- Enrollment
- 669
- Students per teacher
- 10.6:1
- Resource Index
- 58/100
High school (grades 9-12) · Burlington, CT
Lewis S. Mills High School
Federal NCES profile for Lewis S. Mills High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 52/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 090352000730
👥 S:T ratio 58
🌟 Gifted program 30
🎓 Counselors 69
📋 Attendance 50
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Lewis S. Mills High School earns 52/100 on the Resource Investment Index, with class sizes smaller than 70% of Connecticut schools.
- #2 of 3
- public schools in Burlington · Resource Index
- 52
- Resource Index · Higher
- 10.6:1
- small classes for Connecticut
- 9.3%
- free-lunch eligible
Lewis S. Mills High School has class sizes smaller than 70% of Connecticut schools. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Lewis S. Mills High School ranks #2 of 3 public schools in Burlington, CT.
School address
District: Regional School District 10 · Connecticut
NCES ID 090352000730 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-21 students YoY
Lewis S. Mills High School held near 627 students from 2022-23 to 2023-24 (-21 headcount).
Teacher FTE lost 58.7 → 55.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-21 students YoY 090352000730 · Burlington, CT High · MID · TRAD
614 enr · 10.6:1 · 9.3% lunch · RII 52
Nearest enrollment peer: Har-Bur Middle School (669 students)
Lewis S. Mills High School held near 627 students from 2022-23 to 2023-24 (-21 headcount). Teacher FTE lost 58.7 → 55.0 across the same CCD years. Read with this school → · District book → · Connecticut schools → · Find another →
Lewis S. Mills High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Har-Bur Middle
Har-Bur Middle School
669 students
- This school
Lewis S. Mills High School
614 students
- Lake Garda Ele
Lake Garda Elementary School
466 students
- Harwinton Cons
Harwinton Consolidated School
374 students
What this shows Lewis S. Mills High School reports 614 students on the CCD universe file.
How Lewis S. Mills High School compares
Lewis S. Mills High School held steady on CCD headcount: ratios and free-lunch share vs Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 10.6:1 | ▼ 12% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 9.3% | ▼ 74% | 36.4% | 51.7% |
| Enrollment | 614 | top 21% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.6:1
Leaner classes than 85% of US schools, among the more generously staffed nationally.
614
Bigger than 74% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
9.3%
free-lunch eligible
- 74% below the Connecticut average of 36.4%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
10.6:1
students per teacher
- 12% below state mean
Top 30% in Connecticut - lower ratio than 70% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
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
$21,645
per pupil, district-wide
- below Connecticut avg of $24,680
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors4.0 FTE
Per 154 students, the combined health-and-guidance staffing load for this school.
Discipline context
51
in-school suspensions + 8 out-of-school
Suspension rate: 8.3 per 100 students. Combined in-school and out-of-school rate: 9.6 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Student demographics
White 65.2%
Two or More 23.9%
Hispanic or Latino 9.5%
Asian 0.8%
African American 0.3%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 65.2% of enrollment.
Student-body diversity index 50.9/100
Simpson diversity index - at 50.9, Lewis S. Mills High School is about as mixed as the Connecticut school average of 50.5.
Programs
AP courses offered 18
District finance for Regional School District 10 reports $21,645 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Lewis S. Mills High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Har-Bur Middle School | Similar size | Similar economic need | Similar S:T ratio |
| Lake Garda Elementary School | Similar size | Similar economic need | Higher S:T ratio |
| Harwinton Consolidated School | Smaller | Similar economic need | Higher S:T ratio |
Comparisons are relative to Lewis S. Mills High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 466
- Students per teacher
- 15:1
- Resource Index
- 52/100
- Enrollment
- 374
- Students per teacher
- 12.1:1
- Resource Index
- 55/100
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~614 students)
Similar student-teacher ratio (~10.6:1)
Frequently asked questions about Lewis S. Mills High School
How many students attend Lewis S. Mills High School?
Lewis S. Mills High School has 614 students enrolled. It is a high school in Burlington, CT. CCD year-over-year: 648 (2022-23) → 627 (2023-24), nearly flat (-21).
What is the student-teacher ratio at Lewis S. Mills High School?
The student-teacher ratio at Lewis S. Mills High School is 10.6:1, which is 12% lower than the Connecticut average of 12.1:1 and 32% 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 Lewis S. Mills High School?
9.3% of students at Lewis S. Mills High School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Lewis S. Mills High School?
The largest demographic group at Lewis S. Mills High School is White at 65.2% of enrollment, in Burlington, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 50.9/100.
What is the Resource Investment Index for Lewis S. Mills High School?
Lewis S. Mills High School has a Resource Investment Index of 52/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Lewis S. Mills High School rank among public schools in Burlington?
By Resource Investment Index, Lewis S. Mills High School ranks #2 of 3 public schools in Burlington, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking.
What other schools are in Regional School District 10?
Besides Lewis S. Mills High School, Regional School District 10 also operates Har-Bur Middle School (669 students), Lake Garda Elementary School (466 students), and Harwinton Consolidated School (374 students). See the Regional School District 10 district page for the complete list.