Enrollment
931
California · 2024-25 NCES data
Middle school (grades 6-8) · Lincoln, CA
Federal NCES profile for Twelve Bridges Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
The verdict
Twelve Bridges Middle earns 34/100 on the Resource Investment Index, with class sizes larger than 88% of California schools.
Twelve Bridges Middle has class sizes larger than 88% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Twelve Bridges Middle ranks #7 of 15 public schools in Lincoln, CA.
NCES ID 064214011705 Verify on NCES CCD record →
Enrollment
931
California · 2024-25 NCES data
Teachers (FTE)
35.0
Federal CCD staff survey
Students per teacher
26.6:1
vs 21.5:1 California avg
+24% vs state
Free-lunch eligible
15.6%
vs 55.5% California avg
-72% vs state
How Twelve Bridges Middle compares with California and U.S. medians
Larger classes than state median
26.6:1 - 5.1 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Twelve Bridges Middle is a lower-poverty, large middle school in Lincoln, California, enrolling 931 students.
Class loads run heavy: 26.6:1 is larger than about 88% of California schools and 24% above the 21.5:1 state mean, so each teacher carries more students than is typical.
Comparatively few students face economic hardship here, 15.6% free-meal eligibility runs 72% below the California average.
Enrollment of 931 puts it in the larger third of California schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 749 statewide peers matched on enrollment and economic need, it ranks mid-pack at #435.
Its student body is led by White (58%) and Hispanic or Latino (21%) (diversity index 60/100).
Counselor coverage is strong, about 103 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 30.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Western Placer Unified spends $12,666 per pupil, 23% below the California average, a leaner-resourced district than most.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among Lincoln's middle schools, it stands alongside Glen Edwards Middle (815 students): Twelve Bridges Middle is larger than that campus by headcount and runs heavier classes (26.6:1 vs 20.9:1).
Western Placer Unified also operates Twelve Bridges High (1,317 students) and Lincoln High (1,184 students) alongside Twelve Bridges 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
Twelve Bridges 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 | 26.6:1 | ▲ 24% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 15.6% | ▼ 72% | 55.5% | 51.7% |
| Enrollment | 931 | top 13% | - | - |
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 58.4% of enrollment.
Simpson diversity index - at 59.7, Twelve Bridges Middle is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Western Placer Unified, which includes Twelve Bridges 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 |
|---|---|---|---|
| Twelve Bridges High | Larger | Similar economic need | Higher S:T ratio |
| Lincoln High | Larger | Higher economic need | Lower S:T ratio |
| Glen Edwards Middle | Similar size | Higher economic need | Lower S:T ratio |
| Twelve Bridges Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Creekside Oaks Elementary | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Twelve Bridges Middle's own figures; each column derives from NCES Common Core of Data.
1 comparable middle schools (grades 6-8) serving the same city.
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 Twelve Bridges 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.
Twelve Bridges Middle has 931 students enrolled. It is a middle school in Lincoln, CA.
The student-teacher ratio at Twelve Bridges Middle is 26.6:1, which is 24% higher than the California average of 21.5:1 and 69% higher than the national average of 15.7:1.
15.6% of students at Twelve Bridges Middle are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Twelve Bridges Middle is White at 58.4% of enrollment, in Lincoln, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.7/100.
Twelve Bridges Middle 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).
By Resource Investment Index, Twelve Bridges Middle ranks #7 of 15 public schools in Lincoln, 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 Lincoln on the city page.
Twelve Bridges Middle earns 34/100 on the Resource Investment Index, with class sizes larger than 88% 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 Twelve Bridges Middle, Western Placer Unified also operates Twelve Bridges High (1,317 students), Lincoln High (1,184 students), and Glen Edwards Middle (815 students). See the Western Placer 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, “Twelve Bridges Middle, Lincoln 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/twelve-bridges-middle-ca
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