Brass Castle School
School pathway
Test scores
NJSLA 2024-25 . % Meeting or Exceeding ExpectationsWhat this means: On the NJSLA, New Jersey's statewide test, about 53 of every 100 students at this school read and write at grade level and about 36 of 100 do math at grade level. Across all New Jersey schools, those numbers are about 53 and 42. Reading and writing scores are down about 4 points since 2023, while math scores are down about 8 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 43% of students here test proficient in math and reading, compared with the roughly 54% 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%.
7-year change
SY 2017-18 vs SY 2024-25About Brass Castle School
Located at 16 CASTLE STREET, in WASHINGTON, New Jersey, Brass Castle School is a compact K-5 school that serves 261 students (grades 4 through 6), operated by Washington Township School District. That puts it 36% smaller than the typical public school in New Jersey, which averages around 405 students.
Brass Castle School is one of 16 schools operated by Washington Township School District, a district that serves 9,381 students overall.
Demographically, Brass Castle School records that 75% of the student body identifies as White; the rest breaks down as 14% Hispanic, 5% Black, 4% multiracial, 2% Asian. That mix tracks the wider county fairly closely.
In terms of school funding signals, Staff filings list 25 full-time-equivalent teachers, which works out to roughly 10.4:1 students per teacher. The state averages around 11.4:1, so this campus is tighter than the state norm typical. About 22% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. That share is south of Warren County's rate of about 36%.
On a residual basis (actual vs predicted given the student mix), Brass Castle School tracks the demographic baseline. The model predicts 54.2% given the school's FRL share; actual proficiency is 43.2%.
Zooming out to the county, ACS estimates for Warren County put median household earnings sit near $100,869, 37% of adults hold a bachelor's degree or higher, and the poverty rate sits near 6%. Across Warren County's 41 public schools (combined enrollment of about 15,462 students), Brass Castle School is one campus in the mix.
The closest other public school is Washington Memorial Elementary School, roughly 0.8 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Brass Castle School comes 2nd of 8 in the immediate cluster, higher than the nearby-schools average of 39.1%.
The campus sits in a town-center setting.
Five-year trend. Looking back 7 years, enrollment at Brass Castle School has edged down 9%, going from 286 students in 2018 to 261 in 2025. The White share of enrollment declined from 80% to 75% over that span.
On allk12, posts here usually surface around fundraisers, lost-and-found posts, and report-card season. Posting is open to anyone connected to the school.
Warren County at a glance
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