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Alumni: what's one memory from Ygnacio Valley High that still sticks with you?
Community prompt from u/allk12. Replies below.
Enrollment
1,059
High
DISTRICT 824 · STATE 838
SCHOOL COMMUNITY·MT. DIABLO UNIFIED·NCES 062637003986
Ygnacio Valley High
755 Oak Grove Rd., Concord, CA 94518 · (925) 685-8414 · Contra Costa County
GRADES 09–12HIGH21-SUBURBTITLE IREGULAR SCHOOL1,059 STUDENTS
F
allk12 Grade
Scored higher than 3% of California public high schools
- DTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- C-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- FThree-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
Student : Teacher
19.0:1
56 FTE teachers
DISTRICT 16.2:1 · STATE 18.2:1
Free / Reduced Lunch
81%
863 students
DISTRICT 56% · STATE 65%
Community
6
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 258 | 24% |
| Grade 10 | 261 | 25% |
| Grade 11 | 293 | 28% |
| Grade 12 | 247 | 23% |
Student demographics
38%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 71% · 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
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
29.1%
CA avg 49.1% . -8.9pp since 2014
Math
11.8%
CA avg 37.7% . -3.2pp since 2014
What this means: On the CAASPP, California's statewide test, about 29 of every 100 students at this school read and write at grade level and about 12 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are down about 9 points since 2014, while math scores are down about 3 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 7.7% | 21.5% | 28.7% | 42.1% |
| Math | 3.7% | 8.1% | 20.7% | 67.5% |
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 | 29.1% | 11.8% |
| 2023-24 | 39.1% | 8.1% |
| 2022-23 | 36.1% | 6.4% |
| 2021-22 | 47.5% | 11.1% |
| 2020-21 | 33.5% | 14.4% |
| 2018-19 | 34.1% | 13.3% |
| 2017-18 | 29.2% | 13.5% |
| 2016-17 | 31.3% | 7.6% |
| 2015-16 | 40.0% | 15.0% |
| 2014-15 | 38.0% | 15.0% |
% 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
22.0%
composite math + reading, all grades
Predicted
31.8%
based on CA schools with similar FRL share
Beats by
-9.8pp
below demographic expectation
What this means: About 22% of students here test proficient in math and reading, compared with the roughly 32% 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 Ygnacio Valley High
Ygnacio Valley High's state test result (22.0% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Ygnacio Valley High this school | 1,059 | 81.5% | 22.0% |
| Seaside High Seaside | 1,073 | 84.4% | 22.5% |
| Northview High Covina | 1,247 | 78.9% | 36.4% |
| Cobalt Institute of Math and Science Victorville | 1,058 | 80.0% | 60.2% |
| Erma Duncan Polytechnical High Fresno | 1,186 | 86.6% | 39.3% |
| Montgomery Senior High San Diego | 1,568 | 80.7% | 38.3% |
Matched among California high 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 Ygnacio Valley High ranks
Among high schools| Measure | This school | In California | In Contra Costa County |
|---|---|---|---|
| State test proficiency ranked highest first | 22.0% | #973 of 1,052 | #24 of 28 |
| Math proficiency ranked highest first | 11.8% | #925 of 1,056 ▲ 48 | #25 of 28 ▲ 1 |
| Reading proficiency ranked highest first | 29.1% | #1,008 of 1,056 ▼ 123 | #27 of 28 ▼ 5 |
| 3-year test score change ranked biggest drop first | -8.8pp | #56 of 1,044 | #2 of 28 |
| Enrollment ranked largest first | 1,059 | #745 of 2,093 | #24 of 54 |
| Students per teacher ranked fewest first | 19.0:1 | #394 of 1,352 | #6 of 41 |
| Diversity index ranked most diverse first | 37.6% | #884 of 1,351 | #35 of 41 |
| Free and reduced lunch ranked highest share first | 81.5% | #572 of 1,575 | #13 of 45 |
| Enrollment change since 2017-18 ranked steepest decline first | -15.0% | #296 of 802 | #11 of 27 |
Ranked against other public high 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
1,059
-206 (-16%) vs 2020
-35% since 1990-91, when it was 1,641
Student : Teacher
19.0:1
was 20.1:1
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 | 1,059 | 55.8 | 19.0:1 | 81% (863) |
| 2023-24 | 1,111 | 59.9 | 18.6:1 | 86% (957) |
| 2022-23 | 1,172 | 61.7 | 19.0:1 | 81% (955) |
| 2020-21 | 1,265 | 63 | 20.1:1 | 67% (853) |
| 2017-18 | 1,246 | 62.1 | 20.1:1 | 73% (913) |
| 2015-16 | 1,139 | 56 | 20.3:1 | 75% (851) |
| 2010-11 | 1,301 | N/A | N/A | 48% (619) |
| 2000-01 | 1,728 | 77 | 22.4:1 | 27% (461) |
| 1990-91 | 1,641 | 68 | 24.1:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Ygnacio Valley High.
Since 2017-18: students down 15% (1,246 to 1,059); teachers down 10% (62.1 to 55.8).
About Ygnacio Valley High
This page covers Ygnacio Valley High, a mid-sized high school in Concord, California. The school covers grades 9 through 12 and reported 1,059 students in 2024-25. Across high schools in California, the average enrollment is about 838.
Ygnacio Valley High is run by Mt. Diablo Unified, whose 50 schools enroll 29,210 students.
The student body at Ygnacio Valley High is 78% Hispanic. The rest of enrollment is 8% Asian, 5% White, 5% multiracial, and 3% Black. Among all residents of Contra Costa County, the Hispanic share is about 28%. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 38%.
Ygnacio Valley High has 55.8 full-time-equivalent teachers, for a student-to-teacher ratio of about 19.0:1. High schools in California have an average ratio of 18.2:1. Eligibility for free or reduced-price lunch, often used to gauge student poverty, is 81%. The rate at public schools in Contra Costa County averages 45%, lower than here.
Ygnacio Valley High holds an F allk12 Grade, placing it above 3% of California public high schools.
Compared with California schools that have similar shares of low-income students, Ygnacio Valley High's results are 9.8 points below predicted: 22.0% against 31.8%.
In Contra Costa County, where the school is located, the median household earns about $127,229 a year, 45% of adults hold a bachelor's degree or higher, and about 6% of people live in poverty. Counting Ygnacio Valley High, Contra Costa County has 280 public schools.
Ygnacio Valley High's closest public school neighbor is Contra Costa School of Performing Arts, about 0.3 miles away. The five-mile area around Ygnacio Valley High holds at least 8 other public schools. Ygnacio Valley High ranks 6th of 8 among nearby schools on average proficiency, with 22.0% against a local average of 50.9%.
Federal data place Ygnacio Valley High in the Suburb: Large locale, which means it is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
By 2024-25, enrollment had dropped to 1,059, from 1,265 in 2020-21. The ratio was 20.1:1 in 2020-21 and 19.0:1 in 2024-25.
This community page is for conversations about athletics, class schedules, and weather closures. You can also rate the school on this page.
Contra Costa County at a glance
View full county profilePopulation
1,165,012
Census ACS
Median income
$127,229
Household, ACS
Bachelor's+
45%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
280
167,423 students
Quick facts
Related schools
Other schools in Mt. Diablo Unified
- College Park HighHigh · 1,948 students
- Northgate HighHigh · 1,546 students
- Mt. Diablo HighHigh · 1,397 students
- Concord HighHigh · 1,137 students
- Foothill MiddleMiddle · 1,005 students
- Sequoia MiddleMiddle · 882 students
Other schools in Concord
- Clayton Valley Charter HighHigh · 2,373 students
- Mt. Diablo HighHigh · 1,397 students
- Concord HighHigh · 1,137 students
- El Dorado MiddleMiddle · 861 students
- Meadow Homes ElementaryElementary · 732 students
- Oak Grove MiddleMiddle · 681 students
Nearby schools
- Contra Costa School of Performing Arts0.3 mi · 285
- Oak Grove Middle0.5 mi · 681
- Woodside Elementary0.6 mi · 289
- Valle Verde Elementary0.7 mi · 485
- Bancroft Elementary0.7 mi · 672
- Foothill Middle1.1 mi · 1,005
Frequently asked questions
About Ygnacio Valley HighWhat is the total enrollment at Ygnacio Valley High?
Ygnacio Valley High enrolls approximately 1,059 students in grades 09-12.
What grades does Ygnacio Valley High serve?
Ygnacio Valley High serves grades 09-12.
How many teachers does Ygnacio Valley High have?
Ygnacio Valley High employs 56 FTE teachers, for a student-to-teacher ratio of 19.0:1.
How diverse is Ygnacio Valley High?
Ygnacio Valley High reports a student body of 5% White, 78% Hispanic, 3% Black, 8% Asian, 5% Two or more.
What district is Ygnacio Valley High in?
Ygnacio Valley High is part of Mt. Diablo Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.