Enrollment
190
Wyoming · 2024-25 NCES data
Elementary school (grades K-5) · Casper, WY
Federal NCES profile for Poison Spider Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
The verdict
Poison Spider Elementary earns 30/100 on the Resource Investment Index, with class sizes larger than 78% of Wyoming schools.
Poison Spider Elementary has class sizes larger than 78% of Wyoming schools. Computed live against every Wyoming school reporting to NCES.
By Resource Investment Index, Poison Spider Elementary ranks #11 of 12 elementary schools in Casper, WY.
NCES ID 560451000253 Verify on NCES CCD record →
Enrollment
190
Wyoming · 2024-25 NCES data
Teachers (FTE)
14.0
Federal CCD staff survey
Students per teacher
13.6:1
vs 11.4:1 Wyoming avg
+19% vs state
Free-lunch eligible
36.5%
vs 27.4% Wyoming avg
+33% vs state
How Poison Spider Elementary compares with Wyoming and U.S. medians
Slightly above state median
13.6:1 - 2.2 above the Wyoming state median of 11.4:1, indicating larger average class loads than typical schools in the state.
Poison Spider Elementary is a mid-sized elementary school in Casper, Wyoming, enrolling 190 students.
Class loads run somewhat heavier than typical: 13.6:1 puts it in the larger third of Wyoming schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 36.5% of students eligible for free meals.
With 190 students, its enrollment sits close to the Wyoming median campus size.
Its Resource Investment Index lands in the lower third of 347 scored Wyoming schools.
Among 61 similarly sized, similarly resourced-need Wyoming schools statewide, it ranks #53, in the lower tier once campus size and economic need are matched.
Its student body is predominantly White (92% of enrollment) (diversity index 16/100).
Counselor access is stretched at roughly 475 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 39.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Natrona County School District #1 spends $16,139 per pupil, 28% below the Wyoming average, a leaner-resourced district than most.
Its district draws 15.1% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Casper's elementary schools, it stands alongside Verda James Elementary (448 students): Poison Spider Elementary is smaller than that campus by headcount and runs leaner classes (13.6:1 vs 17.9:1).
Natrona County School District #1 also operates Kelly Walsh High School (2,002 students) and Natrona County High School (1,703 students) alongside Poison Spider Elementary.
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
Poison Spider Elementary on the metrics families compare, against Wyoming and U.S. means.
| Metric | This school | vs Wyoming | Wyoming avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.6:1 | ▲ 19% | 11.4:1 | 15.7:1 |
| Free-lunch eligible | 36.5% | ▲ 33% | 27.4% | 51.7% |
| Enrollment | 190 | top 54% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: White at 91.6% of enrollment.
Simpson diversity index - at 15.9, Poison Spider Elementary is less mixed than the Wyoming school average of 33.2.
District-wide per-pupil expenditure for Natrona County School District #1, which includes Poison Spider Elementary.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Kelly Walsh High School | Larger | Lower economic need | Higher S:T ratio |
| Natrona County High School | Larger | Lower economic need | Similar S:T ratio |
| C Y Middle School | Larger | Lower economic need | Similar S:T ratio |
| Centennial Middle School | Larger | Lower economic need | Similar S:T ratio |
| Dean Morgan Middle School | Larger | Similar economic need | Lower S:T ratio |
Comparisons are relative to Poison Spider Elementary's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
Matched by enrollment size and by staffing ratio across all of Wyoming, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Poison Spider Elementary's federal record.
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.
Poison Spider Elementary has 190 students enrolled. It is an elementary school in Casper, WY.
The student-teacher ratio at Poison Spider Elementary is 13.6:1, which is 19% higher than the Wyoming average of 11.4:1 and 13% lower than the national average of 15.7:1.
36.5% of students at Poison Spider Elementary are eligible for free lunch, compared to the Wyoming average of 27.4%.
The largest demographic group at Poison Spider Elementary is White at 91.6% of enrollment, in Casper, WY.
Poison Spider Elementary has a Resource Investment Index of 30/100 (lower 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).
By Resource Investment Index, Poison Spider Elementary ranks #11 of 12 elementary schools in Casper, WY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Casper on the city page.
Poison Spider Elementary earns 30/100 on the Resource Investment Index, with class sizes larger than 78% of Wyoming schools. 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.
Besides Poison Spider Elementary, Natrona County School District #1 also operates Kelly Walsh High School (2,002 students), Natrona County High School (1,703 students), and C Y Middle School (766 students). See the Natrona County School District #1 district page for the complete list.
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.
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PlainSchools, “Poison Spider Elementary, Casper WY.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/poison-spider-elementary-wy
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