I.S. 340

Test scores at I.S. 340 tell a complicated story. The school's 41.5% ELA proficiency and 16.9% math proficiency both fall well below District 13 averages (53.1% and 45.9% respectively), placing it near the bottom of district performance. The data shows a troubling recent reversal — math scores plummeted from 47.8% in 2023 to just 16.9% in 2025, while ELA dropped from 51.1% to 41.5% over the same period. Looking longer-term, the school made substantial gains from 2016-2019 before declining. Grade-level breakdown shows Grade 7 performing slightly better in both subjects, while Grade 8 math particularly struggles at just 8.7%. With an overall score of 1.17/4, the school sits well below the district average of 1.98.

Here's where I.S. 340 tells a more hopeful story. Parent satisfaction sits at 93%, exceeding the district average, and trust metrics are exceptional — 97% of parents trust teachers, and 96% trust the principal. Perhaps most striking, teachers report 100% instruction quality. However, there's a disconnect: chronic absenteeism is a serious concern at 72.5%, significantly impacting learning. The suspension rate of 5% is notably higher than the district average of 1.4%, though the number of suspensions has remained flat at 7 over the past three years. Teacher response to the survey was very low (only 12 responses), which makes the 100% instruction quality rating notable but should be interpreted cautiously. Teacher-principal trust is solid at 88%, and teacher collegial trust is 80%.

I.S. 340's student body is predominantly Black (59%) and Hispanic (34%), reflecting the diversity of the surrounding neighborhood. With a diversity index of 53% and an economic need index of 80.2%, the school serves a population with significant socioeconomic challenges. About 28% of students have IEPs. The neighborhood of Prospect Heights is affluent and highly educated (78.7% BA+ rate, median household income $150,273), creating an interesting contrast between community demographics and school population — suggesting the school draws from a broader geographic area than just the immediate neighborhood.

Prospect Heights is a highly desirable Brooklyn neighborhood known for its cultural institutions, excellent transit connectivity, and family-friendly atmosphere. The neighborhood scores very high on education orientation (97.32) and family density (69.73), meaning families with children are common. Transit access is strong at 76.63. However, safety indicators show some challenges — the crime density and collision rates suggest parents should be aware of neighborhood conditions. The area offers access to Prospect Park, the Brooklyn Museum, and the Brooklyn Botanic Garden, providing rich cultural and recreational resources.

The school is located on Sterling Place in a walkable neighborhood with strong subway access via nearby stations. Families in the area typically walk or take public transit.