The top reported proficiency rate is 91% in English language arts. The lowest is 84% in Science.
Original Research by School Decision on Sullivan's Island Elementary
Sullivan’s Island Elementary is a regular public school serving pre-kindergarten through fifth grade, located on a small, affluent barrier island at the entrance to Charleston Harbor. The school is part of the Charleston 01 district, a large countywide system that includes schools across the city of Charleston, Mount Pleasant, and several beach communities. Because the school serves only elementary grades, there is no graduation rate to report, and state testing data covers the grades that are assessed: third through fifth.
The academic picture is one of very strong performance across all tested subjects. In math, English language arts, and science, the proportion of students scoring at the proficient level or above was high in every grade for which data was reported. In fourth-grade science, proficiency was also strong. The most recent data available for social studies, from a prior year, similarly showed a high share of students meeting the standard. These results place the school in a position of strength academically, particularly when considered against typical state averages or the broader county context. However, the comparison tool could not produce a direct ranking because the cohort of similar districts within Charleston County was too small to calculate a meaningful position; the available data simply shows a school performing at a consistently high level.
The student body is small by design, given the island’s limited residential population and the school’s grade span. The enrollment is predominantly white, with small shares of Hispanic students and students who identify as two or more races, and even smaller numbers from other racial and ethnic backgrounds. The share of students who qualify for free or reduced-price meals is low, reflecting the affluence of the surrounding community. Data on students with disabilities and English learners was not available, so a parent looking into those supports would want to ask the school directly about its special education and multilingual learner programs.
The community context is distinctive. Sullivan’s Island is a narrow, roughly three-mile-long barrier island with a small year-round population and a mix of historic homes and beach cottages. It is connected to Mount Pleasant by a swing bridge and to Isle of Palms by a bridge over Breach Inlet. The town has several historic districts listed on the National Register of Historic Places, Fort Moultrie and the Charleston Light are major civic anchors, and the island’s beaches draw visitors and residents alike. Housing values are very high, well above state and national medians, and the island is considered an affluent suburb of Charleston. Most residents commute off the island for work. Growth is constrained by geography and historic preservation, so the school’s enrollment is likely to remain stable rather than surge.
No recent parent-relevant changes were found for the Charleston 01 district, such as new bonds, curriculum shifts, or boundary adjustments. The school’s website and any specific program offerings were not provided in the available data, so a parent interested in after-school activities, arts, enrichment, or gifted services would need to contact the school directly to learn what is available. The school does not appear to have magnet or charter status, and no Title I designation was reported.
For a family that can afford the area’s high cost of housing, Sullivan’s Island Elementary offers a strong academic foundation in a small, coastal setting. The peer group is economically homogeneous, and the school’s test results are consistently high. A parent looking for more diversity of background or a wider range of specialized programs may want to explore other options within the Charleston 01 district, but for those already living on the island or considering a move there, this school delivers what the data can measure: solid academic performance in a tight-knit, affluent beach community.
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