Community prompt from u/allk12. Replies below.
Mira Costa High
- ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- CBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- BThree-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public high schools
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 572 | 23% |
| Grade 10 | 627 | 25% |
| Grade 11 | 621 | 25% |
| Grade 12 | 653 | 26% |
School pathway
Test scores
CAASPP 2024-25 . % met or exceeded standardWhat this means: On the CAASPP, California's statewide test, about 81 of every 100 students at this school read and write at grade level and about 62 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are up about 6 points since 2014, while math scores are up about 10 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 49.7% | 31.5% | 12.0% | 6.9% |
| Math | 35.7% | 26.4% | 20.2% | 17.8% |
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 81.2% | 62.0% |
| 2023-24 | 76.1% | 54.1% |
| 2022-23 | 67.5% | 58.5% |
| 2021-22 | 74.7% | 60.0% |
| 2020-21 | 89.9% | 69.6% |
| 2018-19 | 82.1% | 68.3% |
| 2017-18 | 82.8% | 71.5% |
| 2016-17 | 85.4% | 66.7% |
| 2015-16 | 76.0% | 65.0% |
| 2014-15 | 75.0% | 52.0% |
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 68% of students here test proficient in math and reading, compared with the roughly 75% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.
Schools most like Mira Costa High
Mira Costa High's state test result (68.4% proficient) is higher than 3 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Mira Costa High this school | 2,473 | 7.0% | 68.4% |
| San Ramon Valley High Danville | 2,036 | 5.7% | 64.5% |
| Oak Ridge High El Dorado Hills | 2,346 | 9.5% | 68.1% |
| Los Gatos High Los Gatos | 1,914 | 6.8% | 72.5% |
| Redwood High Larkspur | 1,722 | 8.2% | 65.7% |
| Acalanes High Lafayette | 1,256 | 7.3% | 75.0% |
Where Mira Costa High ranks
Among high schools| Measure | This school | In California | In Los Angeles County |
|---|---|---|---|
| State test proficiency ranked highest first | 68.4% | #95 of 1,052 | #26 of 228 |
| Math proficiency ranked highest first | 62.0% | #76 of 1,056 ▲ 45 | #17 of 229 ▲ 11 |
| Reading proficiency ranked highest first | 81.2% | #88 of 1,056 ▲ 51 | #24 of 229 ▲ 9 |
| 3-year test score change ranked biggest gain first | +4.2pp | #389 of 1,044 | #115 of 229 |
| Enrollment ranked largest first | 2,473 | #110 of 2,093 | #22 of 486 |
| Students per teacher ranked fewest first | 24.6:1 | #1,175 of 1,352 | #319 of 358 |
| Diversity index ranked most diverse first | 59.8% | #414 of 1,351 | #61 of 359 |
| Free and reduced lunch ranked highest share first | 7.0% | #1,563 of 1,575 | #393 of 396 |
| Enrollment change since 2017-18 ranked steepest decline first | -2.7% | #719 of 802 | #210 of 227 |
4-year change
SY 2020-21 vs SY 2024-25Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 2,473 | 100.3 | 24.6:1 | 7% (173) |
| 2023-24 | 2,568 | 108 | 23.8:1 | 7% (177) |
| 2022-23 | 2,497 | 107.2 | 23.3:1 | 6% (153) |
| 2020-21 | 2,463 | 96 | 25.7:1 | 6% (138) |
| 2017-18 | 2,541 | 101.1 | 25.1:1 | 6% (155) |
| 2015-16 | 2,437 | 105 | 23.2:1 | 5% (134) |
| 2010-11 | 2,359 | N/A | N/A | 5% (109) |
| 2000-01 | 2,246 | 96 | 23.4:1 | 9% (209) |
Since 2017-18: students down 3% (2,541 to 2,473); teachers down 1% (101.1 to 100.3).
About Mira Costa High
Mira Costa High is a high-enrollment high school for students in Manhattan Beach, California. Enrollment is 2,473 students in 2024-25, and the school serves grades 9 through 12. The average for high schools in California is about 838 students, so this school is 195% bigger than average.
Federal data list 7 schools in Manhattan Beach Unified, with 5,887 students enrolled.
At Mira Costa High, White students make up 59% of the student body. Next come 15% Hispanic, 13% multiracial, and 11% Asian. The county population is about 31% White. The school's diversity index is 60%, meaning two students picked at random have a 60% chance of belonging to different racial or ethnic groups.
Federal records show a student-to-teacher ratio of 24.6:1 at Mira Costa High, with 100.3 full-time-equivalent teachers. This ratio sits 6.5 above the 18.2:1 average for high schools in California. Free and reduced-price lunch eligibility, a common measure of family income, is 7%. By comparison, the figure for public schools in Los Angeles County is 70%.
Mira Costa High is graded B+ by allk12, scoring above 69% of California public high schools once test results, poverty-adjusted performance, and the recent trend are combined.
After adjusting for student poverty, Mira Costa High lands between the top and bottom 10% of California schools. Its average proficiency rate on state tests is 68.4%; the prediction is 75.4%.
In the county around the school, Los Angeles County, the median household income is $90,112, about 36% of adults have at least a bachelor's degree, and roughly 10% of residents are in poverty. Los Angeles County is home to 2,244 public schools and about 1,265,907 public school students.
Nearby, Aurelia Pennekamp Elementary is about 0.3 miles away. There are at least 8 more public schools inside five miles. Ranking the closest schools with test data puts Mira Costa High at 8th of 8.
The school's setting, by NCES definition, is Suburb: Large: in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
In 2020-21, Mira Costa High enrolled 2,463; in 2024-25, 2,473. The student-to-teacher ratio went down from 25.7:1 to 24.6:1.
Discussions about Mira Costa High may include science fairs, picture day, and bus routes. Alumni can share how the school prepared them.
Los Angeles County at a glance
View full county profileQuick facts
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