Los Osos High
- 2,759 Students
- 107.1 Teachers (FTE)
- 25.8:1 Student:Teacher
- 09–12 Grade Range
- Open Status
- (909)477-6900 Phone
- http://www.cjuhsd.net Website
SchoolFinderUSA
National School Directory
Los Osos High
Rancho Cucamonga, CA 91737
High Supplemental Virtual Grades 09–12 SchoolScore™ F (22.1)
2,759
Students
107.1
Teachers
25.8:1
Student:Teacher
(909)477-6900
Phone
http://www.cjuhsd.net
Website
Los Osos High is a public High school located in Rancho Cucamonga, CALIFORNIA, operated by the Chaffey Joint Union High school district. It serves grades 09–12.
Key statistics: 2,759 students enrolled; a 25.8:1 student-to-teacher ratio.
The school is classified as Suburb: Large by the NCES locale classification system.
Data sourced from the National Center for Education Statistics (NCES) Common Core of Data (CCD), the definitive federal database of U.S. public schools, updated annually.
vs California High School Average
Enrollment
2,759.0
State avg: 846.0
▲ 226% better
Student:Teacher Ratio
25.76:1
State avg: 18.2:1
▲ 42% worse
Free Lunch %
43.7%
State avg: 66.5%
▼ 34% better
School Details
School Name
Los Osos High
NCESSCH ID
060816010605
State School ID
CA-3667652-3631058
School Type
Regular School
Level
High
Status
Open
Charter
No
Charter Auth
–
Virtual
Supplemental Virtual
NSLP Status
Yes under Community Eligibility Option (CEO)
Shared Time
Missing
School Year
2024-2025
Location
Address
6001 Milliken Ave.
City
Rancho Cucamonga
State
California
ZIP Code
91737
County
San Bernardino County
Metro Area
Riverside-San Bernardino-Ontario, CA
Metro Type
Metropolitan
Locale
Suburb: Large
Cong. District
0628
State Leg. Upper
06025
State Leg. Lower
06041
Latitude
34.145
Longitude
-117.5559
Grades Offered
9th
10th
11th
12th
2,759
Total Students
107.1
Teachers FTE
25.8:1
Student:Teacher
Enrollment by Grade
107.1
Teachers (FTE)
Full Staff Breakdown
| Metric | Value |
|---|---|
| Teachers (FTE) | 107.1 |
National School Lunch Program Participation
Lunch Program Details
| Program | Students | % of Enrollment |
|---|---|---|
| No Category Codes | 1,206 | 43.7% |
| Not Applicable | 534 | 19.4% |
District Info
District Name
Chaffey Joint Union High
LEAID
0608160
State LEA ID
CA-3667652
Phone
(909)988-8511
Website
http://www.cjuhsd.net
Type
Regular public school district that is not a component of a supervisory union
Status
Open
City
Ontario
District Finance (F-33)
Total Revenue
$511,017K
Federal Revenue
$38,187K
State Revenue
$293,882K
Local Revenue
$178,948K
Total Expenditure
$483,975K
Instruction Exp.
$243,446K
Support Services
$131,228K
Other Current Exp.
$11,984K
Geographic
Nearby Schools
Public schools within ~12 miles of Los Osos High
Comparable Schools
Similar Schools
Public high in California with similar enrollment to Los Osos High
Yucaipa High
Yucaipa-Calimesa Joint Unified
Yucaipa, CA
Mission Hills High
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San Marcos, CA
Chino Hills High
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Chino Hills, CA
Cajon High
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Dublin High
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Calexico High
Calexico Unified
Calexico, CA
Alisal High
Salinas Union High
Salinas, CA
Arnold O. Beckman High
Tustin Unified
Irvine, CA
FAQ
Frequently Asked Questions
Common questions about Los Osos High, answered using official NCES data.