AdvertisementNationalNSWHSC Turning HSC band 5s into 6s: How this Sydney school raised the bar for every student Christopher Harris and Nigel Gladstone August 6, 2026 — 7:30pm Save You have reached your maximum number of saved items. AdvertisementCrestwood has lifted its average HSC score across subjects to 80 last year, outperforming its average score over the past three years. Students from last year’s Crestwood High HSC class, which had an average score of more than 79 across all subjects. Lake Macquarie High, south of Newcastle, recorded a 10 percentage point increase to its average score between 2023 and 2025. This analysis of HSC data uses precise average subject marks, contained in public high schools’ annual reports, across all subjects, released in July.