Summary
San Mateo Elementary School is a K-5 public school in Jacksonville, FL, serving 520 students within the Duval County School District, where a lower-than-average percentage of students (39.6%) receive free or reduced lunch, indicating a relatively stable economic demographic compared to nearby schools.
San Mateo has historically been a strong performer, consistently earning 4-star ratings and ranking in the top 30% of Florida elementary schools from 2016 to 2023. However, the school has experienced a recent decline, dropping from the 78th percentile in 2022-2023 to the 57th percentile in 2025-2026, resulting in a 3-star rating. Despite this, San Mateo still outperforms the district average in every tested subject and grade level (ELA, Math, and Science), making it an efficient school that does more with less—its spending of $8,840 per student is the lowest among comparable nearby schools. A key concern is chronic absenteeism, which at 37.4% is higher than the state average (31.4%) and the highest among top-performing peers like New Berlin Elementary (37.1%) and Louis S. Sheffield Elementary (36.2%), suggesting attendance issues may be holding the school back from returning to its former 4-star status.
Academically, San Mateo shows a consistent strength in 5th-grade science, with 54% proficiency in 2025-2026, above district and state averages, and strong performance in 3rd and 5th-grade math. However, a persistent weakness is 4th-grade math, where only 54% of students were proficient in 2025-2026, compared to 74% of 3rd graders and 63% of 5th graders—a pattern that has held for three consecutive years. This contrasts sharply with nearby Biscayne Elementary (84% proficiency in 4th-grade math) and New Berlin Elementary (71%). The comparison with New Berlin is particularly telling: both schools serve similar demographics and have comparable spending, but New Berlin outperforms San Mateo in nearly every metric, especially in 3rd-grade ELA (78% vs. 66%) and math (78% vs. 74%). If San Mateo can address its attendance issues and close the 4th-grade math gap, it has clear potential to compete with top-performing peers like New Berlin.
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