Cosumnes Oaks High
🇺🇸 Official data · 2025Elk Grove, California 95757 · Elk Grove Unified
#214 of 1,343 high schools in California
#5307 of 16,910 nationally
About Cosumnes Oaks High
Cosumnes Oaks High is a public high located in Elk Grove, in the Elk Grove Unified school district of California, United States. It caters for Grades 9–12. In 2025 it enrolled 2,109 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 61.9 out of 100, placing it in the top 50% of high schools in United States and 214th of 1,343 ranked high schools in California. Its strongest component is reading proficiency (74th percentile), and its weakest is students per teacher (12th percentile).
Other published figures: enrollment 2,109.
There are 38 schools in Elk Grove; Cosumnes Oaks High ranks 11th of 38 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)53%
- Reading proficiency (30%)71%
- Community advantage (fewer free/reduced-price lunch) (25%)38.9%
- Students per teacher (15%)21.5
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Cosumnes Oaks High by the official sources.
- Enrollment
- 2,109
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 38.9%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 21.5
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 71%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 53%
- Share of tested students proficient or above (all students, all grades).
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Schools near Cosumnes Oaks High
Closest schools by straight-line distance, with their Success Index (US).
Elizabeth Pinkerton Middle
Elk Grove · Public middle · Grades 7–8
1,136 students · 362 m away
Zehnder Ranch Elementary
Elk Grove · Public elementary · Grades K–6
1,019 students · 766 m away
Miwok Village Elementary
Elk Grove · Public elementary · Grades K–6
1,050 students · 1.2 km away
Elk Grove High
Elk Grove · Public high · Grades 9–12
1,684 students · 2.2 km away
Ellen Feickert Elementary
Elk Grove · Public elementary · Grades K–6
541 students · 2.2 km away
Elitha Donner Elementary
Elk Grove · Public elementary · Grades K–6
706 students · 2.2 km away
California Montessori Project - Elk Grove Campus
Elk Grove · Charter elementary · Grades K–8
577 students · 2.3 km away
Arlene Hein Elementary
Elk Grove · Public elementary · Grades K–6
817 students · 2.3 km away
Joseph Kerr Middle
Elk Grove · Public middle · Grades 7–8
877 students · 2.4 km away
Florence Markofer Elementary
Elk Grove · Public elementary · Grades K–6
670 students · 2.5 km away
Similar schools
Public high schools in California with a comparable Enrollment.
Colony High
Ontario · Public high · Grades 9–12
2,109 students
Citrus Valley High
Redlands · Public high · Grades 9–12
2,110 students
Angelo Rodriguez High
Fairfield · Public high · Grades 9–12
2,111 students
South High
Bakersfield · Public high · Grades 9–12
2,107 students
Corona del Mar High
Newport Beach · Public high · Grades 7–12
2,106 students
North Salinas High
Salinas · Public high · Grades 9–12
2,106 students
Frequently asked questions
Is Cosumnes Oaks High a good school?
Cosumnes Oaks High has a Success Index (US) of 61.9 out of 100 (Top 50% of high schools in United States) and ranks #214 of 1,343 in California. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Cosumnes Oaks High rank in California?
Cosumnes Oaks High ranks #214 of 1,343 high schools in California and #5307 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Cosumnes Oaks High?
Cosumnes Oaks High had 2,109 students in 2025.
Is Cosumnes Oaks High a elementary school or a high school?
Cosumnes Oaks High is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Cosumnes Oaks High?
There are 10 schools within 15 km of Cosumnes Oaks High; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.