Enrollment
319
Connecticut · 2024-25 NCES data
Elementary school (grades K-5) · Danbury, CT
Federal NCES profile for Mill Ridge Primary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 39/100.
The verdict
Mill Ridge Primary School earns 39/100 on the Resource Investment Index, with class sizes larger than 84% of Connecticut schools.
Mill Ridge Primary School has class sizes larger than 84% of Connecticut schools. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Mill Ridge Primary School ranks #9 of 13 elementary schools in Danbury, CT.
NCES ID 090102000154 Verify on NCES CCD record →
Enrollment
319
Connecticut · 2024-25 NCES data
Teachers (FTE)
23.0
Federal CCD staff survey
Students per teacher
13.9:1
vs 12.1:1 Connecticut avg
+15% vs state
Free-lunch eligible
28.0%
vs 36.4% Connecticut avg
-23% vs state
How Mill Ridge Primary School compares with Connecticut and U.S. medians
Slightly above state median
13.9:1 - 1.8 above the Connecticut state median of 12.1:1, indicating larger average class loads than typical schools in the state.
Mill Ridge Primary School is a mid-sized elementary school in Danbury, Connecticut, enrolling 319 students.
Class loads run somewhat heavier than typical: 13.9:1 puts it in the larger third of Connecticut schools by student-teacher ratio.
Its free-meal eligibility rate of 28.0% lands close to the Connecticut typical range, neither a high- nor low-need campus by this measure.
Enrollment of 319 puts it in the smaller third of Connecticut schools by headcount.
Its Resource Investment Index lands in the lower third of 1,003 scored Connecticut schools.
Among 250 similarly sized, similarly resourced-need Connecticut schools statewide, it ranks #227, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (57%) and White (20%) (diversity index 62/100).
Attendance runs somewhat below the norm, with 23.2% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Danbury School District spends $19,075 per pupil, 20% below the Connecticut average, a leaner-resourced district than most.
Among Danbury's elementary schools, it stands alongside Park Avenue School (562 students): Mill Ridge Primary School is smaller than that campus by headcount and runs heavier classes (13.9:1 vs 10.8:1).
Danbury School District also operates Danbury High School (3,612 students) and Broadview Middle School (1,070 students) alongside Mill Ridge 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
Mill Ridge Primary School on the metrics families compare, against Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.9:1 | ▲ 15% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 28.0% | ▼ 23% | 36.4% | 51.7% |
| Enrollment | 319 | top 71% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 56.6% of enrollment.
Simpson diversity index - at 61.8, Mill Ridge Primary School is more mixed than the Connecticut school average of 50.5.
District-wide per-pupil expenditure for Danbury School District, which includes Mill Ridge Primary School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Danbury High School | Larger | Higher economic need | Higher S:T ratio |
| Broadview Middle School | Larger | Higher economic need | Similar S:T ratio |
| Rogers Park Middle School | Larger | Higher economic need | Lower S:T ratio |
| Westside Middle School Academy | Larger | Similar economic need | Higher S:T ratio |
| Park Avenue School | Larger | Higher economic need | Lower S:T ratio |
Comparisons are relative to Mill Ridge Primary School's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
Matched by enrollment size and by staffing ratio across all of Connecticut, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Mill Ridge Primary School's federal record.
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.
Mill Ridge Primary School has 319 students enrolled. It is an elementary school in Danbury, CT.
The student-teacher ratio at Mill Ridge Primary School is 13.9:1, which is 15% higher than the Connecticut average of 12.1:1 and 11% lower than the national average of 15.7:1.
28.0% of students at Mill Ridge Primary School are eligible for free lunch, compared to the Connecticut average of 36.4%.
The largest demographic group at Mill Ridge Primary School is Hispanic or Latino at 56.6% of enrollment, in Danbury, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.8/100.
Mill Ridge Primary School has a Resource Investment Index of 39/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Mill Ridge Primary School ranks #9 of 13 elementary schools in Danbury, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Danbury on the city page.
Mill Ridge Primary School earns 39/100 on the Resource Investment Index, with class sizes larger than 84% of Connecticut 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.
Besides Mill Ridge Primary School, Danbury School District also operates Danbury High School (3,612 students), Broadview Middle School (1,070 students), and Rogers Park Middle School (888 students). See the Danbury School District district page for the complete list.
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.
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Last updated:
PlainSchools, “Mill Ridge Primary School, Danbury CT.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/mill-ridge-primary-school-ct
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