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If you had an hour of school board time for Arroyo Grande High, what would you bring up?
Community prompt from u/allk12. Replies below.
Enrollment
2,012
High
DISTRICT 811 · STATE 838
SCHOOL COMMUNITY·LUCIA MAR UNIFIED·NCES 062308003516
Arroyo Grande High
495 Valley Rd., Arroyo Grande, CA 93420 · (805) 474-3200 · San Luis Obispo County
GRADES 09–12HIGH23-SUBURBTITLE IREGULAR SCHOOL2,012 STUDENTS
B+
allk12 Grade
Scored higher than 71% of California public high schools
- B+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- A+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
21.0:1
96 FTE teachers
DISTRICT 17.5:1 · STATE 18.2:1
Free / Reduced Lunch
47%
950 students
DISTRICT 61% · 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 8 | 1 | 0% |
| Grade 9 | 526 | 26% |
| Grade 10 | 488 | 24% |
| Grade 11 | 466 | 23% |
| Grade 12 | 531 | 26% |
Student demographics
59%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 58% · 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
69.8%
CA avg 49.1% . +22.8pp since 2014
Math
36.5%
CA avg 37.7% . +18.5pp since 2014
What this means: On the CAASPP, California's statewide test, about 70 of every 100 students at this school read and write at grade level and about 37 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 23 points since 2014, while math scores are up about 19 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 40.8% | 29.0% | 15.9% | 14.3% |
| Math | 16.3% | 20.2% | 22.1% | 41.4% |
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 | 69.8% | 36.5% |
| 2023-24 | 63.8% | 31.9% |
| 2022-23 | 63.5% | 30.2% |
| 2021-22 | 57.0% | 24.1% |
| 2018-19 | 54.6% | 33.9% |
| 2017-18 | 62.9% | 33.3% |
| 2016-17 | 58.4% | 38.1% |
| 2015-16 | 51.0% | 35.0% |
| 2014-15 | 47.0% | 18.0% |
% 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
50.5%
composite math + reading, all grades
Predicted
51.9%
based on CA schools with similar FRL share
Beats by
-1.4pp
below demographic expectation
What this means: About 51% of students here test proficient in math and reading, compared with the roughly 52% 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 Arroyo Grande High
Arroyo Grande High's state test result (50.5% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Arroyo Grande High this school | 2,012 | 47.2% | 50.5% |
| Murrieta Valley High Murrieta | 2,104 | 46.7% | 59.9% |
| El Capitan High Lakeside | 1,810 | 52.2% | 38.0% |
| Newport Harbor High Newport Beach | 2,084 | 42.7% | 55.6% |
| Casa Grande High Petaluma | 1,653 | 48.6% | 47.3% |
| Dos Pueblos Senior High Goleta | 2,149 | 43.9% | 57.4% |
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 Arroyo Grande High ranks
Among high schools| Measure | This school | In California | In San Luis Obispo County |
|---|---|---|---|
| State test proficiency ranked highest first | 50.5% | #311 of 1,052 | #5 of 10 |
| Math proficiency ranked highest first | 36.5% | #322 of 1,056 ▲ 19 | #4 of 10 ▲ 1 |
| Reading proficiency ranked highest first | 69.8% | #252 of 1,056 ▲ 108 | #3 of 10 ▲ 2 |
| 3-year test score change ranked biggest gain first | +12.6pp | #72 of 1,044 | #1 of 10 |
| Enrollment ranked largest first | 2,012 | #284 of 2,093 | #1 of 22 |
| Students per teacher ranked fewest first | 21.0:1 | #685 of 1,352 | #7 of 9 |
| Diversity index ranked most diverse first | 58.5% | #450 of 1,351 | #1 of 9 |
| Free and reduced lunch ranked highest share first | 47.2% | #1,200 of 1,575 | #9 of 13 |
| Enrollment change since 2017-18 ranked steepest decline first | -2.8% | #716 of 802 | #5 of 6 |
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
2,012
+6 (+0%) vs 2020
-5% since 1990-91, when it was 2,126
Student : Teacher
21.0:1
was 19.9:1
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 | 2,012 | 96 | 21.0:1 | 47% (950) |
| 2023-24 | 1,976 | 97.5 | 20.3:1 | 49% (964) |
| 2022-23 | 1,991 | 99.2 | 20.1:1 | 47% (945) |
| 2020-21 | 2,006 | 101 | 19.9:1 | 52% (1,038) |
| 2017-18 | 2,071 | 102.3 | 20.2:1 | 36% (755) |
| 2015-16 | 2,205 | 102 | 21.6:1 | 39% (869) |
| 2010-11 | 2,172 | N/A | N/A | 37% (804) |
| 2000-01 | 3,212 | 140 | 22.9:1 | 25% (811) |
| 1990-91 | 2,126 | 106 | 20.1:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Arroyo Grande High.
Since 2017-18: students down 3% (2,071 to 2,012); teachers down 6% (102.3 to 96).
About Arroyo Grande High
Arroyo Grande High is a large high school based in Arroyo Grande, California. It offers grades 9 through 12 and has 2,012 students enrolled. It has 140% more students than the average for high schools in California (about 838).
The Lucia Mar Unified system has 19 schools and 9,590 students.
At Arroyo Grande High, White students make up the biggest share, 48%. Enrollment also includes 42% Hispanic, 6% multiracial, and 3% Asian. Among people living in San Luis Obispo County, the White share is about 69%. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 59%.
Teacher count: 96 full-time equivalents. Student-to-teacher ratio: 21.0:1. The gap from the 18.2:1 average for high schools in California is 2.8 students per teacher. Eligibility for free or reduced-price lunch, often used to gauge student poverty, is 47%.
On the allk12 Grade, Arroyo Grande High lands at B+, ahead of 71% of California public high schools.
Arroyo Grande High posts an average proficiency rate across its state test results of 50.5%, compared with a predicted 51.9%. It is not in the top or bottom 10% of California schools on BeatsExpectations.
American Community Survey estimates for San Luis Obispo County show that the median household earns about $97,446 a year, the share of adults with a bachelor's degree or higher is 40%, and about 6% of people live in poverty. San Luis Obispo County has 83 public schools with about 33,339 students, including Arroyo Grande High.
Arroyo Grande High's nearest public school is Harloe Elementary (about 0.7 miles). The count of other public schools within five miles is at least 8. Compared with its nearest neighbors, Arroyo Grande High ranks 4th of 9 on average proficiency.
Federal records code the school's setting as Suburb: Small.
There was little change in enrollment from 2020-21 (2,006) to 2024-25 (2,012). Federal data show the ratio rising from 19.9:1 to 21.0:1.
You can use this page to share news and ask questions about fundraisers, report cards, and school supplies. Current and former families are welcome to add their experience.
San Luis Obispo County at a glance
View full county profilePopulation
281,555
Census ACS
Median income
$97,446
Household, ACS
Bachelor's+
40%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
83
33,339 students
Quick facts
Related schools
Other schools in Lucia Mar Unified
- Nipomo HighHigh · 819 students
- Harloe ElementaryElementary · 619 students
- Dana ElementaryElementary · 612 students
- Lange (Dorothea) ElementaryElementary · 577 students
- Ocean View ElementaryElementary · 547 students
- Paulding MiddleMiddle · 544 students
Other schools in Arroyo Grande
- Harloe ElementaryElementary · 619 students
- Ocean View ElementaryElementary · 547 students
- Paulding MiddleMiddle · 544 students
- Mesa MiddleMiddle · 474 students
- Branch ElementaryElementary · 261 students
- Pacific View AcademyCombined · 114 students
Nearby schools
- Harloe Elementary0.7 mi · 619
- Paulding Middle0.9 mi · 544
- Ocean View Elementary1.2 mi · 547
- Fairgrove Elementary1.5 mi · 365
- Oceano Elementary2.0 mi · 377
- Grover Beach Elementary2.1 mi · 368
Frequently asked questions
About Arroyo Grande HighHow large is Arroyo Grande High?
Arroyo Grande High enrolls approximately 2,012 students in grades 09-12.
Is Arroyo Grande High an elementary, middle, or high school?
Arroyo Grande High is a high school covering grades 09-12.
How many teachers does Arroyo Grande High have?
Arroyo Grande High employs 96 FTE teachers, for a student-to-teacher ratio of 21.0:1.
What is the student diversity at Arroyo Grande High?
Student demographics at Arroyo Grande High are roughly 48% White, 42% Hispanic, 1% Black, 3% Asian, 6% Two or more.
Who oversees Arroyo Grande High?
Arroyo Grande High is overseen by Lucia Mar Unified in San Luis Obispo County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.