Enrollment
27
California · 2024-25 NCES data
Elementary school (grades K-5) · Petrolia, CA
Mattole Elementary
Federal NCES profile for Mattole Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 52/100.
2024-25 NCES dataElementary school (grades K-5)NCES 060003803640
👥 S:T ratio 64
🌟 Gifted program 30
📋 Attendance 63
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mattole Elementary earns 52/100 on the Resource Investment Index, with class sizes smaller than 96% of California schools. It is also one of the smallest schools in California.
- 52
- Resource Index · Higher
- 9:1
- small classes for California
- 14.3%
- free-lunch eligible
- 27
- students enrolled
Mattole Elementary has class sizes smaller than 96% of California schools. Computed live against every California school reporting to NCES.
School address
District: Mattole Unified · California
NCES ID 060003803640 Verify on NCES CCD record →
Teachers (FTE)
3.0
Federal CCD staff survey
Students per teacher
9:1
vs 21.5:1 California avg
-58% vs state
Free-lunch eligible
14.3%
vs 55.5% California avg
-74% vs state
Student-teacher ratio in context
How Mattole Elementary compares with California and U.S. medians
What stands out at Mattole Elementary
Mattole Elementary is a lower-poverty, small elementary school in Petrolia, California, enrolling 27 students.
Classes run notably small here: at 9:1, Mattole Elementary is leaner than roughly 96% of California schools and 58% under the state's 21.5:1 norm, more adult attention per pupil than most peers.
Comparatively few students face economic hardship here, 14.3% free-meal eligibility runs 74% below the California average.
This is a small campus: fewer students than 96% of California schools, with 27 enrolled.
Its Resource Investment Index outscores 94% of the 9,998 California schools with a score on record, a top-tier result on this measure.
Against 22 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #6.
Its student body is led by White (52%) and Two or More (41%) (diversity index 56/100).
14.8% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Mattole Unified spends $25,732 per pupil, 56% above the California average, a better-resourced district than most.
Mattole Unified also operates Honeydew Elementary (13 students) and Mattole Triple Junction High (2 students) alongside Mattole 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
How Mattole Elementary compares
Mattole Elementary on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9:1 | ▼ 58% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 14.3% | ▼ 74% | 55.5% | 51.7% |
| Enrollment | 27 | top 96% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9:1
Leaner classes than 93% of US schools, among the more generously staffed nationally.
27
Bigger than 3% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
14.3%
free-lunch eligible
- 74% below the California average of 55.5%
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
9:1
students per teacher
- 58% below state mean
Top 4% in California - lower ratio than 96% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
14.8%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$25,732
per pupil, district-wide
- above California avg of $16,509
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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
White 51.9%
Two or More 40.7%
Hispanic or Latino 7.4%
Largest group: White at 51.9% of enrollment.
Student-body diversity index 56.0/100
Simpson diversity index - at 56.0, Mattole Elementary is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Mattole Unified, which includes Mattole Elementary.
$25,732
Per student
+56%
vs California
Avg $16,509
+55%
vs U.S.
Avg $16,593
Revenue mix
Local 54.7%
State 43.1%
Federal 2.2%
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 Mattole Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Honeydew Elementary | Smaller | No free-lunch data | No ratio data |
| Mattole Triple Junction High | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Mattole Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 13
- Students per teacher
- -
- Resource Index
- 46/100
- Enrollment
- 2
- Students per teacher
- 2:1
- Resource Index
- 74/100
Similar elementary schools statewide
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.
Similar enrollment (~27 students)
Next steps
Verify locally before acting on Mattole Elementary's federal record.
- Compare Mattole Elementary against another school. Compare schools
- Mattole Unified'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 Mattole Elementary
How many students attend Mattole Elementary?
Mattole Elementary has 27 students enrolled. It is an elementary school in Petrolia, CA.
What is the student-teacher ratio at Mattole Elementary?
The student-teacher ratio at Mattole Elementary is 9:1, which is 58% lower than the California average of 21.5:1 and 43% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Mattole Elementary?
14.3% of students at Mattole Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Mattole Elementary?
The largest demographic group at Mattole Elementary is White at 51.9% of enrollment, in Petrolia, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 56.0/100.
What is the Resource Investment Index for Mattole Elementary?
Mattole Elementary has a Resource Investment Index of 52/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Is Mattole Elementary a good school?
Mattole Elementary earns 52/100 on the Resource Investment Index, with class sizes smaller than 96% of California schools. It is also one of the smallest schools in California. 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 Mattole Unified?
Besides Mattole Elementary, Mattole Unified also operates Honeydew Elementary (13 students) and Mattole Triple Junction High (2 students). See the Mattole Unified 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.