Enrollment
252
Middle
DISTRICT 248 · STATE 659
SCHOOL COMMUNITY·PORTOLA VALLEY ELEMENTARY·NCES 063147004881
Corte Madera
4575 Alpine Rd., Portola Valley, CA 94028 · (650) 851-1777 · San Mateo County
GRADES 04–08MIDDLE21-SUBURBREGULAR SCHOOL252 STUDENTS
A+
allk12 Grade
Scored higher than 95% of California public middle schools
- A+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- A-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- B-Three-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 middle schools
Student : Teacher
11.3:1
22 FTE teachers
DISTRICT 14.3:1 · STATE 20.7:1
Free / Reduced Lunch
7%
17 students
DISTRICT 6% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 4 | 50 | 20% |
| Grade 5 | 49 | 19% |
| Grade 6 | 51 | 20% |
| Grade 7 | 48 | 19% |
| Grade 8 | 54 | 21% |
Student demographics
57%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 56% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within Portola Valley Elementary. Attendance zones can vary; confirm enrollment with the district.
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
86.5%
CA avg 49.1% . +1.5pp since 2014
Math
83.3%
CA avg 37.7% . +0.3pp since 2014
What this means: On the CAASPP, California's statewide test, about 87 of every 100 students at this school read and write at grade level and about 83 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 2 points since 2014, while math scores have held steady.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 58.3% | 28.2% | 8.7% | 4.8% |
| Math | 66.3% | 17.1% | 10.3% | 6.3% |
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 86.5% | 83.3% |
| 2023-24 | 86.4% | 84.9% |
| 2022-23 | 86.6% | 85.6% |
| 2021-22 | 82.8% | 81.7% |
| 2020-21 | 82.1% | 78.9% |
| 2018-19 | 87.5% | 82.0% |
| 2017-18 | 82.5% | 83.4% |
| 2016-17 | 83.2% | 79.5% |
| 2015-16 | 85.0% | 82.0% |
| 2014-15 | 85.0% | 83.0% |
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
85.1%
composite math + reading, all grades
Predicted
75.6%
based on CA schools with similar FRL share
Beats by
+9.5pp
above demographic expectation
What this means: About 85% of students here test proficient in math and reading, compared with the roughly 76% 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%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Corte Madera
Corte Madera's state test result (85.1% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Corte Madera this school | 252 | 6.7% | 85.1% |
| R. Roger Rowe Middle Rancho Santa Fe | 189 | 6.3% | 82.9% |
| San Benancio Middle Salinas | 261 | 10.3% | 60.3% |
| Del Mar Middle Tiburon | 359 | 4.7% | 79.6% |
| C. T. English Middle Los Gatos | 164 | 11.0% | 71.3% |
| Willma Cavitt Junior High Granite Bay | 375 | 8.5% | 77.9% |
Matched among California middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Corte Madera ranks
Among middle schools| Measure | This school | In California | In San Mateo County |
|---|---|---|---|
| State test proficiency ranked highest first | 85.1% | #15 of 1,224 | #3 of 26 |
| Math proficiency ranked highest first | 83.3% | #17 of 1,227 ▼ 4 | #3 of 26 ▼ 1 |
| Reading proficiency ranked highest first | 86.5% | #21 of 1,227 ▼ 9 | #5 of 26 ▼ 2 |
| 3-year test score change ranked biggest gain first | +2.7pp | #543 of 1,214 | #8 of 26 |
| Enrollment ranked largest first | 252 | #1,242 of 1,377 | #25 of 26 |
| Students per teacher ranked fewest first | 11.3:1 | #1 of 1,279 | #1 of 25 |
| Diversity index ranked most diverse first | 57.3% | #492 of 1,278 | #17 of 25 |
| Free and reduced lunch ranked highest share first | 6.7% | #1,312 of 1,329 | #24 of 26 |
| Enrollment change since 2017-18 ranked steepest decline first | -26.5% | #173 of 930 | #4 of 20 |
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
252
-20 (-7%) vs 2020
+46% since 1990-91, when it was 173
Student : Teacher
11.3:1
was 11.8:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 252 | 22.3 | 11.3:1 | 7% (17) |
| 2023-24 | 258 | 22.7 | 11.4:1 | 6% (16) |
| 2022-23 | 273 | 22.5 | 12.1:1 | 7% (18) |
| 2020-21 | 272 | 23 | 11.8:1 | 6% (17) |
| 2017-18 | 343 | 25.5 | 13.4:1 | 9% (32) |
| 2015-16 | 356 | 20 | 17.8:1 | 7% (24) |
| 2010-11 | 386 | N/A | N/A | 3% (10) |
| 2000-01 | 374 | 22 | 17.0:1 | 0% (0) |
| 1990-91 | 173 | 9 | 19.2:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Corte Madera.
Since 2017-18: students down 27% (343 to 252); teachers down 13% (25.5 to 22.3).
About Corte Madera
Corte Madera is a small middle school in Portola Valley, California. The grade span is 4 through 8, and enrollment is 252 students. An average school in this group (middle schools in California) has about 659 students.
Portola Valley Elementary, which runs Corte Madera, has 2 schools and 495 students.
At 61%, White students outnumber all other groups at Corte Madera combined. It is also 18% multiracial, 13% Hispanic, and 7% Asian. San Mateo County's residents are about 38% White, 23 points below the school's share. By the diversity index, Corte Madera comes in at 57%.
The count of teachers at Corte Madera is 22.3 full-time equivalents, for a ratio of 11.3:1. Among middle schools in California, the typical ratio is 20.7:1. The school counts 17 students as eligible for free or reduced-price lunch, or 7%. That rate is below the 34% average among public schools in San Mateo County.
Measured against California public middle schools, Corte Madera receives an A+. The grade weighs proficiency most heavily, then how results compare with what the school's low-income share predicts, then the three-year change.
Corte Madera's actual average proficiency rate on state tests (85.1%) and its predicted rate (75.6%) put it outside the top and bottom 10% of California schools.
San Mateo County has about 742,340 residents, and median household income is about $158,855, a bachelor's degree or higher is held by about 54% of adults, and the poverty rate is about 4%. Federal data list 176 public schools in San Mateo County, with a combined enrollment of about 82,403.
The next-closest public school is Ormondale Elementary, about 0.9 miles away. In all, at least 8 other public schools sit within five miles of Corte Madera. Of 9 schools in the immediate area with test results, Corte Madera ranks 3rd on average proficiency.
Under the NCES locale system, Corte Madera is Suburb: Large.
The number of students dropped from 272 to 252 over 4 years.
Discussion on this page can cover sports tryouts, band and choir, and theater. Posting is open to anyone connected to the school.
San Mateo County at a glance
View full county profilePopulation
742,340
Census ACS
Median income
$158,855
Household, ACS
Bachelor's+
54%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
176
82,403 students
Quick facts
Related schools
Other schools in Portola Valley Elementary
- Ormondale ElementaryElementary · 243 students
Nearby schools
- Ormondale Elementary0.9 mi · 243
- La Entrada Middle4.1 mi · 612
- Lucille M. Nixon Elementary4.4 mi · 350
- Oak Knoll Elementary4.5 mi · 574
- Palo Alto Middle College High4.5 mi · 45
- Gardner Bullis Elementary4.6 mi · 313
Frequently asked questions
About Corte MaderaHow large is Corte Madera?
Corte Madera enrolls approximately 252 students in grades 04-08.
Is Corte Madera an elementary, middle, or high school?
Corte Madera is a middle school covering grades 04-08.
How many students per teacher at Corte Madera?
Approximately 11.3:1 students per teacher at Corte Madera.
What is the racial breakdown of students at Corte Madera?
At Corte Madera, the student body is approximately 61% White, 13% Hispanic, 1% Black, 7% Asian, 18% Two or more.
Who oversees Corte Madera?
Corte Madera is overseen by Portola Valley Elementary in San Mateo County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.