Enrollment
300
Middle
DISTRICT 258 · STATE 521
SCHOOL COMMUNITY·DERBY SCHOOL DISTRICT·NCES 090111001578
Derby Middle School
73 Chatfield Street, Derby, CT 06418 · (203) 736-1426 · Naugatuck Valley Planning Region
GRADES 06–08MIDDLE21-SUBURBTITLE IREGULAR SCHOOL300 STUDENTS
Student : Teacher
12.5:1
24 FTE teachers
DISTRICT 11.6:1 · STATE 11.3:1
Free / Reduced Lunch
62%
187 students
DISTRICT 51% · STATE 44%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 6 | 108 | 36% |
| Grade 7 | 93 | 31% |
| Grade 8 | 99 | 33% |
Student demographics
66%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 68% · 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
Students here typically continue to
Derby Middle School→Derby High School
Feeds from
Based on grade levels within Derby School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
CT Smarter Balanced 2024-25 . % Met or Exceeded StandardEnglish Language Arts
38.1%
CT avg 50.5%
Math
15.0%
CT avg 45.9%
What this means: On the CT Smarter Balanced, Connecticut's statewide test, about 38 of every 100 students at this school read and write at grade level and about 15 of 100 do math at grade level. Across all Connecticut schools, those numbers are about 51 and 46.
Source: CT Smarter Balanced. All students, all grades. See all years and grades →
Schools most like Derby Middle School
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Derby Middle School this school | 300 | 62.3% | N/A |
| Interdistrict School For Arts And Communication New London | 328 | 68.3% | N/A |
| Hillside Intermediate School Naugatuck | 292 | 64.4% | N/A |
| Ansonia Middle School Ansonia | 560 | 64.1% | N/A |
| Cross Street Intermediate School Naugatuck | 311 | 52.4% | N/A |
| Cloonan School Stamford | 447 | 61.5% | N/A |
Matched among Connecticut middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Derby Middle School ranks
Among middle schools| Measure | This school | In Connecticut | In Naugatuck Valley Planning Region |
|---|---|---|---|
| Math proficiency ranked highest first | 15.0% | #160 of 174 | #21 of 24 |
| Reading proficiency ranked highest first | 38.1% | #141 of 173 | #20 of 24 |
| Enrollment ranked largest first | 300 | #150 of 181 | #20 of 24 |
| Students per teacher ranked fewest first | 12.5:1 | #136 of 169 | #15 of 23 |
| Diversity index ranked most diverse first | 65.9% | #24 of 169 | #4 of 23 |
| Free and reduced lunch ranked highest share first | 62.3% | #31 of 180 | #6 of 24 |
| Enrollment change since 2017-18 ranked steepest decline first | -14.5% | #54 of 133 | #11 of 22 |
Ranked against other public middle 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. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
300
-22 (-7%) vs 2020
-6% since 2010-11, when it was 319
Student : Teacher
12.5:1
was 12.4:1
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 | 300 | 24 | 12.5:1 | 62% (187) |
| 2023-24 | 282 | 26 | 10.8:1 | 66% (187) |
| 2022-23 | 291 | 30 | 9.7:1 | 54% (158) |
| 2020-21 | 322 | 26 | 12.4:1 | 65% (208) |
| 2017-18 | 351 | 27.5 | 12.8:1 | 64% (224) |
| 2015-16 | 332 | 24 | 13.8:1 | 62% (205) |
| 2010-11 | 319 | 17 | 18.8:1 | 58% (186) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Derby Middle School.
Since 2017-18: students down 15% (351 to 300); teachers down 13% (27.5 to 24).
About Derby Middle School
Derby Middle School is a small middle-grades school in Derby, Connecticut, administered by Derby School District. It enrolls 300 students in 2024-25. The grades offered are 6 through 8. The school is 42% below the average for middle schools in Connecticut.
Derby School District counts 1,289 students in its 5 schools, and Derby Middle School is one of them.
The largest racial or ethnic group at Derby Middle School is Hispanic, with 48% of students. Enrollment also includes 26% White, 21% Black, and 4% multiracial. The school's Hispanic share is 28 points above the 20% share among Naugatuck Valley Planning Region residents. Measured by the diversity index, the student body scores 66%.
Derby Middle School has a student-to-teacher ratio of 12.5:1, with 24 full-time-equivalent teachers. The average for middle schools in Connecticut is 11.3:1, so this school has more students per teacher. A common income measure, free or reduced-price lunch eligibility, is 62% at Derby Middle School. On average, public schools in Naugatuck Valley Planning Region report 52%.
Five-year Census Bureau estimates for Naugatuck Valley Planning Region show that the median household earns about $86,191 a year, about 34% of adults have at least a bachelor's degree, and roughly 9% of residents are in poverty. Naugatuck Valley Planning Region has 121 public schools with about 59,861 students, including Derby Middle School.
Of the public schools around it, Derby Middle School is closest to Derby High School, less than a tenth of a mile away. Derby Middle School has at least 8 other public schools within five miles.
The school's federal locale classification is Suburb: Large.
Over 4 years, enrollment fell by 22 students, from 322 to 300.
Derby Middle School has a community page on allk12 for topics such as pickup and drop-off, after-school programs, and teacher feedback. Teachers and staff are welcome to share updates too.
Naugatuck Valley Planning Region at a glance
View full county profilePopulation
454,969
Census ACS
Median income
$86,191
Household, ACS
Bachelor's+
34%
Adults 25+
Poverty rate
9%
Below federal line
Schools in county
121
59,861 students
Quick facts
Related schools
Other schools in Derby School District
- Derby High SchoolHigh · 360 students
- Irving SchoolElementary · 322 students
- Bradley SchoolElementary · 244 students
- Little Raiders UniversityElementary · 63 students
Other schools in Derby
- Derby High SchoolHigh · 360 students
- Irving SchoolElementary · 322 students
- Bradley SchoolElementary · 244 students
- Little Raiders UniversityElementary · 63 students
Other Derby Middle schools
One other US public school is named Derby Middle. Derby Middle School is the 2nd largest of the 2.
- Derby Middle SchoolBIRMINGHAM, MI · 631 students
Nearby schools
- Derby High School0.1 mi · 360
- Little Raiders University0.1 mi · 63
- Irving School0.7 mi · 322
- Ansonia Middle School0.9 mi · 560
- Shelton High School1.4 mi · 1,308
- Perry Hill Elementary School1.6 mi · 711
Frequently asked questions
About Derby Middle SchoolHow large is Derby Middle School?
Derby Middle School enrolls approximately 300 students in grades 06-08.
What age range does Derby Middle School serve?
Derby Middle School serves students from grade 06 through grade 08.
How many students per teacher at Derby Middle School?
Approximately 12.5:1 students per teacher at Derby Middle School.
What is the racial breakdown of students at Derby Middle School?
At Derby Middle School, the student body is approximately 26% White, 48% Hispanic, 21% Black, 1% Asian, 4% Two or more.
Who oversees Derby Middle School?
Derby Middle School is overseen by Derby School District in Naugatuck Valley Planning Region.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.