Enrollment
400
Iowa · 2024-25 NCES data
Middle school (grades 6-8) · Sergeant Bluff, IA
Sergeant Bluff-Luton Middle School
Federal NCES profile for Sergeant Bluff-Luton Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 192559001891
👥 S:T ratio 20
🌟 Gifted program 70
🎓 Counselors 20
📋 Attendance 50
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sergeant Bluff-Luton Middle School earns 40/100 on the Resource Investment Index, with class sizes larger than 93% of Iowa schools.
- #4 of 4
- public schools in Sergeant Bluff · Resource Index
- 40
- Resource Index · Typical
- 20:1
- large classes for Iowa
- 26.6%
- free-lunch eligible
Sergeant Bluff-Luton Middle School has class sizes larger than 93% of Iowa schools. Computed live against every Iowa school reporting to NCES.
By Resource Investment Index, Sergeant Bluff-Luton Middle School ranks #4 of 4 public schools in Sergeant Bluff, IA.
School address
District: Sergeant Bluff-Luton Comm School District · Iowa
NCES ID 192559001891 Verify on NCES CCD record →
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
20:1
vs 14.8:1 Iowa avg
+35% vs state
Free-lunch eligible
26.6%
vs 36.4% Iowa avg
-27% vs state
Student-teacher ratio in context
How Sergeant Bluff-Luton Middle School compares with Iowa and U.S. medians
What stands out at Sergeant Bluff-Luton Middle School
Sergeant Bluff-Luton Middle School is a mid-sized middle school in Sergeant Bluff, Iowa, enrolling 400 students.
Class loads run heavy: 20:1 is larger than about 93% of Iowa schools and 35% above the 14.8:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 26.6% of students eligible for free meals.
Enrollment of 400 puts it in the larger third of Iowa schools by headcount.
Its Resource Investment Index lands in the lower third of 1,322 scored Iowa schools.
Among 415 similarly sized, similarly resourced-need Iowa schools statewide, it ranks #364, in the lower tier once campus size and economic need are matched.
Its student body is led by White (71%) and Hispanic or Latino (11%) (diversity index 47/100).
Counselor availability sits well past the ASCA benchmark, roughly 400 students sharing each counselor, though short of the most stretched campuses.
Attendance runs somewhat below the norm, with 20.0% of students chronically absent per the 2021-22 civil-rights collection.
Sergeant Bluff-Luton Comm School District also operates Sergeant Bluff-Luton Senior High School (552 students) and Sergeant Bluff-Luton Elementary School (383 students) alongside Sergeant Bluff-Luton Middle School.
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 Sergeant Bluff-Luton Middle School compares
Sergeant Bluff-Luton Middle School on the metrics families compare, against Iowa and U.S. means.
| Metric | This school | vs Iowa | Iowa avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 20:1 | ▲ 35% | 14.8:1 | 15.7:1 |
| Free-lunch eligible | 26.6% | ▼ 27% | 36.4% | 51.7% |
| Enrollment | 400 | top 33% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
20:1
Leaner classes than 16% of US schools, heavier class loads than most.
400
Bigger than 47% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
26.6%
free-lunch eligible
- 27% below the Iowa average of 36.4%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
20:1
students per teacher
- 35% above state mean
Top 93% in Iowa - lower ratio than 7% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
20.0%
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
$12,065
per pupil, district-wide
- below Iowa avg of $12,854
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 400 students, the combined health-and-guidance staffing load for this school.
Discipline context
39
in-school suspensions + 25 out-of-school
Suspension rate: 9.8 per 100 students. Combined in-school and out-of-school rate: 16.0 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 71.3%
Hispanic or Latino 10.8%
African American 6.3%
Native Hawaiian / Pacific Islander 4.8%
Two or More 4.3%
Asian 2.5%
American Indian / Alaska Native 0.3%
Largest group: White at 71.3% of enrollment.
Student-body diversity index 47.1/100
Simpson diversity index - at 47.1, Sergeant Bluff-Luton Middle School is more mixed than the Iowa school average of 33.8.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Sergeant Bluff-Luton Comm School District, which includes Sergeant Bluff-Luton Middle School.
$12,065
Per student
-6%
vs Iowa
Avg $12,854
-27%
vs U.S.
Avg $16,593
Revenue mix
Local 52.1%
State 38.5%
Federal 9.4%
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 Sergeant Bluff-Luton Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sergeant Bluff-Luton Senior High School | Larger | Similar economic need | Lower S:T ratio |
| Sergeant Bluff-Luton Elementary School | Similar size | Similar economic need | Lower S:T ratio |
| Sergeant Bluff-Luton Primary School | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Sergeant Bluff-Luton Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 552
- Students per teacher
- 17.8:1
- Resource Index
- 43/100
- Enrollment
- 383
- Students per teacher
- 14.2:1
- Resource Index
- 51/100
- Enrollment
- 349
- Students per teacher
- 11.3:1
- Resource Index
- 48/100
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Iowa, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~400 students)
Next steps
Verify locally before acting on Sergeant Bluff-Luton Middle School's federal record.
- Compare Sergeant Bluff-Luton Middle School against another school. Compare schools
- Sergeant Bluff-Luton Comm School District'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 Sergeant Bluff-Luton Middle School
How many students attend Sergeant Bluff-Luton Middle School?
Sergeant Bluff-Luton Middle School has 400 students enrolled. It is a middle school in Sergeant Bluff, IA.
What is the student-teacher ratio at Sergeant Bluff-Luton Middle School?
The student-teacher ratio at Sergeant Bluff-Luton Middle School is 20:1, which is 35% higher than the Iowa average of 14.8:1 and 27% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Sergeant Bluff-Luton Middle School?
26.6% of students at Sergeant Bluff-Luton Middle School are eligible for free lunch, compared to the Iowa average of 36.4%.
What is the racial and ethnic makeup of Sergeant Bluff-Luton Middle School?
The largest demographic group at Sergeant Bluff-Luton Middle School is White at 71.3% of enrollment, in Sergeant Bluff, IA.
What is the Resource Investment Index for Sergeant Bluff-Luton Middle School?
Sergeant Bluff-Luton Middle School has a Resource Investment Index of 40/100 (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).
How does Sergeant Bluff-Luton Middle School rank among public schools in Sergeant Bluff?
By Resource Investment Index, Sergeant Bluff-Luton Middle School ranks #4 of 4 public schools in Sergeant Bluff, IA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Sergeant Bluff on the city page.
Is Sergeant Bluff-Luton Middle School a good school?
Sergeant Bluff-Luton Middle School earns 40/100 on the Resource Investment Index, with class sizes larger than 93% of Iowa 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 Sergeant Bluff-Luton Comm School District?
Besides Sergeant Bluff-Luton Middle School, Sergeant Bluff-Luton Comm School District also operates Sergeant Bluff-Luton Senior High School (552 students), Sergeant Bluff-Luton Elementary School (383 students), and Sergeant Bluff-Luton Primary School (349 students). See the Sergeant Bluff-Luton Comm School District 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.