Is Castle Hill High School a good school?

Yes, I've been thinking about this school as well for my child. People have been moving into the Knightsbridge area solely to get into the catchment areas for both Samuel Gilbert primary and Castle Hill high. I moved my child from a nearby private school which wasn't performing as well as these schools.

I currently go to castle hill high and in grade 8, 3 people have had intercourse, 5 have had alcohol and1 has had drugs found in their bag.

I went to Castle Hill High 35 years ago and it was a good school then.. From what I hear it is still a good school and would send my kids there...

it certainly is. according to the my schools website (http://www.myschool.edu.au) 43% of students are in the top quarter - well above average for NSW!