📊 What this ranking measures
Rankings are based on academic achievement — the share of students scoring proficient or above on state reading and math assessments (NCES EDFacts, 2021–22 for most districts), ranked against other districts in the same state — not on spending, district size, or staffing. See full methodology →
16 Rated Districts in the Waterbury-Shelton, CT Metro Area
EDFacts 2021–22 · percentile among Connecticut districts
| Metro Rank | District | District Office | Rating | State Percentile |
|---|---|---|---|---|
| #1 | Cheshire School District | Cheshire | 10/10 Excellent | 90th |
| #2 | Regional School District 15 | Middlebury | 7/10 Good | 61st |
| #3 | Regional School District 16 | Prospect | 7/10 Good | 60th |
| #4 | Regional School District 14 | Woodbury | 6/10 Average | 53rd |
| #5 | Shelton School District | Shelton | 6/10 Average | 51st |
| #6 | Wolcott School District | Wolcott | 6/10 Average | 51st |
| #7 | Oxford School District | Oxford | 5/10 Average | 46th |
| #8 | Watertown School District | Watertown | 5/10 Average | 40th |
| #9 | Plymouth School District | Terryville | 4/10 Below Average | 37th |
| #10 | Thomaston School District | Thomaston | 4/10 Below Average | 33rd |
| #11 | Seymour School District | Seymour | 3/10 Below Average | 29th |
| #12 | Bristol School District | Bristol | 3/10 Below Average | 26th |
| #13 | Naugatuck School District | Naugatuck | 2/10 Poor | 17th |
| #14 | Derby School District | Derby | 1/10 Poor | 9th |
| #15 | Waterbury School District | Waterbury | 1/10 Poor | 4th |
| #16 | Ansonia School District | Ansonia | 1/10 Poor | 3rd |
Best School Districts in the Waterbury-Shelton, CT Metro Area (2026)
Counties are assigned to metropolitan areas using the U.S. Census Bureau's 2023 delineation, and each district is placed in the county of its NCES directory listing. Ratings come from EDFacts 2021–22 (Connecticut) and are percentile-ranked within the district's own state. Always confirm your assignment by address.
Frequently Asked Questions
What is the best-rated school district in the Waterbury-Shelton, CT metro area? ▼
Among the 16 rated districts in the Waterbury-Shelton, CT metro area, the highest-rated is Cheshire School District (Cheshire), rated 10/10 (Excellent) and in the 90th percentile of Connecticut districts on EDFacts 2021–22 reading and math proficiency.
How are these rankings calculated? ▼
Each district's rating comes from the share of its students scoring proficient or above on state reading and math assessments, percentile-ranked against all rated districts in its state and converted to a 1–10 scale. Full methodology here.