📊 Data: NCES CCD 2024–2025·🔄 Updated: August 2026·Editorial standards
📍 Durham, CT · Lower Connecticut River Valley Planning Region

Regional School District 13

Grades Pre-K – 12th · 1,365 students · 5 schools · 3 zip codes

5
out of 10 Rating Average
State reading & math proficiency · 48th percentile among Connecticut districts. Ranked within Connecticut only — not comparable across states.
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School District · Connecticut
Regional School District 13
📍 Durham, CT · Lower Connecticut River Valley Planning Region · NCES LEAID 0903535
5/10
Rating
1,365
Students
5
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 Website
📍
District Mailing Address
135-A Pickett Lane, Durham, CT 06422
🎓
Enrollment
1,365 students
🏫
Schools
5
🏷
NCES District ID (LEAID)
0903535
🏛
District Type
Public School District

Schools in Regional School District 13

5 schools listed
SchoolLevelGradesStudentsCity
Frederick Brewster SchoolElementaryPre-K – 1st214Durham
John Lyman SchoolElementary2nd – 3rd207Middlefield
Middlefield Memorial SchoolElementary4th – 5th206Middlefield
Frank Ward Strong SchoolMiddle6th – 8th319Durham
Coginchaug Regional High SchoolHigh9th – 12th356Durham

Zip Codes Served by Regional School District 13

3 zip codes
Zip CodeCityCountyState
06422DurhamLower Connecticut River Valley Planning RegionCT
06455MiddlefieldLower Connecticut River Valley Planning RegionCT
06481RockfallLower Connecticut River Valley Planning RegionCT

Frequently Asked Questions

What zip codes are in Regional School District 13?
Regional School District 13 serves 3 zip codes: 06422, 06455, 06481. 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 Regional School District 13 rated?
Regional School District 13 has an overall rating of 5 out of 10 (Average), based on the share of students proficient in reading and math on state assessments (NCES EDFacts). That places it in the 48th percentile among Connecticut school districts. Ratings are percentile-ranked within Connecticut only and are not comparable across states.
How many students attend Regional School District 13?
The NCES Common Core of Data directory reports enrollment of 1,365 students across 5 schools for Regional School District 13.
What grades does Regional School District 13 serve?
Regional School District 13 is listed in the NCES directory as serving grades Pre-K – 12th.
What schools are in Regional School District 13?
NCES lists 5 schools operating under Regional School District 13: 3 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 Regional School District 13?
You can reach Regional School District 13 by phone at (860)349-7200 or online at www.rsd13ct.org or by mail at 135-A Pickett Lane, Durham, CT 06422. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.

About Regional School District 13

Regional School District 13 is a public school district serving 3 zip codes in Connecticut, primarily in Lower Connecticut River Valley Planning Region. It carries an overall rating of 5/10 (Average), the 48th 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 5 schools operating under Regional School District 13 — 3 elementary, 1 middle and 1 high. The largest by enrollment is Coginchaug Regional High School with 356 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)349-7200 before making a housing decision.