Average
#3727 of 9,533 schools in CA
Top 39% in state
Cosumnes Oaks High
High School · Elk Grove Unified
8350 Lotz Pkwy., Elk Grove, CA 95757
Enrollment
2,151
Student-Teacher
22.2:1
Score
6.8
Grades
9th – 12th
Enrollment
2,151
Student-Teacher
22.2:1
Score
6.8
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Elk Grove
#21 of 38
public schools
California high schools
#708 of 1,892
In district
#29 of 67
Elk Grove Unified
Equity
7.8 / 10
Very strong
About Cosumnes Oaks High
Cosumnes Oaks High serves 2,151 students in grades 9-12 in Elk Grove, California, earning a solid 7.3 out of 10 rating from MySchoolScout. The school ranks in the 77th percentile statewide, placing it at #2208 among California's 9566 schools. With 97 full-time equivalent teachers, the student-teacher ratio stands at 22.2 to 1.
Academically, Cosumnes Oaks High demonstrates strong performance in English Language Arts, with 67% of students achieving proficiency or above across grade levels. Math performance shows room for growth, with 42% of students meeting proficiency standards. The school's overall academic score of 7.9 out of 10 reflects its commitment to student achievement.
The school draws from an affluent community where the median household income reaches $128,216 and 42% of residents hold bachelor's degrees or higher. With a low poverty rate of 10%, the surrounding ZIP code of 95757 provides a stable foundation for student success. Home values averaging $616,200 reflect the area's desirability among families.
Located at 8350 Lotz Parkway, Cosumnes Oaks High sits in Elk Grove's large suburban setting within Sacramento County, serving a diverse population of over 53,000 residents in this well-established educational community.
What Parents Should Know
Cosumnes Oaks High is a large school with 2,151 students enrolled. Larger schools typically offer a wider range of academic programs, electives, and extracurricular activities. Parents may want to ask about how the school maintains a sense of community and ensures students don't get lost in the crowd.
The student-teacher ratio at Cosumnes Oaks High is 22.2:1, 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 · 4/4 metricsView breakdown
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Cosumnes Oaks High — Students at Cosumnes Oaks High score 54% proficient, which is below what's typical for similar communities (expected: 56%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
33.7%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 8 test records from CA state assessments. About our data
Proficiency Trend
↓ DecliningAverage 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: 4.7/10.
How Cosumnes Oaks High Compares
See how Cosumnes Oaks High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 53% (2019) to 41.7% (2024). Reading/ELA proficiency has declined from 71% (2019) to 66.8% (2024).
Location
8350 Lotz Pkwy., Elk Grove, CA 95757
Nearby Alternatives
Families considering Cosumnes Oaks High may also want to explore other high schools in the area. Elk Grove High (rated 7.0/10, 1.3 miles away), with a very similar rating. Additionally, Franklin High (rated 5.6/10, 1.8 miles away), a more accessible option. For more schools in Elk Grove, see our Elk Grove schools guide .
Nearby Schools
20 within 2.1 mi| School | Distance | Rating |
|---|---|---|
| Elizabeth Pinkerton Middle Elk Grove | 0.2 mi | 8.2 |
| Zehnder Ranch Elementary Elk Grove | 0.5 mi | 7.9 |
| Miwok Village Elementary Elk Grove | 0.7 mi | 6.7 |
| Ellen Feickert Elementary Elk Grove | 1.4 mi | 7.7 |
| Elitha Donner Elementary Elk Grove | 1.4 mi | 7.3 |
| ELK GROVE MONTESSORI SCHOOL Elk Grove | 1.4 mi | — |
| Elk Grove High Elk Grove | 1.3 mi | 7.0 |
| Jessie Baker Elk Grove | 1.4 mi | 6.3 |
| California Montessori Project - Elk Grove Campus Carmichael | 1.4 mi | 7.3 |
| Arlene Hein Elementary Elk Grove | 1.4 mi | 7.2 |
| Joseph Kerr Middle Elk Grove | 1.5 mi | 7.2 |
| Harriet G. Eddy Middle Elk Grove | 1.7 mi | 6.1 |
| James A. McKee Elementary Elk Grove | 1.8 mi | 4.0 |
| Florence Markofer Elementary Elk Grove | 1.6 mi | 7.8 |
| ST ELIZABETH ANN SETON CATHOLIC SCHOOL Elk Grove | 1.7 mi | 6.2 |
| St Elizabeth Ann Seton Catholic School Elk Grove | 1.7 mi | — |
| Jerusalem Arise Christian Academy Elk Grove | 1.9 mi | — |
| Franklin High Elk Grove | 1.8 mi | 5.6 |
| Toby Johnson Middle Elk Grove | 1.9 mi | 5.9 |
| Carroll Elementary Elk Grove | 2.1 mi | 7.9 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 95757 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$133,443
Median Home Value
$648,100
Median Rent
$2,470/mo
Population
54,535
College Educated
41.5%
Homeownership
72.6%
Avg Commute
32.8 min
Poverty Rate
9.4%
Median Age
38.2
Community Profile
The community surrounding Cosumnes Oaks High has a median household income of $133,443. It is a well-educated community where 42% of adults hold a bachelor's degree or higher. The median home value in the area is $648,100, with a median rent of $2,470/month. The local poverty rate of 9.4% is relatively low. The average commute for residents is 33 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 |
|---|---|
| Aptos High Aptos, CA | 6.8 |
| Buena Park High Buena Park, CA | 6.8 |
| Calabasas High Calabasas, CA | 6.8 |
| Carson Senior High Carson, CA | 6.8 |
| Centennial High Corona, CA | 6.8 |
| Chico High Chico, CA | 6.8 |
Frequently Asked Questions
Common questions about Cosumnes Oaks High
What grades does Cosumnes Oaks High serve?
Cosumnes Oaks High serves students in grades 9th through 12th.
How many students attend Cosumnes Oaks High?
Cosumnes Oaks High has an enrollment of approximately 2,151 students.
What is the student-teacher ratio at Cosumnes Oaks High?
The student-teacher ratio at Cosumnes Oaks High is 22.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Cosumnes Oaks High rank in CA?
Cosumnes Oaks High is ranked #3727 out of 9,533 schools in CA.
What is Cosumnes Oaks High's MySchoolScout rating?
Cosumnes Oaks High has a composite rating of 6.8 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 Cosumnes Oaks High?
Based on the most recent state assessment data, Cosumnes Oaks High has 48.6% math proficiency and 69.4% reading/ELA proficiency.
Is Cosumnes Oaks High a charter school?
No, Cosumnes Oaks High is not a charter school. It is a traditional public school operated by the local school district.
Is Cosumnes Oaks High a Title I school?
No, Cosumnes Oaks High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Cosumnes Oaks High?
33.7% of students at Cosumnes Oaks High 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
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 2,151
- Student-Teacher Ratio
- 22.2:1
- Teachers (FTE)
- 97
- Free/Reduced Lunch
- 33.7%
- Type
- regular
- Setting
- Large Suburb
- County
- Sacramento County
- Phone
- (916) 683-7670
- Data Year
- 2023–2024
Resources & Links
District
Elk Grove Unified- District Enrollment
- 62,603
- Schools in District
- 67
- Per-Pupil Spending
- $15,966
- District Rank
- #29 of 67
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.
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