Enrollment
563
California · 2024-25 NCES data
Middle school (grades 6-8) · Stockton, CA
Delta Sierra Middle
Federal NCES profile for Delta Sierra Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 24/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 062223009391
👥 S:T ratio 25
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Delta Sierra Middle earns 24/100 on the Resource Investment Index, even as it posts class sizes smaller than 74% of California schools. It is also more racially and ethnically mixed than most California schools.
- #2 of 6
- middle schools in Stockton · Resource Index
- 24
- Resource Index · Lower
- 18.8:1
- small classes for California
- 83.7%
- free-lunch eligible
Delta Sierra Middle has class sizes smaller than 74% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Delta Sierra Middle ranks #2 of 6 middle schools in Stockton, CA.
School address
District: Lodi Unified · California
NCES ID 062223009391 Verify on NCES CCD record →
Teachers (FTE)
30.0
Federal CCD staff survey
Students per teacher
18.8:1
vs 21.5:1 California avg
-13% vs state
Free-lunch eligible
83.7%
vs 55.5% California avg
+51% vs state
Student-teacher ratio in context
How Delta Sierra Middle compares with California and U.S. medians
What stands out at Delta Sierra Middle
Delta Sierra Middle is a high-poverty, mid-sized middle school in Stockton, California, enrolling 563 students.
Class sizes run a bit leaner than typical: 18.8:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need is high: 83.7% of students qualify for free meals, 51% above the California average, a Title I-weighted population that federal funding formulas prioritise.
With 563 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Against 1,950 statewide peers matched on enrollment and economic need, it ranks mid-pack at #1,054.
Its student body is led by Hispanic or Latino (44%) and Asian (25%), more mixed than most schools in the state (diversity index 71/100).
Counselor access is stretched at roughly 563 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 56.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 125 in- and out-of-school suspensions were reported for 563 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 13 expulsions at this campus for 2021-22.
Among Stockton's middle schools, it stands alongside Christa Mcauliffe Middle (734 students): Delta Sierra Middle is smaller than that campus by headcount and runs leaner classes (18.8:1 vs 22.9:1).
Lodi Unified also operates Tokay High (2,058 students) and Lodi High (1,952 students) alongside Delta Sierra 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
How Delta Sierra Middle compares
Delta Sierra 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 | 18.8:1 | ▼ 13% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 83.7% | ▲ 51% | 55.5% | 51.7% |
| Enrollment | 563 | top 37% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
18.8:1
Leaner classes than 21% of US schools, heavier class loads than most.
563
Bigger than 69% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
83.7%
free-lunch eligible
- 51% above the California average of 55.5%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
18.8:1
students per teacher
- 13% below state mean
Top 26% in California - lower ratio than 74% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
56.3%
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
$15,195
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 563 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 125 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 22.2 per 100 students. Reported via the Civil Rights Data Collection. Includes 13 expulsions.
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
Hispanic or Latino 44.4%
Asian 25.3%
African American 16.2%
Two or More 6.8%
White 5.7%
Native Hawaiian / Pacific Islander 1.2%
American Indian / Alaska Native 0.4%
Largest group: Hispanic or Latino at 44.4% of enrollment.
Student-body diversity index 70.5/100
Simpson diversity index - at 70.5, Delta Sierra Middle is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Lodi Unified, which includes Delta Sierra Middle.
$15,195
Per student
-8%
vs California
Avg $16,509
-8%
vs U.S.
Avg $16,593
Revenue mix
Local 21.6%
State 64.1%
Federal 14.4%
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 Delta Sierra Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Tokay High | Larger | Lower economic need | Similar S:T ratio |
| Lodi High | Larger | Lower economic need | Similar S:T ratio |
| Bear Creek High | Larger | Lower economic need | Similar S:T ratio |
| Ronald E. Mcnair High | Larger | Lower economic need | Similar S:T ratio |
| Lodi Middle | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Delta Sierra Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,058
- Students per teacher
- 19.8:1
- Resource Index
- 28/100
- Enrollment
- 1,952
- Students per teacher
- 17.9:1
- Resource Index
- 35/100
- Enrollment
- 1,925
- Students per teacher
- 20.1:1
- Resource Index
- 22/100
- Enrollment
- 1,644
- Students per teacher
- 17.7:1
- Resource Index
- 28/100
- Enrollment
- 893
- Students per teacher
- 20.3:1
- Resource Index
- 22/100
Similar middle schools in Stockton
5 comparable middle schools (grades 6-8) serving the same city.
Christa Mcauliffe Middle
Standard public school
734 students 22.9:1 students per teacher
Morada Middle
Standard public school
685 students 19:1 students per teacher
Sierra Middle
Standard public school
591 students 24.6:1 students per teacher
Aspire Benjamin Holt Middle
Standard public school
573 students 26:1 students per teacher
Team Charter Academy
Standard public school
180 students 18:1 students per teacher
Similar middle 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 (~563 students)
Similar student-teacher ratio (~18.8:1)
Next steps
Verify locally before acting on Delta Sierra Middle's federal record.
- Compare Delta Sierra Middle against another school. Compare schools
- Lodi 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 Delta Sierra Middle
How many students attend Delta Sierra Middle?
Delta Sierra Middle has 563 students enrolled. It is a middle school in Stockton, CA.
What is the student-teacher ratio at Delta Sierra Middle?
The student-teacher ratio at Delta Sierra Middle is 18.8:1, which is 13% lower than the California average of 21.5:1 and 20% higher 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 Delta Sierra Middle?
83.7% of students at Delta Sierra Middle are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Delta Sierra Middle?
The largest demographic group at Delta Sierra Middle is Hispanic or Latino at 44.4% of enrollment, in Stockton, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 70.5/100.
What is the Resource Investment Index for Delta Sierra Middle?
Delta Sierra Middle has a Resource Investment Index of 24/100 (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).
How does Delta Sierra Middle rank among middle schools in Stockton?
By Resource Investment Index, Delta Sierra Middle ranks #2 of 6 middle schools in Stockton, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Stockton on the city page.
Is Delta Sierra Middle a good school?
Delta Sierra Middle earns 24/100 on the Resource Investment Index, even as it posts class sizes smaller than 74% of California schools. It is also more racially and ethnically mixed than most 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.
What other schools are in Lodi Unified?
Besides Delta Sierra Middle, Lodi Unified also operates Tokay High (2,058 students), Lodi High (1,952 students), and Bear Creek High (1,925 students). See the Lodi 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.