Overview
Onslow College is a state secondary (year 9-15) school in Johnsonville, Wellington. It is a co-educational school. The school has 1,193 students on the roll. Its Equity Index (EQI) is 398 (low equity need). The school has an enrolment scheme (zone). It is located in the Wellington City territorial authority.
Source: Ministry of Education (2026)
Key Facts
AuthorityState
School TypeSecondary (Year 9-15)
Co-Ed StatusCo-Educational
Enrolment SchemeYes (Zoned)
Territorial AuthorityWellington City
RegionWellington
Urban/RuralMajor urban area
Postcode6440
MoE School ID269
Student Demographics
Total Roll1,193
European/Pakeha68.7%
Maori12.3%
Pacific3.8%
Asian24.9%
Ethnicity Distribution
Source: Ministry of Education (2026)
Equity Index (EQI)
The Equity Index replaced the decile system in 2023. It measures the socio-economic context of a school's student community. A higher EQI indicates greater equity need (more disadvantaged). The national average is approximately 463.
School EQI398
National Avg463
Contextlow equity need
Source: Ministry of Education EQI (2026)