Enrollment
405
California · 2024-25 NCES data
Middle school (grades 6-8) · Kelseyville, CA
Federal NCES profile for Mountain Vista Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
The verdict
Mountain Vista Middle earns 49/100 on the Resource Investment Index, with class sizes smaller than 71% of California schools.
Mountain Vista Middle has class sizes smaller than 71% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Mountain Vista Middle ranks #2 of 7 public schools in Kelseyville, CA.
NCES ID 061932009382 Verify on NCES CCD record →
Enrollment
405
California · 2024-25 NCES data
Teachers (FTE)
21.0
Federal CCD staff survey
Students per teacher
19.3:1
vs 21.5:1 California avg
-10% vs state
Free-lunch eligible
71.7%
vs 55.5% California avg
+29% vs state
How Mountain Vista Middle compares with California and U.S. medians
Smaller classes than state median
19.3:1 - 2.2 below the California state median of 21.5:1, indicating smaller average class loads than typical schools in the state.
Mountain Vista Middle is a higher-need, mid-sized middle school in Kelseyville, California, enrolling 405 students.
Class sizes run a bit leaner than typical: 19.3:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 71.7% of students eligible for free meals.
With 405 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index outscores 91% of the 9,998 California schools with a score on record, a top-tier result on this measure.
Among 1,903 similarly sized, similarly resourced-need California schools statewide, it ranks #51, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (51%) and White (38%) (diversity index 59/100).
Counselor coverage is strong, about 203 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance holds up well here: only 6.4% of students were chronically absent, below the typical post-pandemic national figure.
The federal civil-rights collection also records 13 expulsions at this campus for 2021-22.
Kelseyville Unified also operates Kelseyville Elementary (543 students) and Kelseyville High (515 students) alongside Mountain Vista Middle.
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
Mountain Vista Middle on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.3:1 | ▼ 10% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 71.7% | ▲ 29% | 55.5% | 51.7% |
| Enrollment | 405 | top 60% | - | - |
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: Hispanic or Latino at 50.6% of enrollment.
Simpson diversity index - at 59.3, Mountain Vista Middle is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Kelseyville Unified, which includes Mountain Vista Middle.
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 |
|---|---|---|---|
| Kelseyville Elementary | Larger | Similar economic need | Higher S:T ratio |
| Kelseyville High | Larger | Lower economic need | Lower S:T ratio |
| Riviera Elementary | Smaller | Lower economic need | Higher S:T ratio |
| Kelseyville Learning Academy | Smaller | Lower economic need | Lower S:T ratio |
| Ed Donaldson Education Center | Smaller | Similar economic need | No ratio data |
Comparisons are relative to Mountain Vista Middle's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Mountain Vista Middle'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.
Mountain Vista Middle has 405 students enrolled. It is a middle school in Kelseyville, CA.
The student-teacher ratio at Mountain Vista Middle is 19.3:1, which is 10% lower than the California average of 21.5:1 and 23% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
71.7% of students at Mountain Vista Middle are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Mountain Vista Middle is Hispanic or Latino at 50.6% of enrollment, in Kelseyville, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.3/100.
Mountain Vista Middle has a Resource Investment Index of 49/100 (higher 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, Mountain Vista Middle ranks #2 of 7 public schools in Kelseyville, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Kelseyville on the city page.
Mountain Vista Middle earns 49/100 on the Resource Investment Index, with class sizes smaller than 71% of California 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 Mountain Vista Middle, Kelseyville Unified also operates Kelseyville Elementary (543 students), Kelseyville High (515 students), and Riviera Elementary (287 students). See the Kelseyville Unified 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, “Mountain Vista Middle, Kelseyville CA.” 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/mountain-vista-middle-ca
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