- Enrollment
- 1,748
- Students per teacher
- 20.8:1
- Resource Index
- 43/100
High school (grades 9-12) · Centennial, CO
Arapahoe High School
Federal NCES profile for Arapahoe High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 080531000873
👥 S:T ratio 16
🌟 Gifted program 70
🎓 Counselors 36
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Arapahoe High School earns 41/100 on the Resource Investment Index, with class sizes larger than 90% of Colorado schools. It is also one of the largest schools in Colorado.
- #3 of 3
- high schools in Centennial · Resource Index
- 41
- Resource Index · Typical
- 21.1:1
- large classes for Colorado
- 6.1%
- free-lunch eligible
Arapahoe High School has class sizes larger than 90% of Colorado schools. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, Arapahoe High School ranks #3 of 3 high schools in Centennial, CO.
School address
NCES ID 080531000873 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-39 students YoY
Arapahoe High School held near 1,781 students from 2022-23 to 2023-24 (-39 headcount).
Teacher FTE lost 83.7 → 78.9 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-39 students YoY 080531000873 · Centennial, CO High · MID · TRAD
1,748 enr · 21.1:1 · 6.1% lunch · RII 41
Nearest enrollment peer: Heritage High School (1,748 students)
Arapahoe High School held near 1,781 students from 2022-23 to 2023-24 (-39 headcount). Teacher FTE lost 83.7 → 78.9 across the same CCD years. Read with this school → · District book → · Colorado schools → · Find another →
Arapahoe High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Arapahoe High School
1,748 students
- Heritage High
Heritage High School
1,748 students
- Littleton High
Littleton High School
1,187 students
- Newton Middle
Newton Middle School
781 students
- Ford Elementar 653
Ford Elementary
653 students
- Euclid Middle 631
Euclid Middle School
631 students
What this shows Arapahoe High School reports 1,748 students on the CCD universe file.
How Arapahoe High School compares
Arapahoe High School held steady on CCD headcount: ratios and free-lunch share vs Colorado and U.S. means.
| Metric | This school | vs Colorado | Colorado avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.1:1 | ▲ 27% | 16.6:1 | 15.7:1 |
| Free-lunch eligible | 6.1% | ▼ 84% | 38.5% | 51.7% |
| Enrollment | 1,748 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.1:1
Leaner classes than 13% of US schools, heavier class loads than most.
1,748
Bigger than 97% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
6.1%
free-lunch eligible
- 84% below the Colorado average of 38.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
21.1:1
students per teacher
- 27% above state mean
Top 90% in Colorado - lower ratio than 10% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Funding equity
$15,924
per pupil, district-wide
- below Colorado avg of $17,910
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors5.5 FTE
Per 318 students, the combined health-and-guidance staffing load for this school.
Discipline context
6
in-school suspensions + 47 out-of-school
Suspension rate: 0.3 per 100 students. Combined in-school and out-of-school rate: 3.0 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Student demographics
White 79.1%
Hispanic or Latino 11.3%
Two or More 5.5%
African American 1.9%
Asian 1.9%
Native Hawaiian / Pacific Islander 0.3%
Largest group: White at 79.1% of enrollment.
Student-body diversity index 35.8/100
Simpson diversity index - at 35.8, Arapahoe High School is less mixed than the Colorado school average of 47.1.
Programs
AP courses offered 15
Gifted & talented Yes
District finance for Littleton School District No. 6 in the County of Arapahoe reports $15,924 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Arapahoe High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Heritage High School | Similar size | Similar economic need | Similar S:T ratio |
| Littleton High School | Smaller | Higher economic need | Lower S:T ratio |
| Newton Middle School | Smaller | Similar economic need | Lower S:T ratio |
| Ford Elementary | Smaller | Similar economic need | Lower S:T ratio |
| Euclid Middle School | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Arapahoe High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,187
- Students per teacher
- 16.7:1
- Resource Index
- 41/100
- Enrollment
- 781
- Students per teacher
- 18.6:1
- Resource Index
- 48/100
- Enrollment
- 653
- Students per teacher
- 17.2:1
- Resource Index
- 51/100
- Enrollment
- 631
- Students per teacher
- 15:1
- Resource Index
- 49/100
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 (~1,748 students)
Similar student-teacher ratio (~21.1:1)
Frequently asked questions about Arapahoe High School
How many students attend Arapahoe High School?
Arapahoe High School has 1,748 students enrolled. It is a high school in Centennial, CO. CCD year-over-year: 1,820 (2022-23) → 1,781 (2023-24), nearly flat (-39).
What is the student-teacher ratio at Arapahoe High School?
The student-teacher ratio at Arapahoe High School is 21.1:1, which is 27% higher than the Colorado average of 16.6:1 and 34% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Arapahoe High School?
6.1% of students at Arapahoe High School are eligible for free lunch, compared to the Colorado average of 38.5%.
What is the racial and ethnic makeup of Arapahoe High School?
The largest demographic group at Arapahoe High School is White at 79.1% of enrollment, in Centennial, CO.
What is the Resource Investment Index for Arapahoe High School?
Arapahoe High School has a Resource Investment Index of 41/100 (typical 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 High School rank among high schools in Centennial?
By Resource Investment Index, Arapahoe High School ranks #3 of 3 high schools in Centennial, 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 Centennial on the city page.
What other schools are in Littleton School District No. 6 in the County of Arapahoe?
Besides Arapahoe High School, Littleton School District No. 6 in the County of Arapahoe also operates Heritage High School (1,748 students), Littleton High School (1,187 students), and Newton Middle School (781 students). See the Littleton School District No. 6 in the County of Arapahoe district page for the complete list.