Excellent
#310 of 9,533 schools in CA
Top 3% in state
Monarch Grove Elementary
Elementary School · San Luis Coastal Unified
348 Los Osos Valley Rd., Los Osos, CA 93402
Enrollment
337
Student-Teacher
22.5:1
Score
8.9
Grades
Kindergarten – 5th
Enrollment
337
Student-Teacher
22.5:1
Score
8.9
Grades
Kindergarten – 5th
Updated
2022-23
Updated 2022-23
How this school compares
In Los Osos
#1 of 3
public schools
California elementary schools
#242 of 5,817
In district
#2 of 15
San Luis Coastal Unified
Equity
9.9 / 10
Exceptional
About Monarch Grove Elementary
Monarch Grove Elementary is a public elementary school in Los Osos, CA, part of the San Luis Coastal Unified. The school serves approximately 337 students in grades Kindergarten – 5th with a student-teacher ratio of 22.5:1. It holds a MySchoolScout rating of 8.9/10, placing it in the 96.8th percentile among CA schools — an above average rating overall.
Students demonstrate 72% proficiency in math, 32 points above the state average and 74% in reading/language arts, 29 points above the state average. The school scores particularly well in student growth (9.3/10). Located in a neighborhood with a median household income of $103,839, where 50% of adults hold a bachelor's degree or higher.
The school is situated in a fringe town setting.
What Parents Should Know
The student-teacher ratio at Monarch Grove Elementary is 22.5:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
Data not available for this school
View breakdown
Monarch Grove Elementary — Students at Monarch Grove Elementary score 76% proficient, which is above what's typical for similar communities (expected: 49%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
45.4%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 12 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 9.3/10.
How Monarch Grove Elementary Compares
See how Monarch Grove Elementary performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has improved from 72% (2019) to 75.15% (2024). Reading/ELA proficiency has improved from 72% (2019) to 76.19% (2024).
Location
348 Los Osos Valley Rd., Los Osos, CA 93402
Nearby Alternatives
Families considering Monarch Grove Elementary may also want to explore other elementary schools in the area. C L Smith Elementary (rated 9.0/10, 9.7 miles away, in nearby San Luis Obispo), with a very similar rating. Another option is Cayucos Elementary (rated 8.4/10, 10.1 miles away, in nearby Cayucos), with a comparable rating. Additionally, Baywood Elementary (rated 8.3/10, 1.3 miles away), with a comparable rating. For more schools in Los Osos, see our Los Osos schools guide .
Nearby Schools
20 within 10.5 mi| School | Distance | Rating |
|---|---|---|
| WISHING WELL SCHOOL Los Osos | 0.8 mi | 6.4 |
| Central Coast Waldorf Los Osos | 0.8 mi | — |
| Baywood Elementary Los Osos | 1.3 mi | 8.3 |
| Los Osos Middle Los Osos | 1.8 mi | 7.3 |
| Morro Bay High Morro Bay | 4.8 mi | 8.6 |
| Del Mar Elementary Morro Bay | 5.8 mi | 8.2 |
| San Luis County Special Education San Luis Obispo | 6.1 mi | — |
| San Luis Obispo County Community San Luis Obispo | 6.5 mi | 6.2 |
| Grizzly ChalleNGe Charter San Luis Obispo | 6.8 mi | 6.3 |
| San Luis Obispo County Juvenile Court San Luis Obispo | 7.3 mi | — |
| CHRIST CLASSICAL SCHOOL San Luis Obispo | 8.2 mi | 6.1 |
| Cayucos Elementary Cayucos | 10.1 mi | 8.4 |
| Laguna Middle San Luis Obispo | 9.3 mi | 7.1 |
| Bishop's Peak Elementary San Luis Obispo | 9.3 mi | 5.3 |
| C L Smith Elementary San Luis Obispo | 9.7 mi | 9.0 |
| Pacific Beach High San Luis Obispo | 10.0 mi | 4.7 |
| Pacheco Elementary San Luis Obispo | 9.8 mi | 7.8 |
| Bellevue-Santa Fe Charter San Luis Obispo | 11.3 mi | 6.0 |
| Lindamood-Bell Academy San Luis Obispo | 10.4 mi | — |
| OLD MISSION SCHOOL San Luis Obispo | 10.5 mi | 4.8 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 93402 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$103,839
Median Home Value
$729,200
Median Rent
$1,909/mo
Population
15,085
College Educated
50.1%
Homeownership
69.7%
Avg Commute
20.9 min
Poverty Rate
8.4%
Median Age
47.4
Community Profile
The community surrounding Monarch Grove Elementary has a median household income of $103,839. It is a well-educated community where 50% of adults hold a bachelor's degree or higher. The median home value in the area is $729,200, with a median rent of $1,909/month. The local poverty rate of 8.4% is relatively low. The average commute for residents is 21 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Aragon Avenue Elementary Los Angeles, CA | 8.9 |
| Buena Vista Arts-Integrated Montclair, CA | 8.9 |
| Christopher Dena Elementary Los Angeles, CA | 8.9 |
| Cortada Elementary El Monte, CA | 8.9 |
| Dahlia Heights Elementary Los Angeles, CA | 8.9 |
| Del Amo Elementary Carson, CA | 8.9 |
Frequently Asked Questions
Common questions about Monarch Grove Elementary
What grades does Monarch Grove Elementary serve?
Monarch Grove Elementary serves students in grades Kindergarten through 5th.
How many students attend Monarch Grove Elementary?
Monarch Grove Elementary has an enrollment of approximately 337 students.
What is the student-teacher ratio at Monarch Grove Elementary?
The student-teacher ratio at Monarch Grove Elementary is 22.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Monarch Grove Elementary rank in CA?
Monarch Grove Elementary is ranked #310 out of 9,533 schools in CA.
What is Monarch Grove Elementary's MySchoolScout rating?
Monarch Grove Elementary has a composite rating of 8.9 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Monarch Grove Elementary?
Based on the most recent state assessment data, Monarch Grove Elementary has 71.7% math proficiency and 74.4% reading/ELA proficiency.
Is Monarch Grove Elementary a charter school?
No, Monarch Grove Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is Monarch Grove Elementary a Title I school?
No, Monarch Grove Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Monarch Grove Elementary?
45.4% of students at Monarch Grove Elementary qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
Powered by 
FBI UCR 2024. County-level only. Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 5th
- Enrollment
- 337
- Student-Teacher Ratio
- 22.5:1
- Teachers (FTE)
- 15
- Free/Reduced Lunch
- 45.4%
- Type
- regular
- Setting
- Fringe Town
- County
- San Luis Obispo County
- Phone
- (805) 534-2844
- Data Year
- 2023–2024
Resources & Links
District
San Luis Coastal Unified- District Enrollment
- 7,577
- Schools in District
- 16
- Per-Pupil Spending
- $18,117
- District Rank
- #2 of 15
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.