Enrollment
383
Elementary
DISTRICT 385 · STATE 405
SCHOOL COMMUNITY·BUTLER PUBLIC SCHOOL DISTRICT·NCES 340252004168
Aaron Decker School
98 DECKER ROAD, BUTLER, NJ 07405 · (973) 492-2037 · Morris County
GRADES PK–04ELEMENTARY21-SUBURBREGULAR SCHOOL383 STUDENTS
B-
allk12 Grade
Scored higher than 48% of New Jersey public elementary schools
- BTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- C+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded New Jersey public elementary schools
Student : Teacher
11.3:1
34 FTE teachers
DISTRICT 11.2:1 · STATE 11.4:1
Free / Reduced Lunch
27%
103 students
DISTRICT 30% · STATE 41%
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 |
|---|---|---|
| Pre-K | 26 | 7% |
| Kindergarten | 64 | 17% |
| Grade 1 | 62 | 16% |
| Grade 2 | 67 | 17% |
| Grade 3 | 80 | 21% |
| Grade 4 | 84 | 22% |
This year's kindergarten class (64) is 24% smaller than its 4th grade class (84).
Student demographics
55%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 52% · STATE 71% · 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 Butler Public School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
NJSLA 2024-25 . % Meeting or Exceeding ExpectationsEnglish Language Arts
54.0%
NJ avg 53.1% . +4.4pp since 2023
Math
50.3%
NJ avg 41.6% . +7.0pp since 2023
What this means: On the NJSLA, New Jersey's statewide test, about 54 of every 100 students at this school read and write at grade level and about 50 of 100 do math at grade level. Across all New Jersey schools, those numbers are about 53 and 42. Reading and writing scores are up about 4 points since 2023, while math scores are up about 7 points.
NJSLA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 54.0% | 50.3% |
| 2023-24 | 49.6% | 43.3% |
% Meeting or Exceeding Expectations, all students and all tested grades.
Source: NJSLA. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
49.5%
composite math + reading, all grades
Predicted
51.4%
based on NJ schools with similar FRL share
Beats by
-1.9pp
below demographic expectation
What this means: About 50% of students here test proficient in math and reading, compared with the roughly 51% typical for New Jersey schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among New Jersey's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Aaron Decker School
Aaron Decker School's state test result (49.5% proficient) is higher than 3 of the 4 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Aaron Decker School this school | 383 | 26.9% | 49.5% |
| Newbury Early Learning Center HOWELL | 365 | 28.8% | 47.0% |
| Greenville Elementary School HOWELL | 345 | 29.6% | 48.9% |
| Catherine A Dwyer Elementary School WHARTON | 346 | 27.5% | 54.5% |
| Memorial Elementary School NORTH HALEDON | 349 | 25.5% | 44.5% |
| Adelphia Early Learning Center FREEHOLD | 357 | 30.8% | N/A |
Matched among New Jersey 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 Aaron Decker School ranks
Among elementary schools| Measure | This school | In New Jersey | In Morris County |
|---|---|---|---|
| State test proficiency ranked highest first | 49.5% | #531 of 1,290 | #61 of 76 |
| Math proficiency ranked highest first | 50.3% | #577 of 1,319 ▲ 110 | #63 of 77 ▲ 5 |
| Reading proficiency ranked highest first | 54.0% | #615 of 1,319 ▲ 61 | #66 of 77 ▲ 2 |
| Enrollment ranked largest first | 383 | #765 of 1,562 | #29 of 92 |
| Students per teacher ranked fewest first | 11.3:1 | #691 of 1,390 | #61 of 89 |
| Diversity index ranked most diverse first | 55.4% | #658 of 1,392 | #40 of 89 |
| Free and reduced lunch ranked highest share first | 26.9% | #909 of 1,481 | #23 of 90 |
| Enrollment change since 2017-18 ranked fastest growth first | +0.8% | #513 of 545 | #40 of 40 |
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
383
+9 (+2%) vs 2020
0% since 1990-91, when it was 384
Student : Teacher
11.3:1
was 10.7:1
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 | 383 | 33.9 | 11.3:1 | 27% (103) |
| 2023-24 | 369 | 37.9 | 9.7:1 | 23% (85) |
| 2022-23 | 366 | 37.9 | 9.7:1 | 25% (93) |
| 2020-21 | 374 | 35 | 10.7:1 | 22% (84) |
| 2017-18 | 380 | 36.3 | 10.5:1 | 27% (101) |
| 2015-16 | 386 | 34 | 11.3:1 | 23% (88) |
| 2010-11 | 371 | 23 | 16.1:1 | 13% (49) |
| 2000-01 | 367 | 24 | 15.3:1 | 14% (50) |
| 1990-91 | 384 | 25 | 15.4:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Aaron Decker School.
Since 2017-18: students up 1% (380 to 383); teachers down 7% (36.3 to 33.9).
About Aaron Decker School
Aaron Decker School is a mid-sized elementary school in BUTLER, New Jersey, (ZIP code 07405). It offers pre-K through 4 and has 383 students enrolled.
Butler Public School District runs 3 schools with a combined 1,156 students. Aaron Decker School is one of them.
More than half of enrollment at Aaron Decker School is White: 57%. Other groups include 35% Hispanic, 4% multiracial, and 3% Asian. The county population is about 68% White. On the diversity index, which measures the chance that two random students are from different groups, Aaron Decker School scores 55%.
The student-to-teacher ratio is 11.3:1. The school has 33.9 full-time-equivalent teachers. The average for elementary schools in New Jersey is about 11.4:1. Federal data show 27% of students (103) are eligible for free or reduced-price lunch. The 19% average for public schools in Morris County is 8 points lower.
On the allk12 Grade, Aaron Decker School lands at B-, ahead of 48% of New Jersey public elementary schools.
A school with Aaron Decker School's lunch-eligibility share in New Jersey is predicted to score 51.4%. Aaron Decker School scores 49.5%, 1.9 points below that line.
In Morris County, where the school is located, the median household earns about $137,326 a year, roughly 58% of adults have a four-year degree or more, and the share of residents below the poverty line is 3%. Public schools in Morris County number 156, with about 72,239 students.
Aaron Decker School's closest public school neighbor is Butler High School, about 1.1 miles away. Counting only straight-line distance, at least 8 other public schools are within five miles. In a group of 8 nearby schools with scores, Aaron Decker School ranks 5th on average proficiency.
Under the NCES locale system, Aaron Decker School is Suburb: Large.
Federal data show 374 students in 2020-21 and 383 in 2024-25, a difference of under 3%.
Use the discussion section to ask about homework, tutoring, and testing dates at Aaron Decker School. Current and former families are welcome to add their experience.
Morris County at a glance
View full county profilePopulation
514,528
Census ACS
Median income
$137,326
Household, ACS
Bachelor's+
58%
Adults 25+
Poverty rate
3%
Below federal line
Schools in county
156
72,239 students
Quick facts
Related schools
Other schools in Butler Public School District
- Butler High SchoolHigh · 482 students
- Richard Butler SchoolMiddle · 291 students
Other schools in BUTLER
- Butler High SchoolHigh · 482 students
- Richard Butler SchoolMiddle · 291 students
Nearby schools
- Butler High School1.1 mi · 482
- Kiel Elementary School1.1 mi · 374
- Apshawa Elementary School1.2 mi · 266
- Pearl R. Miller Middle School1.2 mi · 378
- Kinnelon High School1.2 mi · 507
- Richard Butler School1.2 mi · 291
Frequently asked questions
About Aaron Decker SchoolWhat is the total enrollment at Aaron Decker School?
Aaron Decker School enrolls approximately 383 students in grades PK-04.
Is Aaron Decker School an elementary, middle, or high school?
Aaron Decker School is an elementary school covering grades PK-04.
What is the student-teacher ratio at Aaron Decker School?
The student-to-teacher ratio at Aaron Decker School is approximately 11.3:1 (34 FTE teachers).
What is the racial breakdown of students at Aaron Decker School?
At Aaron Decker School, the student body is approximately 57% White, 35% Hispanic, 1% Black, 3% Asian, 4% Two or more.
Who oversees Aaron Decker School?
Aaron Decker School is overseen by Butler Public School District in Morris County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.