- Enrollment
- 2,699
- Students per teacher
- 23.7:1
- Resource Index
- 35/100
High school (grades 9-12) · Riverside, CA
Arlington High
Federal NCES profile for Arlington High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 063315005131
👥 S:T ratio 3
🌟 Gifted program 70
🎓 Counselors 23
📋 Attendance 38
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Arlington High earns 34/100 on the Resource Investment Index, with class sizes larger than 74% of California schools. It is also one of the largest schools in California.
- #10 of 14
- high schools in Riverside · Resource Index
- 34
- Resource Index · Typical
- 24.3:1
- large classes for California
- 64.6%
- free-lunch eligible
Arlington High has class sizes larger than 74% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Arlington High ranks #10 of 14 high schools in Riverside, CA.
School address
District: Riverside Unified · California
NCES ID 063315005131 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+10 students YoY
Arlington High held near 1,967 students from 2022-23 to 2023-24 (+10 headcount).
Teacher FTE added 79.7 → 82.6 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+10 students YoY 063315005131 · Riverside, CA High · MID · TRAD
1,920 enr · 24.3:1 · 64.6% lunch · RII 34
Nearest enrollment peer: Martin Luther King Jr. High (2,699 students)
Arlington High held near 1,967 students from 2022-23 to 2023-24 (+10 headcount). Teacher FTE added 79.7 → 82.6 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Arlington High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Martin Luther
Martin Luther King Jr. High
2,699 students
- Polytechnic Hi
Polytechnic High
2,484 students
- Ramona High
Ramona High
2,142 students
- John W. North
John W. North High
2,011 students
- This school
Arlington High
1,920 students
- Mark Twain Ele 1,033
Mark Twain Elementary
1,033 students
What this shows Arlington High reports 1,920 students on the CCD universe file.
How Arlington High compares
Arlington High held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 24.3:1 | ▲ 13% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 64.6% | ▲ 16% | 55.5% | 51.7% |
| Enrollment | 1,920 | top 4% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
24.3:1
Leaner classes than 6% of US schools, heavier class loads than most.
1,920
Bigger than 98% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
64.6%
free-lunch eligible
- 16% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
24.3:1
students per teacher
- 13% above state mean
Top 74% in California - lower ratio than 26% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
24.7%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$16,986
per pupil, district-wide
- below California avg of $18,665
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors5.0 FTE
Per 384 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 105 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 5.5 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 74.7%
White 13.5%
Asian 4.4%
African American 4.1%
Two or More 3.0%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 74.7% of enrollment.
Student-body diversity index 41.9/100
Simpson diversity index - at 41.9, Arlington High is less mixed than the California school average of 46.0.
Programs
AP courses offered 16
Gifted & talented Yes
District finance for Riverside Unified reports $16,986 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Arlington High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Martin Luther King Jr. High | Larger | Lower economic need | Similar S:T ratio |
| Polytechnic High | Larger | Lower economic need | Similar S:T ratio |
| Ramona High | Similar size | Similar economic need | Similar S:T ratio |
| John W. North High | Similar size | Similar economic need | Lower S:T ratio |
| Mark Twain Elementary | Smaller | Lower economic need | Higher S:T ratio |
Comparisons are relative to Arlington High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,484
- Students per teacher
- 24.1:1
- Resource Index
- 36/100
- Enrollment
- 2,142
- Students per teacher
- 23:1
- Resource Index
- 38/100
- Enrollment
- 2,011
- Students per teacher
- 22.1:1
- Resource Index
- 40/100
- Enrollment
- 1,033
- Students per teacher
- 26.5:1
- Resource Index
- 33/100
Similar high schools in Riverside
6 comparable high schools (grades 9-12) serving the same city.
Martin Luther King Jr. High
Standard public school
2,699 students 23.7:1 students per teacher
Polytechnic High
Standard public school
2,484 students 24.1:1 students per teacher
Ramona High
Standard public school
2,142 students 23:1 students per teacher
John W. North High
Standard public school
2,011 students 22.1:1 students per teacher
Norte Vista High
Standard public school
1,804 students 18.4:1 students per teacher
Hillcrest High
Standard public school
1,780 students 22.5:1 students per teacher
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~1,920 students)
Frequently asked questions about Arlington High
How many students attend Arlington High?
Arlington High has 1,920 students enrolled. It is a high school in Riverside, CA. CCD year-over-year: 1,957 (2022-23) → 1,967 (2023-24), nearly flat (+10).
What is the student-teacher ratio at Arlington High?
The student-teacher ratio at Arlington High is 24.3:1, which is 13% higher than the California average of 21.5:1 and 55% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Arlington High?
64.6% of students at Arlington High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Arlington High?
The largest demographic group at Arlington High is Hispanic or Latino at 74.7% of enrollment, in Riverside, CA.
What is the Resource Investment Index for Arlington High?
Arlington High has a Resource Investment Index of 34/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Arlington High rank among high schools in Riverside?
By Resource Investment Index, Arlington High ranks #10 of 14 high schools in Riverside, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Riverside on the city page.
What other schools are in Riverside Unified?
Besides Arlington High, Riverside Unified also operates Martin Luther King Jr. High (2,699 students), Polytechnic High (2,484 students), and Ramona High (2,142 students). See the Riverside Unified district page for the complete list.