(Please note that the all-time boys high school basketball leaders in California may change over time due to ongoing seasons and updated statistics, so it is recommended to check official sources for the latest information)
Scoring:
1. Michael O'Connell (Bishop O'Dowd High School)- 2,947 points
2. Jason Kidd (St. Joseph Notre Dame High School)- 2,661 points
3. Tyus Edney (Bishop O'Dowd High School) - 2,618 points
4. Duane McLaughlin (Bishop Montgomery High School) - 2,587 points
5. Lee Anderson (Long Beach Poly High School)- 2,487 points
Assists:
1. Jason Kidd (St. Joseph Notre Dame High School) - 1,076 assists
2. Damon Stoudamire (Wilson High School)- 1,056 assists
3. Tyus Edney (Bishop O'Dowd High School)- 1,036 assists
4. Rod Foster (Fremont High School)- 992 assists
5. John Stockton (Gonzaga Prep High School)- 976 assists
Rebounds:
1. Michael O'Connell (Bishop O'Dowd High School)- 1,833 rebounds
2. L.G. Williams (St. Joseph Notre Dame High School)- 1,763 rebounds
3. Mark Macon (Artesia High School)- 1,636 rebounds
4. Joe Burton (La Mesa High School)- 1,486 rebounds
5. Duane McLaughlin (Bishop Montgomery High School)- 1,402 rebounds
Note: These statistics are updated as of my last knowledge update in December 2022 I recommend checking the latest official sources such as CIF (California Interscholastic Federation) or reputable basketball websites for the most current information.