📊 Data: NCES CCD 2024–2025·🔄 Updated: August 2026·Editorial standards
📍 North Grosvenordale, CT · Northeastern Connecticut Planning Region

Thompson School District

Grades Pre-K – 12th · 927 students · 3 schools · 3 zip codes

3
out of 10 Rating Below Average
State reading & math proficiency · 22nd percentile among Connecticut districts. Ranked within Connecticut only — not comparable across states.
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School District · Connecticut
Thompson School District
📍 North Grosvenordale, CT · Northeastern Connecticut Planning Region · NCES LEAID 0904530
3/10
Rating
927
Students
3
Schools
Pre-K – 12th
Grade Span
3
Zip Codes

District Contact & Information

Source: NCES CCD 2024–25
📚
Grades Served
Pre-K – 12th
📞
District Phone
🌐
📍
District Mailing Address
785 Riverside Drive, North Grosvenor, CT 06255
🎓
Enrollment
927 students
🏫
Schools
3
🏷
NCES District ID (LEAID)
0904530
🏛
District Type
Public School District

Schools in Thompson School District

3 schools listed
SchoolLevelGradesStudentsCity
Mary R. Fisher Elementary SchoolElementaryPre-K – 4th359North Grosvenordale
Thompson Middle SchoolMiddle5th – 8th262North Grosvenordale
Tourtellotte Memorial High SchoolHigh9th – 12th184North Grosvenordale

Zip Codes Served by Thompson School District

3 zip codes
Zip CodeCityCountyState
06255North GrosvenordaleNortheastern Connecticut Planning RegionCT
06262QuinebaugNortheastern Connecticut Planning RegionCT
06277ThompsonNortheastern Connecticut Planning RegionCT

Frequently Asked Questions

What zip codes are in Thompson School District?
Thompson School District serves 3 zip codes: 06255, 06262, 06277. Zip codes and district boundaries do not line up exactly, so confirm your exact address with the district office before you rely on an assignment.
How is Thompson School District rated?
Thompson School District has an overall rating of 3 out of 10 (Below Average), based on the share of students proficient in reading and math on state assessments (NCES EDFacts). That places it in the 22nd percentile among Connecticut school districts. Ratings are percentile-ranked within Connecticut only and are not comparable across states.
How many students attend Thompson School District?
The NCES Common Core of Data directory reports enrollment of 927 students across 3 schools for Thompson School District.
What grades does Thompson School District serve?
Thompson School District is listed in the NCES directory as serving grades Pre-K – 12th.
What schools are in Thompson School District?
NCES lists 3 schools operating under Thompson School District: 1 elementary, 1 middle, 1 high. Each school's grade span, enrollment and city are listed on this page. Attendance zones are set by the district and a school on this list is not necessarily the one your address is assigned to.
How do I contact Thompson School District?
You can reach Thompson School District by phone at (860)923-9581 or online at www.district.thompsonk12.org or by mail at 785 Riverside Drive, North Grosvenor, CT 06255. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.

About Thompson School District

Thompson School District is a public school district serving 3 zip codes in Connecticut, primarily in Northeastern Connecticut Planning Region. It carries an overall rating of 3/10 (Below Average), the 22nd percentile among Connecticut districts. That rating reflects the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts with a 2017–18 fallback for the rest) and is ranked only against other Connecticut districts — scores are not comparable between states. Directory details on this page come from the NCES Common Core of Data, 2024–25.

Schools in this district

NCES lists 3 schools operating under Thompson School District — 1 elementary, 1 middle and 1 high. The largest by enrollment is Mary R. Fisher Elementary School with 359 students. School-level enrollment comes from the NCES Common Core of Data school directory; a school with no reported enrollment is shown with a dash rather than a zero.

Checking your own address

District boundaries are address-specific and do not follow zip code lines exactly — a single zip code can be split between two or more districts. Use the zip codes listed above as a starting point, then confirm your assignment with the district office at (860)923-9581 before making a housing decision.