- Enrollment
- 1,939
- Students per teacher
- 19:1
- Resource Index
- 34/100
High school (grades 9-12) · Boulder, CO
Arapahoe Ridge High School
Federal NCES profile for Arapahoe Ridge High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 75/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 080249001219
👥 S:T ratio 74
🌟 Gifted program 70
🎓 Counselors 83
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Arapahoe Ridge High School earns 75/100 on the Resource Investment Index, with class sizes smaller than 98% of Colorado schools.
- #1 of 5
- high schools in Boulder · Resource Index
- 75
- Resource Index · Higher
- 6.6:1
- small classes for Colorado
- 60.2%
- free-lunch eligible
Arapahoe Ridge High School has class sizes smaller than 98% of Colorado schools. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, Arapahoe Ridge High School ranks #1 of 5 high schools in Boulder, CO.
School address
District: Boulder Valley School District No. Re2 · Colorado
NCES ID 080249001219 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+39 students YoY
Arapahoe Ridge High School grew from 206 students in 2022-23 to 245 in 2023-24 (+18.9%).
Teacher FTE added 28.2 → 30.9 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+39 students YoY 080249001219 · Boulder, CO High · SMALL · TRAD
184 enr · 6.6:1 · 60.2% lunch · RII 75
Nearest enrollment peer: Boulder High School (1,939 students)
Arapahoe Ridge High School grew from 206 students in 2022-23 to 245 in 2023-24 (+18.9%). Teacher FTE added 28.2 → 30.9 across the same CCD years. Read with this school → · District book → · Colorado schools → · Find another →
Arapahoe Ridge High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Boulder High S
Boulder High School
1,939 students
- Fairview High
Fairview High School
1,863 students
- Broomfield Hig
Broomfield High School
1,693 students
- Centaurus High
Centaurus High School
1,557 students
- Peak to Peak C
Peak to Peak Charter School
1,447 students
- This school 184
Arapahoe Ridge High School
184 students
What this shows Arapahoe Ridge High School reports 184 students on the CCD universe file.
How Arapahoe Ridge High School compares
Arapahoe Ridge High School is a growing campus on CCD: ratios and free-lunch share vs Colorado and U.S. means.
| Metric | This school | vs Colorado | Colorado avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 6.6:1 | ▼ 60% | 16.6:1 | 15.7:1 |
| Free-lunch eligible | 60.2% | ▲ 56% | 38.5% | 51.7% |
| Enrollment | 184 | top 78% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
6.6:1
Leaner classes than 97% of US schools, among the more generously staffed nationally.
184
Bigger than 18% of US schools by enrollment, a small campus.
Equity indicators methodology
Economic need
60.2%
free-lunch eligible
- 56% above the Colorado average of 38.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
6.6:1
students per teacher
- 60% below state mean
Top 2% in Colorado - lower ratio than 98% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Funding equity
$17,172
per pupil, district-wide
- below Colorado avg of $17,910
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors2.1 FTE
Per 87 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 2 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.1 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 52.7%
White 35.9%
Two or More 3.8%
African American 3.3%
American Indian / Alaska Native 2.7%
Asian 1.1%
Native Hawaiian / Pacific Islander 0.5%
Largest group: Hispanic or Latino at 52.7% of enrollment.
Student-body diversity index 59.0/100
Simpson diversity index - at 59.0, Arapahoe Ridge High School is more mixed than the Colorado school average of 47.1.
Programs
AP program Not offered
Gifted & talented Yes
District finance for Boulder Valley School District No. Re2 reports $17,172 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Arapahoe Ridge High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Boulder High School | Larger | Lower economic need | Higher S:T ratio |
| Fairview High School | Larger | Lower economic need | Higher S:T ratio |
| Broomfield High School | Larger | Lower economic need | Higher S:T ratio |
| Centaurus High School | Larger | Lower economic need | Higher S:T ratio |
| Peak to Peak Charter School | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Arapahoe Ridge High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,863
- Students per teacher
- 21.4:1
- Resource Index
- 46/100
- Enrollment
- 1,693
- Students per teacher
- 21.4:1
- Resource Index
- 38/100
- Enrollment
- 1,557
- Students per teacher
- 19.2:1
- Resource Index
- 30/100
- Enrollment
- 1,447
- Students per teacher
- 19.3:1
- Resource Index
- 54/100
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 (~184 students)
Frequently asked questions about Arapahoe Ridge High School
How many students attend Arapahoe Ridge High School?
Arapahoe Ridge High School has 184 students enrolled. It is a high school in Boulder, CO. CCD year-over-year: 206 (2022-23) → 245 (2023-24), up 39.
What is the student-teacher ratio at Arapahoe Ridge High School?
The student-teacher ratio at Arapahoe Ridge High School is 6.6:1, which is 60% lower than the Colorado average of 16.6:1 and 58% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Arapahoe Ridge High School?
60.2% of students at Arapahoe Ridge High School are eligible for free lunch, compared to the Colorado average of 38.5%.
What is the racial and ethnic makeup of Arapahoe Ridge High School?
The largest demographic group at Arapahoe Ridge High School is Hispanic or Latino at 52.7% of enrollment, in Boulder, CO. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.0/100.
What is the Resource Investment Index for Arapahoe Ridge High School?
Arapahoe Ridge High School has a Resource Investment Index of 75/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Arapahoe Ridge High School rank among high schools in Boulder?
By Resource Investment Index, Arapahoe Ridge High School ranks #1 of 5 high schools in Boulder, CO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Boulder on the city page.
What other schools are in Boulder Valley School District No. Re2?
Besides Arapahoe Ridge High School, Boulder Valley School District No. Re2 also operates Boulder High School (1,939 students), Fairview High School (1,863 students), and Broomfield High School (1,693 students). See the Boulder Valley School District No. Re2 district page for the complete list.