Enrollment
1,659
Colorado · 2024-25 NCES data
High school (grades 9-12) · Castle Rock, CO
Douglas County High School
Federal NCES profile for Douglas County High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 61/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 080345000440
👥 S:T ratio 30
📚 AP courses 85
🌟 Gifted program 70
🎓 Counselors 60
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Douglas County High School earns 61/100 on the Resource Investment Index, with class sizes near the Colorado median. It is also one of the largest schools in Colorado.
- #2 of 3
- high schools in Castle Rock · Resource Index
- 61
- Resource Index · Higher
- 17.6:1
- students per teacher
- 1,659
- students enrolled
Douglas County High School has class sizes near the Colorado median. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, Douglas County High School ranks #2 of 3 high schools in Castle Rock, CO.
School address
District: Douglas County School District No. Re 1 · Colorado
NCES ID 080345000440 Verify on NCES CCD record →
Teachers (FTE)
94.0
Federal CCD staff survey
Students per teacher
17.6:1
vs 16.6:1 Colorado avg
+6% vs state
Student-teacher ratio in context
How Douglas County High School compares with Colorado and U.S. medians
What stands out at Douglas County High School
Douglas County High School is a large high school in Castle Rock, Colorado, enrolling 1,659 students.
Class loads run somewhat heavier than typical: 17.6:1 puts it in the larger third of Colorado schools by student-teacher ratio.
By headcount it is one of the larger campuses in Colorado, bigger than 97% of state schools at 1,659 students.
Its Resource Investment Index lands in the upper third of 1,922 scored Colorado schools.
Its student body is led by White (68%) and Hispanic or Latino (22%) (diversity index 49/100).
On the academic-pipeline side it reports 17 Advanced Placement courses.
Counselor coverage is strong, about 202 students per counselor, inside the American School Counselor Association's recommended 250:1.
The surrounding Douglas County School District No. Re 1 spends $11,848 per pupil, 27% below the Colorado average, a leaner-resourced district than most.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Douglas County School District No. Re 1 also operates American Academy (2,803 students) and Rock Canyon High School (2,325 students) alongside Douglas County High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Douglas County High School compares
Douglas County High School on the metrics families compare, against Colorado and U.S. means.
| Metric | This school | vs Colorado | Colorado avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.6:1 | ▲ 6% | 16.6:1 | 15.7:1 |
| Enrollment | 1,659 | top 3% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.6:1
Leaner classes than 27% of US schools, heavier class loads than most.
1,659
Bigger than 97% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
17.6:1
students per teacher
- 6% above state mean
Top 68% in Colorado - lower ratio than 32% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Funding equity
$11,848
per pupil, district-wide
- below Colorado avg of $16,273
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors8.2 FTE
Per 202 students, the combined health-and-guidance staffing load for this school.
Discipline context
34
in-school suspensions + 91 out-of-school
Suspension rate: 2.0 per 100 students. Combined in-school and out-of-school rate: 7.5 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 67.9%
Hispanic or Latino 21.5%
Two or More 4.9%
Asian 3.4%
African American 1.7%
American Indian / Alaska Native 0.2%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 67.9% of enrollment.
Student-body diversity index 48.9/100
Simpson diversity index - at 48.9, Douglas County High School is about as mixed as the Colorado school average of 47.1.
Programs
AP courses offered 17
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Douglas County School District No. Re 1, which includes Douglas County High School.
$11,848
Per student
-27%
vs Colorado
Avg $16,273
-29%
vs U.S.
Avg $16,593
Revenue mix
Local 52.8%
State 40.8%
Federal 6.4%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Douglas County High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| American Academy | Larger | No free-lunch data | Similar S:T ratio |
| Rock Canyon High School | Larger | No free-lunch data | Higher S:T ratio |
| Legend High School | Larger | No free-lunch data | Higher S:T ratio |
| Mountain Vista High School | Larger | No free-lunch data | Higher S:T ratio |
| Chaparral High School | Similar size | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Douglas County High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,803
- Students per teacher
- 18:1
- Resource Index
- 33/100
- Enrollment
- 2,325
- Students per teacher
- 21.1:1
- Resource Index
- 47/100
- Enrollment
- 2,206
- Students per teacher
- 20.6:1
- Resource Index
- 29/100
- Enrollment
- 2,169
- Students per teacher
- 19.5:1
- Resource Index
- 50/100
- Enrollment
- 2,007
- Students per teacher
- 19.5:1
- Resource Index
- 50/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Colorado, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,659 students)
Next steps
Verify locally before acting on Douglas County High School's federal record.
- Compare Douglas County High School against another school. Compare schools
- Douglas County School District No. Re 1's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Douglas County High School
How many students attend Douglas County High School?
Douglas County High School has 1,659 students enrolled. It is a high school in Castle Rock, CO.
What is the student-teacher ratio at Douglas County High School?
The student-teacher ratio at Douglas County High School is 17.6:1, which is 6% higher than the Colorado average of 16.6:1 and 12% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Douglas County High School?
The largest demographic group at Douglas County High School is White at 67.9% of enrollment, in Castle Rock, CO.
What is the Resource Investment Index for Douglas County High School?
Douglas County High School has a Resource Investment Index of 61/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Douglas County High School rank among high schools in Castle Rock?
By Resource Investment Index, Douglas County High School ranks #2 of 3 high schools in Castle Rock, 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 Castle Rock on the city page.
Is Douglas County High School a good school?
Douglas County High School earns 61/100 on the Resource Investment Index, with class sizes near the Colorado median. It is also one of the largest schools in Colorado. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Douglas County School District No. Re 1?
Besides Douglas County High School, Douglas County School District No. Re 1 also operates American Academy (2,803 students), Rock Canyon High School (2,325 students), and Legend High School (2,206 students). See the Douglas County School District No. Re 1 district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.