Enrollment
349
Iowa · 2024-25 NCES data
Other / mixed grade configuration · Sergeant Bluff, IA
Sergeant Bluff-Luton Primary School
Federal NCES profile for Sergeant Bluff-Luton Primary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataOther / mixed grade configurationNCES 192559001461
👥 S:T ratio 55
🌟 Gifted program 30
🎓 Counselors 65
📋 Attendance 41
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sergeant Bluff-Luton Primary School earns 48/100 on the Resource Investment Index, with class sizes smaller than 85% of Iowa schools. It is also more racially and ethnically mixed than most Iowa schools.
- #2 of 4
- public schools in Sergeant Bluff · Resource Index
- 48
- Resource Index · Typical
- 11.3:1
- small classes for Iowa
- 34.4%
- free-lunch eligible
Sergeant Bluff-Luton Primary School has class sizes smaller than 85% of Iowa schools. Computed live against every Iowa school reporting to NCES.
By Resource Investment Index, Sergeant Bluff-Luton Primary School ranks #2 of 4 public schools in Sergeant Bluff, IA.
School address
District: Sergeant Bluff-Luton Comm School District · Iowa
NCES ID 192559001461 Verify on NCES CCD record →
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
11.3:1
vs 14.8:1 Iowa avg
-24% vs state
Free-lunch eligible
34.4%
vs 36.4% Iowa avg
-5% vs state
Student-teacher ratio in context
How Sergeant Bluff-Luton Primary School compares with Iowa and U.S. medians
What stands out at Sergeant Bluff-Luton Primary School
Sergeant Bluff-Luton Primary School is a mid-sized combined-grade school in Sergeant Bluff, Iowa, enrolling 349 students.
Classes run notably small here: at 11.3:1, Sergeant Bluff-Luton Primary School is leaner than roughly 85% of Iowa schools and 24% under the state's 14.8:1 norm, more adult attention per pupil than most peers.
Its free-meal eligibility rate of 34.4% lands close to the Iowa typical range, neither a high- nor low-need campus by this measure.
With 349 students, its enrollment sits close to the Iowa median campus size.
Its Resource Investment Index sits near the middle of the pack among 1,322 scored Iowa schools.
Against 456 statewide peers matched on enrollment and economic need, it ranks mid-pack at #225.
Its student body is led by White (62%) and Two or More (11%), more mixed than most schools in the state (diversity index 58/100).
Counselor coverage is strong, about 175 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 23.8% 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 Middle School (400 students) alongside Sergeant Bluff-Luton Primary 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 Primary School compares
Sergeant Bluff-Luton Primary 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 | 11.3:1 | ▼ 24% | 14.8:1 | 15.7:1 |
| Free-lunch eligible | 34.4% | ▼ 5% | 36.4% | 51.7% |
| Enrollment | 349 | top 41% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.3:1
Leaner classes than 81% of US schools, among the more generously staffed nationally.
349
Bigger than 40% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
34.4%
free-lunch eligible
- 5% 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
11.3:1
students per teacher
- 24% below state mean
Top 15% in Iowa - lower ratio than 85% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
23.8%
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
Counselors2.0 FTE
Per 175 students, the combined health-and-guidance staffing load for this school.
Discipline context
4
in-school suspensions + 1 out-of-school
Suspension rate: 1.1 per 100 students. Combined in-school and out-of-school rate: 1.4 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 62.2%
Two or More 11.2%
African American 10.3%
Hispanic or Latino 10.0%
Asian 2.6%
Native Hawaiian / Pacific Islander 2.6%
American Indian / Alaska Native 1.1%
Largest group: White at 62.2% of enrollment.
Student-body diversity index 57.8/100
Simpson diversity index - at 57.8, Sergeant Bluff-Luton Primary School is more mixed than the Iowa school average of 33.8.
Programs
Funding & spending
District-wide per-pupil expenditure for Sergeant Bluff-Luton Comm School District, which includes Sergeant Bluff-Luton Primary 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 Primary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sergeant Bluff-Luton Senior High School | Larger | Lower economic need | Higher S:T ratio |
| Sergeant Bluff-Luton Middle School | Similar size | Similar economic need | Higher S:T ratio |
| Sergeant Bluff-Luton Elementary School | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Sergeant Bluff-Luton Primary 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
- 400
- Students per teacher
- 20:1
- Resource Index
- 40/100
- Enrollment
- 383
- Students per teacher
- 14.2:1
- Resource Index
- 51/100
Similar other 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 (~349 students)
Similar student-teacher ratio (~11.3:1)
Next steps
Verify locally before acting on Sergeant Bluff-Luton Primary School's federal record.
- Compare Sergeant Bluff-Luton Primary 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 Primary School
How many students attend Sergeant Bluff-Luton Primary School?
Sergeant Bluff-Luton Primary School has 349 students enrolled. It is a public school in Sergeant Bluff, IA.
What is the student-teacher ratio at Sergeant Bluff-Luton Primary School?
The student-teacher ratio at Sergeant Bluff-Luton Primary School is 11.3:1, which is 24% lower than the Iowa average of 14.8:1 and 28% lower 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 Sergeant Bluff-Luton Primary School?
34.4% of students at Sergeant Bluff-Luton Primary 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 Primary School?
The largest demographic group at Sergeant Bluff-Luton Primary School is White at 62.2% of enrollment, in Sergeant Bluff, IA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 57.8/100.
What is the Resource Investment Index for Sergeant Bluff-Luton Primary School?
Sergeant Bluff-Luton Primary School has a Resource Investment Index of 48/100 (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 Primary School rank among public schools in Sergeant Bluff?
By Resource Investment Index, Sergeant Bluff-Luton Primary School ranks #2 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 Primary School a good school?
Sergeant Bluff-Luton Primary School earns 48/100 on the Resource Investment Index, with class sizes smaller than 85% of Iowa schools. It is also more racially and ethnically mixed than most 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 Primary School, Sergeant Bluff-Luton Comm School District also operates Sergeant Bluff-Luton Senior High School (552 students), Sergeant Bluff-Luton Middle School (400 students), and Sergeant Bluff-Luton Elementary School (383 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.