Enrollment
244
Elementary
DISTRICT 210 · STATE 378
SCHOOL COMMUNITY·DERBY SCHOOL DISTRICT·NCES 090111000174
Bradley School
155 David Humphreys Rd., Derby, CT 06418 · (203) 736-5040 · Naugatuck Valley Planning Region
GRADES KG–05ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL244 STUDENTS
B-
allk12 Grade
Scored higher than 46% of Connecticut public elementary schools
- B-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Connecticut public elementary schools
Student : Teacher
10.6:1
23 FTE teachers
DISTRICT 11.9:1 · STATE 12.6:1
Free / Reduced Lunch
47%
114 students
DISTRICT 51% · STATE 44%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 31 | 13% |
| Grade 1 | 34 | 14% |
| Grade 2 | 38 | 16% |
| Grade 3 | 49 | 20% |
| Grade 4 | 50 | 20% |
| Grade 5 | 42 | 17% |
This year's kindergarten class (31) is 26% smaller than its 5th grade class (42).
Student demographics
71%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
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
48.2%
CT avg 50.5%
Math
47.5%
CT avg 45.9%
What this means: On the CT Smarter Balanced, Connecticut's statewide test, about 48 of every 100 students at this school read and write at grade level and about 48 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 Bradley School
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Bradley School this school | 244 | 46.7% | N/A |
| Sunnyside School Shelton | 229 | 51.1% | N/A |
| Western School Naugatuck | 242 | 58.7% | N/A |
| Deer Run School East Haven | 232 | 54.7% | N/A |
| Seth G. Haley School West Haven | 332 | 52.4% | N/A |
| Chapel School Stratford | 290 | 47.6% | N/A |
Matched among Connecticut elementary 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 Bradley School ranks
Among elementary schools| Measure | This school | In Connecticut | In Naugatuck Valley Planning Region |
|---|---|---|---|
| Math proficiency ranked highest first | 47.5% | #271 of 522 | #28 of 62 |
| Reading proficiency ranked highest first | 48.2% | #280 of 519 | #30 of 62 |
| Enrollment ranked largest first | 244 | #518 of 613 | #64 of 71 |
| Students per teacher ranked fewest first | 10.6:1 | #79 of 558 | #6 of 69 |
| Diversity index ranked most diverse first | 71.4% | #39 of 560 | #1 of 69 |
| Free and reduced lunch ranked highest share first | 46.7% | #289 of 594 | #43 of 70 |
| Enrollment change since 2017-18 ranked steepest decline first | -12.5% | #150 of 378 | #17 of 43 |
Ranked against other public elementary 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
244
+13 (+6%) vs 2020
-26% since 1990-91, when it was 329
Student : Teacher
10.6:1
was 11.0:1
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 | 244 | 23 | 10.6:1 | 47% (114) |
| 2023-24 | 272 | 24 | 11.3:1 | 48% (130) |
| 2022-23 | 265 | 23 | 11.5:1 | 53% (140) |
| 2020-21 | 231 | 21 | 11.0:1 | 40% (92) |
| 2017-18 | 279 | 22.2 | 12.6:1 | 49% (136) |
| 2015-16 | 347 | 24 | 14.5:1 | 44% (153) |
| 2010-11 | 367 | 25 | 14.7:1 | 37% (137) |
| 2000-01 | 450 | 25 | 18.0:1 | N/A |
| 1990-91 | 329 | 14 | 23.5:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Bradley School.
Since 2017-18: students down 13% (279 to 244); teachers up 4% (22.2 to 23).
About Bradley School
Bradley School is an elementary school in Derby, Connecticut, according to federal school records. The grade span is kindergarten through 5, and enrollment is 244 students. Average enrollment for elementary schools in Connecticut is about 378, so this school runs 35% smaller than that.
Derby School District is the local district for Bradley School. It runs 5 schools with 1,289 students.
Enrollment at Bradley School is mixed, with Hispanic students the largest group at 38%. The school is also 33% White, 15% Black, 10% multiracial, and 2% Asian. That is higher than the 20% Hispanic share among all Naugatuck Valley Planning Region residents. By the diversity index, Bradley School comes in at 71%.
The school has about 10.6 students per teacher and 23 full-time-equivalent teachers. That ratio is under the 12.6:1 average for elementary schools in Connecticut. Federal records put free or reduced-price lunch eligibility at 47%.
The allk12 Grade for Bradley School is B-. Compared with Connecticut public elementary schools, the school scored higher than 46% on a mix of test scores, poverty-adjusted results, and recent trend.
Census estimates describe Naugatuck Valley Planning Region this way: median household income is about $86,191, the share of adults with a bachelor's degree or higher is 34%, and roughly 9% of residents are in poverty. The public schools of Naugatuck Valley Planning Region number 121 and enroll about 59,861.
The nearest other public school, Ansonia High School, is about 0.6 miles away. The count of other public schools within five miles is at least 8.
NCES lists the school's locale as Suburb: Large. That means it sits in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
A comparison of 2020-21 and 2024-25 shows enrollment up 6%, from 231 to 244.
The Bradley School community page is open for posts about enrollment questions, class placement, and PTA news. Anyone with firsthand experience at this school can post or comment.
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
- Derby Middle SchoolMiddle · 300 students
- Little Raiders UniversityElementary · 63 students
Other schools in Derby
- Derby High SchoolHigh · 360 students
- Irving SchoolElementary · 322 students
- Derby Middle SchoolMiddle · 300 students
- Little Raiders UniversityElementary · 63 students
Nearby schools
- Ansonia High School0.6 mi · 617
- Prendergast School1.0 mi · 588
- Emmett O'Brien Technical High School1.2 mi · 618
- Irving School1.4 mi · 322
- Mead School1.5 mi · 578
- Ansonia Middle School1.9 mi · 560
Frequently asked questions
About Bradley SchoolHow many students attend Bradley School?
Bradley School enrolls approximately 244 students in grades KG-05.
What grades does Bradley School serve?
Bradley School serves grades KG-05.
What is the student-teacher ratio at Bradley School?
The student-to-teacher ratio at Bradley School is approximately 10.6:1 (23 FTE teachers).
How diverse is Bradley School?
Bradley School reports a student body of 33% White, 38% Hispanic, 15% Black, 2% Asian, 10% Two or more.
What district is Bradley School in?
Bradley School is part of Derby School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.