Henderson Hammock Charter School

Henderson Hammock Charter School in Tampa, FL, is a K-8 school serving 1,154 students in the Hillsborough district, where over 79% of students qualify for free or reduced-price lunch. This school presents a unique profile: its middle school students (grades 6-8) achieve exceptional results in advanced high school-level courses, while its elementary grades (K-5) struggle to meet district and state averages. For example, in the most recent school year, 100% of middle school students were proficient in Biology 1, and 88% in Geometry—far exceeding district and state averages. In contrast, only 41% of 5th graders were proficient in math, compared to 58% district-wide. This dramatic "K-5 vs. 6-8" performance gap makes Henderson Hammock a school of two halves under one roof.

The school's middle school success is particularly striking given its high poverty rate and low spending of $8,680 per student—much less than nearby schools like Cannella Elementary ($12,830) and Bellamy Elementary ($13,270). This suggests the school has developed a highly effective program for its older students, especially in STEM and Civics, despite fewer financial resources. However, the elementary grades are not keeping pace, raising questions about whether struggling students leave before 6th grade or if the school prioritizes middle school instruction. The school's overall state ranking has fluctuated between the 24th and 46th percentiles over the last decade, currently sitting at a low 1-star rating (24th percentile), but this masks the stark divide between grade levels.

A major concern is the school's chronic absenteeism rate, which has ranged from 33.9% to 43.7% in recent years—among the highest in its peer group and significantly worse than district and state averages. This likely contributes to the elementary grades' poor performance, as students who miss school cannot build foundational skills. Henderson Hammock is an outlier compared to nearby schools: it is not like the high-performing, low-poverty Westchase Elementary (5-star, 94th percentile), nor like struggling schools such as Morgan Woods Elementary (0-1 star). Instead, it occupies a unique space—a high-poverty school with a stellar middle school program and a struggling elementary program, making it a counter-intuitive success story in advanced coursework.