Enrollment
356
High
DISTRICT 260 · STATE 788
SCHOOL COMMUNITY·REGIONAL SCHOOL DISTRICT 13·NCES 090353500737
Coginchaug Regional High School
135 Pickett Ln., Durham, CT 06422 · (860) 349-7215 · Lower Connecticut River Valley Planning Region
GRADES 09–12HIGH41-RURALREGULAR SCHOOL356 STUDENTS
Student : Teacher
8.9:1
40 FTE teachers
DISTRICT 9.9:1 · STATE 12.3:1
Free / Reduced Lunch
16%
56 students
DISTRICT 17% · STATE 44%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 81 | 23% |
| Grade 10 | 94 | 26% |
| Grade 11 | 79 | 22% |
| Grade 12 | 102 | 29% |
Student demographics
29%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 25% · STATE 67% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within Regional School District 13. Attendance zones can vary; confirm enrollment with the district.
QUIET COMMUNITY
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START A DISCUSSIONWhere Coginchaug Regional High School ranks
Among high schools| Measure | This school | In Connecticut | In Lower Connecticut River Valley Planning Region |
|---|---|---|---|
| Enrollment ranked largest first | 356 | #162 of 201 | #9 of 13 |
| Students per teacher ranked fewest first | 8.9:1 | #9 of 188 | #3 of 12 |
| Diversity index ranked most diverse first | 28.7% | #174 of 188 | #9 of 12 |
| Free and reduced lunch ranked highest share first | 15.7% | #177 of 196 | #11 of 13 |
| Enrollment change since 2017-18 ranked steepest decline first | -33.1% | #5 of 120 | #2 of 11 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
356
-91 (-20%) vs 2020
-13% since 1990-91, when it was 411
Student : Teacher
8.9:1
was 11.2:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 356 | 40.2 | 8.9:1 | 16% (56) |
| 2023-24 | 359 | 38.4 | 9.3:1 | 16% (58) |
| 2022-23 | 384 | 40.8 | 9.4:1 | 16% (60) |
| 2020-21 | 447 | 40 | 11.2:1 | 14% (63) |
| 2017-18 | 532 | 51.6 | 10.3:1 | 10% (51) |
| 2015-16 | 556 | 47 | 11.8:1 | 7% (38) |
| 2010-11 | 569 | 51 | 11.2:1 | 4% (21) |
| 2000-01 | 507 | 44 | 11.5:1 | N/A |
| 1990-91 | 411 | 40 | 10.3:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Coginchaug Regional High School.
About Coginchaug Regional High School
Coginchaug Regional High School is a public high school run by Regional School District 13 in Durham, Connecticut. It is open to students in grades 9 through 12 and enrolls 356 students. That is 55% below the average of about 788 students for high schools in Connecticut.
Regional School District 13 is the district for Coginchaug Regional High School. It has 5 schools and 1,302 students.
At Coginchaug Regional High School, 84% of students are White. Smaller groups are 10% Hispanic and 3% multiracial. Census estimates put Lower Connecticut River Valley Planning Region at about 81% White, close to the school's figure. On the diversity index, which measures the chance that two random students are from different groups, Coginchaug Regional High School scores 29%.
Coginchaug Regional High School lists 40.2 full-time-equivalent teachers; that is about 8.9 students per teacher. The school's 8.9:1 compares with an average of 12.3:1 for high schools in Connecticut. Free or reduced-price lunch covers 16% of the student body. That rate is below the 32% average among public schools in Lower Connecticut River Valley Planning Region.
In the surrounding county, Lower Connecticut River Valley Planning Region, the median household earns about $104,428 a year, 46% of adults hold a bachelor's degree or higher, and about 4% of people live in poverty. Lower Connecticut River Valley Planning Region has 57 public schools with about 19,075 students, including Coginchaug Regional High School.
Frank Ward Strong School is about 0.5 miles away, making it the nearest public school. There are at least 8 more public schools inside five miles.
The National Center for Education Statistics classifies the school's location as Rural: Fringe, meaning it is in rural territory close to an urban area.
In 2024-25, the school enrolled 356, down from 447 in 2020-21. Students per teacher dropped from 11.2 in 2020-21 to 8.9 in 2024-25.
On allk12, people connected to Coginchaug Regional High School can post about athletics, class schedules, and weather closures. Current and former families are welcome to add their experience.
Lower Connecticut River Valley Planning Region at a glance
View full county profilePopulation
175,822
Census ACS
Median income
$104,428
Household, ACS
Bachelor's+
46%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
57
19,075 students
Quick facts
Related schools
Other schools in Regional School District 13
- Frank Ward Strong SchoolMiddle · 319 students
- Frederick Brewster SchoolElementary · 214 students
- John Lyman SchoolElementary · 207 students
- Middlefield Memorial SchoolElementary · 206 students
Other schools in Durham
- Frank Ward Strong SchoolMiddle · 319 students
- Frederick Brewster SchoolElementary · 214 students
Nearby schools
- Frank Ward Strong School0.5 mi · 319
- Frederick Brewster School1.7 mi · 214
- Wesley School3.3 mi · 214
- Middlefield Memorial School3.4 mi · 206
- Vinal Technical High School3.6 mi · 522
- John Lyman School4.1 mi · 207
Frequently asked questions
About Coginchaug Regional High SchoolHow large is Coginchaug Regional High School?
Coginchaug Regional High School enrolls approximately 356 students in grades 09-12.
What grades does Coginchaug Regional High School serve?
Coginchaug Regional High School serves grades 09-12.
What is the student-teacher ratio at Coginchaug Regional High School?
The student-to-teacher ratio at Coginchaug Regional High School is approximately 8.9:1 (40 FTE teachers).
What is the racial breakdown of students at Coginchaug Regional High School?
At Coginchaug Regional High School, the student body is approximately 84% White, 10% Hispanic, 1% Black, 2% Asian, 3% Two or more.
What district is Coginchaug Regional High School in?
Coginchaug Regional High School is part of Regional School District 13.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.