Summary:
Zip code 29464, encompassing Mount Pleasant, South Carolina, is served by a single public high school, Lucy Garrett Beckham High, which educates students in grades 9 through 12 as part of the Charleston 01 school district.
As the only high school in this area, Lucy Garrett Beckham High is an elite public institution, consistently ranking in the top 10% of all South Carolina high schools and earning a 5-star rating for three consecutive years. Its academic performance is exceptional, with proficiency rates dramatically exceeding both district and state averages across all subjects. For instance, in 2025-2026, English 2 proficiency reached 95.82%, and U.S. History proficiency was 83.82%, representing a 21-point advantage over the state average. The school also boasts a 95.5% graduation rate and a remarkably low 0.9% dropout rate, both far better than state figures. With a student-to-teacher ratio of 17.3:1 and per-student spending of $17,746, the school is well-resourced to support its large enrollment of 1,757 students.
While the school's test scores and graduation outcomes are outstanding, one area of concern is its chronic absenteeism rate of 23.7%, which is slightly higher than both the district (20.5%) and state (22.3%) averages. This is a notable contradiction given the school's high achievement, but the low dropout rate suggests that even absent students are still completing their education. Year-over-year data shows remarkable stability in test scores, with only minor fluctuations, indicating reliable instructional quality. For families in Mount Pleasant, this single high school offers a consistently excellent education that outperforms nearly every other school in the state, making it a top-tier choice for parents seeking strong academic outcomes and high graduation rates.
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