Enrollment
1,778
Kansas · 2024-25 NCES data
High school (grades 9-12) · Olathe, KS
Olathe South Sr High
Federal NCES profile for Olathe South Sr High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 56/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 201014001602
👥 S:T ratio 40
📚 AP courses 100
🌟 Gifted program 70
🎓 Counselors 29
📋 Attendance 43
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Olathe South Sr High earns 56/100 on the Resource Investment Index, with class sizes larger than 72% of Kansas schools. It is also one of the largest schools in Kansas.
- #2 of 5
- high schools in Olathe · Resource Index
- 56
- Resource Index · Higher
- 14.9:1
- large classes for Kansas
- 16.0%
- free-lunch eligible
Olathe South Sr High has class sizes larger than 72% of Kansas schools. Computed live against every Kansas school reporting to NCES.
By Resource Investment Index, Olathe South Sr High ranks #2 of 5 high schools in Olathe, KS.
School address
Teachers (FTE)
119.0
Federal CCD staff survey
Students per teacher
14.9:1
vs 13.8:1 Kansas avg
+8% vs state
Free-lunch eligible
16.0%
vs 42.7% Kansas avg
-63% vs state
Student-teacher ratio in context
How Olathe South Sr High compares with Kansas and U.S. medians
What stands out at Olathe South Sr High
Olathe South Sr High is a lower-poverty, large high school in Olathe, Kansas, enrolling 1,778 students.
Class loads run somewhat heavier than typical: 14.9:1 puts it in the larger third of Kansas schools by student-teacher ratio.
Comparatively few students face economic hardship here, 16.0% free-meal eligibility runs 63% below the Kansas average.
By headcount it is one of the larger campuses in Kansas, bigger than 99% of state schools at 1,778 students.
Its Resource Investment Index sits near the middle of the pack among 1,346 scored Kansas schools.
Against 20 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #7.
Its student body is led by White (69%) and Hispanic or Latino (15%) (diversity index 49/100).
On the academic-pipeline side it reports 42 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 356 students sharing each counselor, though short of the most stretched campuses.
Attendance runs somewhat below the norm, with 23.0% of students chronically absent per the 2021-22 civil-rights collection.
The federal civil-rights collection also records 6 expulsions at this campus for 2021-22.
Among Olathe's high schools, it stands alongside Olathe North Sr High (2,011 students): Olathe South Sr High is smaller than that campus by headcount and runs leaner classes (14.9:1 vs 15.2:1).
Olathe also operates Olathe North Sr High (2,011 students) and Olathe Northwest High School (1,958 students) alongside Olathe South Sr High.
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 Olathe South Sr High compares
Olathe South Sr High on the metrics families compare, against Kansas and U.S. means.
| Metric | This school | vs Kansas | Kansas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.9:1 | ▲ 8% | 13.8:1 | 15.7:1 |
| Free-lunch eligible | 16.0% | ▼ 63% | 42.7% | 51.7% |
| Enrollment | 1,778 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.9:1
Leaner classes than 48% of US schools, a middle-of-the-pack class size.
1,778
Bigger than 97% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
16.0%
free-lunch eligible
- 63% below the Kansas average of 42.7%
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
14.9:1
students per teacher
- 8% above state mean
Top 72% in Kansas - lower ratio than 28% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
23.0%
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
$14,650
per pupil, district-wide
- below Kansas avg of $15,487
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors5.0 FTE
Per 356 students, the combined health-and-guidance staffing load for this school.
Discipline context
88
in-school suspensions + 64 out-of-school
Suspension rate: 4.9 per 100 students. Combined in-school and out-of-school rate: 8.5 per 100 students. Reported via the Civil Rights Data Collection. Includes 6 expulsions.
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 68.9%
Hispanic or Latino 14.7%
African American 7.8%
Asian 4.2%
Two or More 4.1%
American Indian / Alaska Native 0.3%
Largest group: White at 68.9% of enrollment.
Student-body diversity index 49.4/100
Simpson diversity index - at 49.4, Olathe South Sr High is more mixed than the Kansas school average of 39.4.
Programs
AP courses offered 42
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Olathe, which includes Olathe South Sr High.
$14,650
Per student
-5%
vs Kansas
Avg $15,487
-12%
vs U.S.
Avg $16,593
Revenue mix
Local 37.2%
State 56.9%
Federal 5.9%
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 Olathe South Sr High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Olathe North Sr High | Similar size | Higher economic need | Similar S:T ratio |
| Olathe Northwest High School | Similar size | Similar economic need | Similar S:T ratio |
| Olathe East Sr High | Similar size | Similar economic need | Similar S:T ratio |
| Olathe West High School | Similar size | Similar economic need | Similar S:T ratio |
| Prairie Trail Middle School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Olathe South Sr High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,011
- Students per teacher
- 15.2:1
- Resource Index
- 40/100
- Enrollment
- 1,958
- Students per teacher
- 16:1
- Resource Index
- 49/100
- Enrollment
- 1,844
- Students per teacher
- 14.3:1
- Resource Index
- 45/100
- Enrollment
- 1,557
- Students per teacher
- 14.6:1
- Resource Index
- 40/100
- Enrollment
- 709
- Students per teacher
- 14.8:1
- Resource Index
- 55/100
Similar high schools in Olathe
4 comparable high schools (grades 9-12) serving the same city.
Olathe North Sr High
Standard public school
2,011 students 15.2:1 students per teacher
Olathe Northwest High School
Standard public school
1,958 students 16:1 students per teacher
Olathe East Sr High
Standard public school
1,844 students 14.3:1 students per teacher
Olathe West High School
Standard public school
1,557 students 14.6:1 students per teacher
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Kansas, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,778 students)
Similar student-teacher ratio (~14.9:1)
Next steps
Verify locally before acting on Olathe South Sr High's federal record.
- Compare Olathe South Sr High against another school. Compare schools
- Olathe'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 Olathe South Sr High
How many students attend Olathe South Sr High?
Olathe South Sr High has 1,778 students enrolled. It is a high school in Olathe, KS.
What is the student-teacher ratio at Olathe South Sr High?
The student-teacher ratio at Olathe South Sr High is 14.9:1, which is 8% higher than the Kansas average of 13.8:1 and 5% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Olathe South Sr High?
16.0% of students at Olathe South Sr High are eligible for free lunch, compared to the Kansas average of 42.7%.
What is the racial and ethnic makeup of Olathe South Sr High?
The largest demographic group at Olathe South Sr High is White at 68.9% of enrollment, in Olathe, KS.
What is the Resource Investment Index for Olathe South Sr High?
Olathe South Sr High has a Resource Investment Index of 56/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Olathe South Sr High rank among high schools in Olathe?
By Resource Investment Index, Olathe South Sr High ranks #2 of 5 high schools in Olathe, KS. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Olathe on the city page.
Is Olathe South Sr High a good school?
Olathe South Sr High earns 56/100 on the Resource Investment Index, with class sizes larger than 72% of Kansas schools. It is also one of the largest schools in Kansas. 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 Olathe?
Besides Olathe South Sr High, Olathe also operates Olathe North Sr High (2,011 students), Olathe Northwest High School (1,958 students), and Olathe East Sr High (1,844 students). See the Olathe 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.