Enrollment
552
Iowa · 2024-25 NCES data
High school (grades 9-12) · Sergeant Bluff, IA
Sergeant Bluff-Luton Senior High School
Federal NCES profile for Sergeant Bluff-Luton Senior High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 192559001460
👥 S:T ratio 29
📚 AP courses 15
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 75
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sergeant Bluff-Luton Senior High School earns 38/100 on the Resource Investment Index, with class sizes larger than 88% of Iowa schools.
- #3 of 4
- public schools in Sergeant Bluff · Resource Index
- 38
- Resource Index · Typical
- 17.8:1
- large classes for Iowa
- 23.3%
- free-lunch eligible
Sergeant Bluff-Luton Senior High School has class sizes larger than 88% of Iowa schools. Computed live against every Iowa school reporting to NCES.
By Resource Investment Index, Sergeant Bluff-Luton Senior High School ranks #3 of 4 public schools in Sergeant Bluff, IA.
School address
District: Sergeant Bluff-Luton Comm School District · Iowa
NCES ID 192559001460 Verify on NCES CCD record →
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
17.8:1
vs 14.8:1 Iowa avg
+20% vs state
Free-lunch eligible
23.3%
vs 36.4% Iowa avg
-36% vs state
Student-teacher ratio in context
How Sergeant Bluff-Luton Senior High School compares with Iowa and U.S. medians
What stands out at Sergeant Bluff-Luton Senior High School
Sergeant Bluff-Luton Senior High School is a large high school in Sergeant Bluff, Iowa, enrolling 552 students.
Class loads run heavy: 17.8:1 is larger than about 88% of Iowa schools and 20% 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 23.3% of students eligible for free meals.
Enrollment of 552 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.
Against 278 statewide peers matched on enrollment and economic need, it ranks mid-pack at #193.
Its student body is led by White (76%) and Hispanic or Latino (8%) (diversity index 41/100).
On the academic-pipeline side it reports 3 Advanced Placement courses.
Counselor access is stretched at roughly 1127 students per counselor, well above the ASCA-recommended 250:1 ceiling.
10.1% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Sergeant Bluff-Luton Comm School District also operates Sergeant Bluff-Luton Middle School (400 students) and Sergeant Bluff-Luton Elementary School (383 students) alongside Sergeant Bluff-Luton Senior High 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 Senior High School compares
Sergeant Bluff-Luton Senior High 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 | 17.8:1 | ▲ 20% | 14.8:1 | 15.7:1 |
| Free-lunch eligible | 23.3% | ▼ 36% | 36.4% | 51.7% |
| Enrollment | 552 | top 15% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.8:1
Leaner classes than 26% of US schools, heavier class loads than most.
552
Bigger than 68% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
23.3%
free-lunch eligible
- 36% 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
17.8:1
students per teacher
- 20% above state mean
Top 88% in Iowa - lower ratio than 12% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
10.1%
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
$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
Counselors0.5 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
24
in-school suspensions + 15 out-of-school
Suspension rate: 4.3 per 100 students. Combined in-school and out-of-school rate: 7.1 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 75.9%
Hispanic or Latino 8.3%
African American 7.1%
Two or More 4.5%
Asian 2.7%
Native Hawaiian / Pacific Islander 1.1%
American Indian / Alaska Native 0.4%
Largest group: White at 75.9% of enrollment.
Student-body diversity index 40.9/100
Simpson diversity index - at 40.9, Sergeant Bluff-Luton Senior High School is more mixed than the Iowa school average of 33.8.
Programs
AP courses offered 3
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Sergeant Bluff-Luton Comm School District, which includes Sergeant Bluff-Luton Senior High 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 Senior High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sergeant Bluff-Luton Middle School | Smaller | Similar economic need | Higher S:T ratio |
| Sergeant Bluff-Luton Elementary School | Smaller | Similar economic need | Lower S:T ratio |
| Sergeant Bluff-Luton Primary School | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Sergeant Bluff-Luton Senior High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 400
- Students per teacher
- 20:1
- Resource Index
- 40/100
- 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 high 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 (~552 students)
Similar student-teacher ratio (~17.8:1)
Next steps
Verify locally before acting on Sergeant Bluff-Luton Senior High School's federal record.
- Compare Sergeant Bluff-Luton Senior High 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 Senior High School
How many students attend Sergeant Bluff-Luton Senior High School?
Sergeant Bluff-Luton Senior High School has 552 students enrolled. It is a high school in Sergeant Bluff, IA.
What is the student-teacher ratio at Sergeant Bluff-Luton Senior High School?
The student-teacher ratio at Sergeant Bluff-Luton Senior High School is 17.8:1, which is 20% higher than the Iowa average of 14.8:1 and 13% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Sergeant Bluff-Luton Senior High School?
23.3% of students at Sergeant Bluff-Luton Senior High 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 Senior High School?
The largest demographic group at Sergeant Bluff-Luton Senior High School is White at 75.9% of enrollment, in Sergeant Bluff, IA.
What is the Resource Investment Index for Sergeant Bluff-Luton Senior High School?
Sergeant Bluff-Luton Senior High School has a Resource Investment Index of 38/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sergeant Bluff-Luton Senior High School rank among public schools in Sergeant Bluff?
By Resource Investment Index, Sergeant Bluff-Luton Senior High School ranks #3 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 Senior High School a good school?
Sergeant Bluff-Luton Senior High School earns 38/100 on the Resource Investment Index, with class sizes larger than 88% 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 Senior High School, Sergeant Bluff-Luton Comm School District also operates Sergeant Bluff-Luton Middle School (400 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.