Enrollment
448
Oklahoma · 2024-25 NCES data
Other / mixed grade configuration · Tulsa, OK
Clark Es
Federal NCES profile for Clark Es, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
2024-25 NCES dataOther / mixed grade configurationNCES 403060001703
👥 S:T ratio 34
🌟 Gifted program 70
🎓 Counselors 10
📋 Attendance 20
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Clark Es earns 34/100 on the Resource Investment Index, with class sizes near the Oklahoma median.
- #35 of 63
- schools in Tulsa · Resource Index
- 34
- Resource Index · Typical
- 16.6:1
- students per teacher
- 448
- students enrolled
Clark Es has class sizes near the Oklahoma median. Computed live against every Oklahoma school reporting to NCES.
By Resource Investment Index, Clark Es ranks #35 of 63 schools in Tulsa, OK.
School address
Teachers (FTE)
27.0
Federal CCD staff survey
Students per teacher
16.6:1
vs 16.1:1 Oklahoma avg
+3% vs state
Student-teacher ratio in context
How Clark Es compares with Oklahoma and U.S. medians
What stands out at Clark Es
Clark Es is a mid-sized combined-grade school in Tulsa, Oklahoma, enrolling 448 students.
Class loads run somewhat heavier than typical: 16.6:1 puts it in the larger third of Oklahoma schools by student-teacher ratio.
Enrollment of 448 puts it in the larger third of Oklahoma schools by headcount.
Its Resource Investment Index trails 91% of the 1,778 Oklahoma schools with a score on record, one of the lower results on this measure.
Its student body is led by Hispanic or Latino (70%) and African American (13%) (diversity index 48/100).
Counselor access is stretched at roughly 448 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 31.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Tulsa's public schools, it stands alongside Ellen Ochoa Es (968 students): Clark Es is smaller than that campus by headcount and runs heavier classes (16.6:1 vs 16.4:1).
Union also operates Union Hs (3,569 students) and Union 6th-7th Grade Ctr (2,123 students) alongside Clark Es.
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 Clark Es compares
Clark Es on the metrics families compare, against Oklahoma and U.S. means.
| Metric | This school | vs Oklahoma | Oklahoma avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.6:1 | ▲ 3% | 16.1:1 | 15.7:1 |
| Enrollment | 448 | top 28% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.6:1
Leaner classes than 33% of US schools, heavier class loads than most.
448
Bigger than 55% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
16.6:1
students per teacher
- 3% above state mean
Top 62% in Oklahoma - lower ratio than 38% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
31.9%
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
$10,730
per pupil, district-wide
- below Oklahoma avg of $12,594
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 448 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 32 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 7.1 per 100 students. Reported via the Civil Rights Data Collection.
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
Hispanic or Latino 70.3%
African American 12.9%
White 8.7%
Two or More 4.2%
American Indian / Alaska Native 2.7%
Asian 1.1%
Largest group: Hispanic or Latino at 70.3% of enrollment.
Student-body diversity index 47.9/100
Simpson diversity index - at 47.9, Clark Es is less mixed than the Oklahoma school average of 59.6.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Union, which includes Clark Es.
$10,730
Per student
-15%
vs Oklahoma
Avg $12,594
-35%
vs U.S.
Avg $16,593
Revenue mix
Local 48.0%
State 37.7%
Federal 14.3%
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 Clark Es Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Union Hs | Larger | No free-lunch data | Higher S:T ratio |
| Union 6th-7th Grade Ctr | Larger | No free-lunch data | Similar S:T ratio |
| Union Hs Freshman Academy | Larger | No free-lunch data | Similar S:T ratio |
| Union 8th Grade Ctr | Larger | No free-lunch data | Similar S:T ratio |
| Ellen Ochoa Es | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Clark Es's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,569
- Students per teacher
- 22.4:1
- Resource Index
- 45/100
- Enrollment
- 2,123
- Students per teacher
- 16.2:1
- Resource Index
- 32/100
- Enrollment
- 1,242
- Students per teacher
- 18:1
- Resource Index
- 29/100
- Enrollment
- 1,100
- Students per teacher
- 18:1
- Resource Index
- 26/100
- Enrollment
- 968
- Students per teacher
- 16.4:1
- Resource Index
- 32/100
Similar other schools in Tulsa
6 comparable other schools (grades Mixed) serving the same city.
Ellen Ochoa Es
Standard public school
968 students 16.4:1 students per teacher
Northwest Es
Standard public school
959 students 15.7:1 students per teacher
Kendall-Whittier Es
Standard public school
825 students 17.9:1 students per teacher
Southeast Es
Standard public school
817 students 16.7:1 students per teacher
Skelly Es
Standard public school
775 students 19.4:1 students per teacher
Disney Es
Standard public school
724 students 20.1:1 students per teacher
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of Oklahoma, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~448 students)
Similar student-teacher ratio (~16.6:1)
Next steps
Verify locally before acting on Clark Es's federal record.
- Compare Clark Es against another school. Compare schools
- Union'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 Clark Es
How many students attend Clark Es?
Clark Es has 448 students enrolled. It is a public school in Tulsa, OK.
What is the student-teacher ratio at Clark Es?
The student-teacher ratio at Clark Es is 16.6:1, which is 3% higher than the Oklahoma average of 16.1:1 and 6% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Clark Es?
The largest demographic group at Clark Es is Hispanic or Latino at 70.3% of enrollment, in Tulsa, OK.
What is the Resource Investment Index for Clark Es?
Clark Es has a Resource Investment Index of 34/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Clark Es rank among schools in Tulsa?
By Resource Investment Index, Clark Es ranks #35 of 63 schools in Tulsa, OK. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Tulsa on the city page.
Is Clark Es a good school?
Clark Es earns 34/100 on the Resource Investment Index, with class sizes near the Oklahoma median. 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 Union?
Besides Clark Es, Union also operates Union Hs (3,569 students), Union 6th-7th Grade Ctr (2,123 students), and Union Hs Freshman Academy (1,242 students). See the Union 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.