IS 340
Test scores
NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)What this means: On the NYS Assessments, New York's statewide test, about 42 of every 100 students at this school read and write at grade level and about 23 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are down about 14 points since 2023, while math scores are down about 23 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 40% of students here test proficient in math and reading, compared with the roughly 44% typical for New York 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 York's top nor bottom 10%.
7-year change
SY 2017-18 vs SY 2024-25About IS 340
Set in BROOKLYN, New York, IS 340 is a tiny junior high, overseen by NEW YORK CITY GEOGRAPHIC DISTRICT #17. It instructs 136 students across grades 6 through 8. Enrollment runs roughly 74% smaller than the state mean of about 531.
NEW YORK CITY GEOGRAPHIC DISTRICT #17 comprises 49 schools with combined enrollment of 16,990 students; IS 340 is among them.
In terms of who attends, IS 340 records that Black students make up the majority at 57%. The remainder reads as 39% Hispanic. That is meaningfully more Black than the county at large, where the share is closer to 28%.
In terms of school funding signals, On paper, IS 340 has 15 full-time-equivalent teachers, translating to a class-load average of around 9.0:1. The state averages around 10.3:1, so this campus is tighter than the state norm typical. About 85% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator.
After controlling for student poverty, IS 340 tracks the demographic baseline. The model predicts 43.6% given the school's FRL share; actual proficiency is 40.0%.
In the area at large, ACS estimates for Kings County put median household income runs about $80,263, about 42% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 15%. IS 340 is one of 583 public schools in Kings County (combined enrollment of about 291,697 students).
PS 9 SARAH SMITH GARNET SCHOOL (THE) is the nearest neighboring public school, about 0.2 miles from this campus. Within five miles, there are 8 other public schools. Among the 7 schools in that immediate cluster with test data (this one included), IS 340 ranks 7th on composite proficiency, behind the local average of 59.4%.
Geographically, the school is in a metropolitan area.
Trend over the last 7 years. IS 340's enrollment has shrank 40% since 2018, when it stood at 225 (now 136). The Hispanic share of enrollment ticked up from 17% to 39% over that span. Class-load math has tightened: from 13.2:1 in 2018 to 9.0:1 in 2025.
On the community side, members of the IS 340 community share and discuss fundraisers, lost-and-found posts, and report-card season. Posting is open to anyone connected to the school.
Kings County at a glance
View full county profileQuick facts
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