Independent · Combined · Arcadia

Northholm Grammar School

698

Students

395 boys · 303 girls

K-12

Year range

1137

ICSEA

avg = 1000

Students from non-English speaking background

ICSEA — socio-educational intake context 1137

ICSEA reflects the socio-educational background of students at this school — it is an intake measure, not a teaching quality or outcomes ranking. National average is 1000. Range is roughly 500–1300. This school's ICSEA places it above 93% of Australian schools.

Suburb Arcadia 2159

Local government area Hornsby

Remoteness Inner Regional

Sector Independent

School type Combined

Indigenous students 0%

Statistical area (SA2) Galston - Laughtondale

Official website www.northholm.nsw.edu.au

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Catchment zone shown where matched to official NSW government data.

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Other schools in Galston - Laughtondale

School Sector Years Enrolment ICSEA

Arcadia Public School Government K-6 60 1065

Galston High School Government 7-12 570 1044

Galston Public School Government K-6 147 1042

Source: ACARA School Profile & School Location 2025 (Data Access Program). VIC and NSW government catchment zones from DET School Zones 2026 and NSW DoE School Intake Zones 2026. ICSEA is a socio-educational intake index — it measures student background, not teaching quality or outcomes. Methodology →