Excellent
#189 of 990 schools in CT
Top 19% in state
Catherine Kolnaski Magnet School
Elementary School · Groton School District · Groton, CT
A Groton School District elementary school where students score 8 points above what's typical for similar communities.
500 Poquonnock Rd., Groton, CT 06340
- Math 42% proficient (2022)
- Reading 52% proficient (2022)
- 11.5:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Catherine Kolnaski Magnet School score 47% proficient, which is above what's typical for similar communities (expected: 39%).
2022 EdFacts proficiency
Most recent published year. School vs. CT average.
Trend
↓ DecliningProficiency has fallen 5 points since 2019, to 47% in 2022, across a 14-year record (2009–2022).
Show all 13 years
Multi-year averages used by the rating model: math 48% (multi-year average, 2009-2022) · reading/ELA 53% (multi-year average, 2009-2022)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 26 test records from CT state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
53.4%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Catherine Kolnaski Magnet School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.
Getting around & local context
- Walk 20Car-Dependent
- Bike 20Somewhat Bikeable
- City Safety: Elevated883/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Groton), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$77,768
Median home value
$275,500
Median rent
$1,492/mo
College educated
38.1%
Homeownership
42.2%
Poverty rate
12.2%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 06340; this is area context, not an attendance boundary.
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Sacred Heart SchoolPrivate · tuition | 6.4private | PK–8 | 0.6 mi | 112 | Compare → |
| Thames River Magnet SchoolEnrollment path unverified | 7.6 | PK–5 | 0.6 mi | 531 | Compare → |
| Regional Multicultural Magnet SchoolEnrollment path unverified | 4.7 | K–5 | 2.1 mi | 495 | Compare → |
| C.b. Jennings International Elementary MagnetEnrollment path unverified | 5.1 | K–5 | 2.3 mi | 463 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Groton School District
- Schools in district
- 7
- Rank in district
- #1 of 7
- District spending per student
- $24,893NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 8.7%Census SAIPE · 2024
Catherine Kolnaski Magnet School is listed in Groton School District; a district label does not verify attendance for an address.
About Catherine Kolnaski Magnet School
Catherine Kolnaski Magnet School is a public elementary school in Groton, CT, part of Groton School District, serving approximately 369 students in grades Kindergarten-5th with a 11.5:1 student-teacher ratio. It holds a MySchoolScout rating of 8.2 out of 10 and ranks #189 of 990 schools in CT. State assessment records show 48% math proficiency (multi-year average, 2009-2022) and 53% reading/ELA proficiency (multi-year average, 2009-2022).
Frequently asked questions
Common questions about Catherine Kolnaski Magnet School
What grades does Catherine Kolnaski Magnet School serve?
Catherine Kolnaski Magnet School serves students in grades Kindergarten through 5th.
How many students attend Catherine Kolnaski Magnet School?
Catherine Kolnaski Magnet School has an enrollment of approximately 369 students.
What is the student-teacher ratio at Catherine Kolnaski Magnet School?
The student-teacher ratio at Catherine Kolnaski Magnet School is 11.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Catherine Kolnaski Magnet School rank in CT?
Catherine Kolnaski Magnet School ranks #189 of 990 schools in CT.
What is Catherine Kolnaski Magnet School's MySchoolScout rating?
Catherine Kolnaski Magnet School has a current MySchoolScout rating of 8.2 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Catherine Kolnaski Magnet School?
Based on loaded state assessment records, Catherine Kolnaski Magnet School has 48% math proficiency (multi-year average, 2009-2022) and 53% reading/ELA proficiency (multi-year average, 2009-2022).
Is Catherine Kolnaski Magnet School a charter school?
No, Catherine Kolnaski Magnet School is not a charter school. It is a traditional public school operated by the local school district.
Is Catherine Kolnaski Magnet School a Title I school?
No, Catherine Kolnaski Magnet School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Catherine Kolnaski Magnet School?
53.4% of students at Catherine Kolnaski Magnet School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- Kindergarten – 5th
- Enrollment
- 369
- Student-Teacher Ratio
- 11.5:1
- Teachers (FTE)
- 32
- Type
- regular
- Setting
- Midsize Suburb
- County
- Connecticut Planning Region 8
- Chronic Absenteeism (SY 2022-23)
- 15.4%
- Phone
- (860) 449-5608
- Area population (ZIP 06340)
- 29,833
- Area average commute
- 18.4 min
- Area median age
- 33.2
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2022 EdFacts · Low confidence
- Older source: 2022 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2022 EdFacts · Low confidence
- Older source: 2022 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 06340; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2022; directory SY 2023–24
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