Enrollment
317
High
DISTRICT 131 · STATE 838
SCHOOL COMMUNITY·RIVER DELTA JOINT UNIFIED·NCES 063311005125
Rio Vista High
410 South Fourth St., Rio Vista, CA 94571 · (707) 374-6336 · Solano County
GRADES 09–12HIGH31-TOWNTITLE IREGULAR SCHOOL317 STUDENTS
F
allk12 Grade
Scored higher than 2% of California public high schools
- FTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- FBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- C+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 high schools
Student : Teacher
16.8:1
19 FTE teachers
DISTRICT 10.8:1 · STATE 18.2:1
Free / Reduced Lunch
72%
228 students
DISTRICT 79% · STATE 65%
Community
0
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 | 69 | 22% |
| Grade 10 | 88 | 28% |
| Grade 11 | 71 | 22% |
| Grade 12 | 89 | 28% |
Student demographics
60%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
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
36.2%
CA avg 49.1% . -9.8pp since 2014
Math
14.5%
CA avg 37.7% . -0.5pp since 2014
What this means: On the CAASPP, California's statewide test, about 36 of every 100 students at this school read and write at grade level and about 14 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 10 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 | 13.0% | 23.2% | 24.6% | 39.1% |
| Math | 1.4% | 13.0% | 13.0% | 72.5% |
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 | 36.2% | 14.5% |
| 2023-24 | 3.7% | 7.3% |
| 2022-23 | 31.7% | 11.0% |
| 2021-22 | 45.2% | 6.3% |
| 2018-19 | 40.7% | 13.0% |
| 2017-18 | 43.5% | 17.4% |
| 2016-17 | 61.9% | 30.2% |
| 2015-16 | 66.0% | 23.0% |
| 2014-15 | 46.0% | 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
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
15.4%
composite math + reading, all grades
Predicted
37.4%
based on CA schools with similar FRL share
Beats by
-22.0pp
below demographic expectation
What this means: About 15% of students here test proficient in math and reading, below the roughly 37% typical for California schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
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 Rio Vista High
Rio Vista High's state test result (15.4% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Rio Vista High this school | 317 | 71.9% | 15.4% |
| Vasquez High Acton | 394 | 68.3% | 24.6% |
| Willows High Willows | 423 | 70.4% | 32.5% |
| Frazier Mountain High Lebec | 244 | 74.6% | 40.0% |
| Denair High Denair | 306 | 75.2% | 22.1% |
| Clear Lake High Lakeport | 335 | 77.3% | 23.3% |
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 Rio Vista High ranks
Among high schools| Measure | This school | In California | In Solano County |
|---|---|---|---|
| State test proficiency ranked highest first | 15.4% | #1,027 of 1,052 | #13 of 14 |
| Math proficiency ranked highest first | 14.5% | #851 of 1,056 ▲ 137 | #12 of 14 ▲ 1 |
| Reading proficiency ranked highest first | 36.2% | #944 of 1,056 ▲ 112 | #9 of 14 ▲ 5 |
| 3-year test score change ranked biggest drop first | -0.4pp | #359 of 1,044 | #7 of 14 |
| Enrollment ranked largest first | 317 | #1,188 of 2,093 | #15 of 26 |
| Students per teacher ranked fewest first | 16.8:1 | #199 of 1,352 | #1 of 16 |
| Diversity index ranked most diverse first | 60.3% | #403 of 1,351 | #12 of 16 |
| Free and reduced lunch ranked highest share first | 71.9% | #825 of 1,575 | #7 of 19 |
| Enrollment change since 2017-18 ranked steepest decline first | -17.7% | #226 of 802 | #3 of 11 |
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
317
-72 (-19%) vs 2020
+3% since 1990-91, when it was 309
Student : Teacher
16.8:1
was 16.2:1
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 | 317 | 18.9 | 16.8:1 | 72% (228) |
| 2023-24 | 350 | 21.1 | 16.6:1 | 73% (254) |
| 2022-23 | 367 | 22.2 | 16.6:1 | 50% (183) |
| 2020-21 | 389 | 24 | 16.2:1 | 47% (184) |
| 2017-18 | 385 | 20.8 | 18.5:1 | 49% (188) |
| 2015-16 | 381 | 16 | 23.8:1 | 45% (173) |
| 2010-11 | 318 | N/A | N/A | 42% (132) |
| 2000-01 | 448 | 20 | 22.4:1 | 12% (52) |
| 1990-91 | 309 | 19 | 16.3:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Rio Vista High.
Since 2017-18: students down 18% (385 to 317); teachers down 9% (20.8 to 18.9).
About Rio Vista High
Rio Vista High is a high school in Rio Vista, California, and it is part of River Delta Joint Unified. The school covers grades 9 through 12 and reported 317 students in 2024-25. On average, high schools in California enroll around 838, and this school is 62% below that mark.
River Delta Joint Unified is made up of 11 schools with 1,705 students in all.
About 52% of the student body at Rio Vista High is Hispanic. Other reported shares: 34% White, 8% multiracial, and 3% Black. Solano County's residents are about 30% Hispanic, 22 points below the school's share. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 60%.
The school's 18.9 full-time-equivalent teachers translate to a student-to-teacher ratio of 16.8:1. Statewide, high schools in California average 18.2:1. Income data for the school show 72% of students eligible for free or reduced-price lunch. By comparison, the figure for public schools in Solano County is 60%.
Rio Vista High earns an F on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 2% of California public high schools.
Rio Vista High trails its predicted average proficiency rate across its state test results by 22.0 points (15.4% versus 37.4%), a bottom-10% result in California on BeatsExpectations.
Five-year Census Bureau estimates for Solano County show that median household income comes to about $100,401, a bachelor's degree or higher is held by about 29% of adults, and the share of residents below the poverty line is 7%. Solano County counts 110 public schools with about 60,765 students.
Riverview Middle is the nearest public school to Rio Vista High, about 0.2 miles away. There are 4 other public schools within five miles. Nearby schools average 31.9% on proficiency, and Rio Vista High is below that at 15.4%.
In the federal locale system, Rio Vista High is coded Town: Fringe, for schools in a town close to an urbanized area.
Over the 4 years from 2020-21 to 2024-25, enrollment fell 19%.
This page collects posts and questions about Rio Vista High, such as fundraisers, report cards, and school supplies. Current and former families are welcome to add their experience.
Solano County at a glance
View full county profilePopulation
451,918
Census ACS
Median income
$100,401
Household, ACS
Bachelor's+
29%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
110
60,765 students
Quick facts
Related schools
Other schools in River Delta Joint Unified
- D. H. White ElementaryElementary · 432 students
- Delta HighHigh · 196 students
- Isleton ElementaryElementary · 188 students
- Clarksburg MiddleMiddle · 171 students
- Riverview MiddleMiddle · 160 students
- Walnut Grove ElementaryElementary · 131 students
Other schools in Rio Vista
- D. H. White ElementaryElementary · 432 students
- Riverview MiddleMiddle · 160 students
- River Delta High/Elementary (Alternative)Combined · 18 students
Other Rio Vista High schools
One other US public school is named Rio Vista High. Rio Vista High is the largest of the 2.
- Rio Vista High SchoolRIO VISTA, TX · 296 students
Nearby schools
- Riverview Middle0.2 mi · 160
- River Delta High/Elementary (Alternative)0.2 mi · 18
- D. H. White Elementary0.8 mi · 432
- Isleton Elementary4.8 mi · 188
- Vintage Parkway Elementary10.5 mi · 481
- Orchard Park10.9 mi · 751
Frequently asked questions
About Rio Vista HighWhat is the total enrollment at Rio Vista High?
Rio Vista High enrolls approximately 317 students in grades 09-12.
What grades does Rio Vista High serve?
Rio Vista High serves grades 09-12.
How many teachers does Rio Vista High have?
Rio Vista High employs 19 FTE teachers, for a student-to-teacher ratio of 16.8:1.
How diverse is Rio Vista High?
Rio Vista High reports a student body of 34% White, 52% Hispanic, 3% Black, 2% Asian, 8% Two or more.
Who oversees Rio Vista High?
Rio Vista High is overseen by River Delta Joint Unified in Solano County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.