Summary:
In zip code 77478, there is one high school, Dulles High School, serving grades 9 through 12 in Sugar Land, Texas, as part of the Fort Bend Independent School District (Isd).
Dulles High School is a large, stable institution with 2,165 students and a student-teacher ratio of 17.7:1. It has earned a consistent 4-star rating from SchoolDigger for the past three years, placing it in the top 28% of Texas high schools. The school excels in most core academic areas, with STAAR End-of-Course exam proficiency rates in Biology (79.21%), English I Reading (67.61%), English II Reading (68.99%), and U.S. History (78.66%) all surpassing both the district and state averages. Its graduation rate of 93.4% also exceeds the district average of 92.5%, and the dropout rate is a low 1.1%.
The most notable finding is a significant weakness in mathematics. Algebra I proficiency stands at just 34.89%, which is dramatically lower than the district (60.15%) and state (54.03%) averages. However, there is a positive trend: proficiency in Algebra I jumped from 22.82% to 34.89% between the 2024-2025 and 2025-2026 school years, indicating the school is actively addressing this challenge. With 43.7% of students economically disadvantaged, Dulles High School outperforms its district in four of five core subjects, suggesting effective support for its student body. Overall, this is a strong, high-performing school with a clear area for focused improvement in math.
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