Summary:
Schools in zip code 91311 include nine schools: four elementary schools, one middle school and four high schools, with grade spans from K–5 to 7–12 and programs that include continuation and opportunity schools. The results vary widely: among schools with numeric 2025–26 scores, the spread is 63 percentage points in ELA, 66 in math and 53 in science. The most important takeaway is that this is not a uniformly strong or weak group; families will find very different academic results among the schools.
Superior Street Elementary is the clearest academic standout, leading all three 2025–26 subjects with 63% in ELA, 69% in math and 59% in science—13, 30 and 23 points above California, respectively. Chatsworth Park Elementary also exceeds the state in all three, at 57% ELA, 53% math and 43% science. Among high schools, Chatsworth Charter High scores 58% in ELA, 40% in math and 41% in science; its math result is only 1 point above the state. At the lower end, William Tell Aggeler Opportunity High reports 0% ELA and 6% math, while Stoney Point Continuation reports 9% ELA, 2% math and 5% science. These programs serve different grade spans and are not direct equivalents to comprehensive schools.
Recent changes are mixed: average ELA results across schools were essentially flat from 2024–25 to 2025–26, while math rose about 2 points and science about 4. Chatsworth Charter High improved in all three subjects, including 14 points in science, while Stoney Point Continuation declined in each. SchoolDigger’s ranking percentile rose from 80 to 85 for Superior Street, while Stoney Point’s fell from 15 to 7; these are SchoolDigger rankings, not test scores. The reported low-income measure is “Free/reduced lunch eligible,” sy 2024–2025: the three K–5 schools range from 62% to 69%, despite differing results, so this is context rather than an explanation.
Thank you for your feedback!