Enrollment
7
California · 2024-25 NCES data
Elementary school (grades K-5) · Petaluma, CA
Lincoln Union
Federal NCES profile for Lincoln Union, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
2024-25 NCES dataElementary school (grades K-5)NCES 062043002574
👥 S:T ratio 72
🌟 Gifted program 30
📋 Attendance 28
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Lincoln Union earns 44/100 on the Resource Investment Index, with class sizes smaller than 98% of California schools. It is also one of the smallest schools in California.
- #4 of 25
- elementary schools in Petaluma · Resource Index
- 44
- Resource Index · Typical
- 7:1
- small classes for California
- 7
- students enrolled
Lincoln Union has class sizes smaller than 98% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Lincoln Union ranks #4 of 25 elementary schools in Petaluma, CA.
School address
District: Laguna Joint Elementary · California
NCES ID 062043002574 Verify on NCES CCD record →
Teachers (FTE)
1.0
Federal CCD staff survey
Students per teacher
7:1
vs 21.5:1 California avg
-67% vs state
Student-teacher ratio in context
How Lincoln Union compares with California and U.S. medians
What stands out at Lincoln Union
Lincoln Union is a small elementary school in Petaluma, California, enrolling 7 students.
Classes run notably small here: at 7:1, Lincoln Union is leaner than roughly 98% of California schools and 67% under the state's 21.5:1 norm, more adult attention per pupil than most peers.
This is a small campus: fewer students than 99% of California schools, with 7 enrolled.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Chronic absenteeism is elevated: 28.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Laguna Joint Elementary spends $25,286 per pupil, 53% above the California average, a better-resourced district than most.
Among Petaluma's elementary schools, it stands alongside Mary Collins Charter School at Cherry Valley (494 students): Lincoln Union is smaller than that campus by headcount and runs leaner classes (7:1 vs 29.1:1).
Its district, Laguna Joint Elementary, also runs Laguna Elementary (9 students).
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 Lincoln Union compares
Lincoln Union on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 7:1 | ▼ 67% | 21.5:1 | 15.7:1 |
| Enrollment | 7 | top 99% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
7:1
Leaner classes than 97% of US schools, among the more generously staffed nationally.
7
Bigger than 1% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Staffing depth
7:1
students per teacher
- 67% below state mean
Top 2% in California - lower ratio than 98% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
28.6%
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
$25,286
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.
Programs
Funding & spending
District-wide per-pupil expenditure for Laguna Joint Elementary, which includes Lincoln Union.
$25,286
Per student
+53%
vs California
Avg $16,509
+52%
vs U.S.
Avg $16,593
Revenue mix
Local 65.1%
State 29.5%
Federal 5.3%
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 Lincoln Union Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Laguna Elementary | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Lincoln Union's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 9
- Students per teacher
- 9:1
- Resource Index
- 31/100
Similar elementary schools in Petaluma
6 comparable elementary schools (grades K-5) serving the same city.
Mary Collins Charter School at Cherry Valley
Standard public school
494 students 29.1:1 students per teacher
Loma Vista Immersion Academy
Standard public school
451 students 22.6:1 students per teacher
Sonoma Mountain Elementary
Standard public school
422 students 26.4:1 students per teacher
Corona Creek Elementary
Standard public school
403 students 22.4:1 students per teacher
Grant Elementary
Standard public school
386 students 24.1:1 students per teacher
Meadow Elementary
Standard public school
384 students 24:1 students per teacher
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 (~7 students)
Similar student-teacher ratio (~7:1)
Next steps
Verify locally before acting on Lincoln Union's federal record.
- Compare Lincoln Union against another school. Compare schools
- Laguna Joint Elementary'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 Lincoln Union
How many students attend Lincoln Union?
Lincoln Union has 7 students enrolled. It is an elementary school in Petaluma, CA.
What is the student-teacher ratio at Lincoln Union?
The student-teacher ratio at Lincoln Union is 7:1, which is 67% lower than the California average of 21.5:1 and 55% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the Resource Investment Index for Lincoln Union?
Lincoln Union has a Resource Investment Index of 44/100 (typical 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).
How does Lincoln Union rank among elementary schools in Petaluma?
By Resource Investment Index, Lincoln Union ranks #4 of 25 elementary schools in Petaluma, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Petaluma on the city page.
Is Lincoln Union a good school?
Lincoln Union earns 44/100 on the Resource Investment Index, with class sizes smaller than 98% 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 Laguna Joint Elementary?
Besides Lincoln Union, Laguna Joint Elementary also operates Laguna Elementary (9 students). See the Laguna Joint Elementary 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.