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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

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 metrics
Student Progress4.7Below Average25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data3
Annual Change-1.65 pts/yr
Data Period2019–2024
TrendDeclining
Academics7.5Very Good25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency41.7%
Reading/ELA Proficiency66.8%
Math vs. State Avg+13.7 pts
Reading vs. State Avg+10.9 pts
Overall Proficiency54%
Expected (poverty-adj.)56%
vs. Expected-1.8 pts
Adjusted Percentile63th
College Readiness8.8Excellent30%
Graduation rates, AP course participation, and IB availability.
View breakdown
AP Participation29%
IB ProgramNo
Resources & Environment5.7Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio22.2:1
Per-Pupil Spending$14,181

Cosumnes Oaks High — Students at Cosumnes Oaks High score 54% proficient, which is below what's typical for similar communities (expected: 56%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

33.7%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 48.6%
School
State
31.8%
ELA Proficiency 69.4%
School
State
51.5%

Based on 8 test records from CA state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
53%
ELA
71%
2021*
Math
58%
ELA
73%
2024
Math
41.7%
ELA
66.8%

* 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.

Overall Score
6.8/10
61th percentile in CA
Academic
7.5/10
7.5/10
Growth
4.7/10
Below average
Environment
5.7/10
Above average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
34%
Teaching Staff
22:1 student-teacher ratio
97 teachers

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.

11 schools nearby View map →

Neighborhood Context

Walk Score
17 Car-Dependent
Bike Score
40 Somewhat Bikeable
City Safety
Elevated (1,427/100K)

Powered by Walk Score

FBI UCR 2024. City-level (Elk Grove). Data >1 year old.

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
Data Year
2023–2024

District

Elk Grove Unified
District Enrollment
62,603
Schools in District
67
Per-Pupil Spending
$15,966
District Rank
#29 of 67

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 methodology

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