.9% walked or ran. No one used public transport.

41°06′50″S 174°50′53″E / 41.1139°S 174.8481°E / -41.1139; 174.8481