The Sanibel School, Sanibel FL - Test Scores & Data

Original Research by School Decision on The Sanibel School

The Sanibel School sits at the heart of an island community unlike almost anywhere else in Florida. It serves pre-kindergarten through eighth grade, making it the only public school on Sanibel and the last stop before students cross the causeway to high school on the mainland. That transition is a defining feature of the school's context: families get one building for the full run of childhood and early adolescence, and then the path continues off-island.

Academically, the school's results on Florida's state assessments are strong across the board. Math proficiency is high at every tested grade, with the third grade and fifth grade results particularly impressive and the eighth grade cohort reaching full proficiency. Reading and language arts tell a similar story: fifth and eighth graders tested at or near the top of the scale, and even the grades with the lowest ELA results are still above what most Florida schools report. Science proficiency at both tested grade levels is well above typical. The school is small enough that a single cohort's composition can shift these numbers, but the pattern across subjects and grades is consistently solid, and a parent looking for an academically strong elementary and middle experience will find the evidence here encouraging.

The school's enrollment is small relative to most PK-8 schools in the state, and the student body is predominantly white with a modest share of Hispanic students and very small numbers of other groups. The share of students qualifying for free or reduced-price lunch is low, reflecting the broader economic character of Sanibel as a barrier-island community with high homeownership and very high property values. Data on students with IEPs and English learners was not available in what we received, so a parent with specific needs in those areas would want to ask the school directly about the scope of those services.

Sanibel itself is an unusual place to raise children. The island's roughly two-dozen-mile network of shared-use paths, separated from roads by grassy medians, means that biking or walking to school is genuinely practical for much of the island, something publicly reported sources describe as rare in Florida. The school shares a playground with the adjacent Sanibel Recreation Center, and the two institutions have a longstanding cooperative relationship. The J.N. "Ding" Darling National Wildlife Refuge, which covers a substantial portion of the island's interior, is a civic anchor that the school has a close partnership with, though the specifics of that curriculum connection were not in our data.

The island is still working through recovery from Hurricane Ian in 2022 and subsequent storms. Publicly reported accounts describe the causeway, the island's single road connection to the mainland, as having been rebuilt, but significant hurricane-related redevelopment remains in progress island-wide. Housing values here are dramatically higher than both the Florida state median and the national median, and have declined meaningfully in the year leading up to the most recent data, likely reflecting both storm aftermath and a broader softening in coastal Florida markets. Anyone considering buying on Sanibel should weigh that context carefully. Rental costs in the zip code are also very high relative to income benchmarks.

Families considering the Sanibel School within the Lee County school district should be aware of two district-level developments. Lee County adopted a proximity-based student assignment plan that took full effect through middle school by the 2024-2025 school year; given the island's geography and The Sanibel School's status as the only option on Sanibel, this is unlikely to change school assignment for island residents, but transportation eligibility rules are worth confirming directly with the district. Lee County also shifted to an elected, partisan superintendent beginning with the 2024 election, a governance change that families tracking district leadership and direction will want to follow. A voter-approved sales tax has funded capital improvements and school safety upgrades across the district through 2028; whether it is renewed after that date is described publicly as an open and active question.

Graduation rate does not apply here because the school does not serve high school grades. AP and dual-enrollment data were not available in what we received, which is expected for a K-8 school.

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Academic performance

How students perform on state tests, by grade, set against the district.

Math

Grade 395%

School 95% · District 56% · ▲ 39 pts above district

▲ 32 pts above state median · ▲ 40 pts above county median

Grade 480%

School 80% · District 57% · ▲ 23 pts above district

▲ 19 pts above state median · ▲ 25 pts above county median

Grade 593%

School 93% · District 48% · ▲ 45 pts above district

▲ 38 pts above state median · ▲ 49 pts above county median

Grade 678%

School 78% · District 54% · ▲ 24 pts above district

▲ 16 pts above state median · ▲ 31 pts above county median

Grade 780%

School 80% · District 31% · ▲ 49 pts above district

▲ 31 pts above state median · ▲ 54 pts above county median

Grade 8100%

School 100% · District 60% · ▲ 40 pts above district

▲ 49 pts above state median · ▲ 48 pts above county median

English language arts

Grade 376%

School 76% · District 48% · ▲ 28 pts above district

▲ 20 pts above state median · ▲ 28 pts above county median

Grade 477%

School 77% · District 50% · ▲ 27 pts above district

▲ 23 pts above state median · ▲ 30 pts above county median

Grade 596%

School 96% · District 44% · ▲ 52 pts above district

▲ 42 pts above state median · ▲ 53 pts above county median

Grade 678%

School 78% · District 54% · ▲ 24 pts above district

▲ 18 pts above state median · ▲ 26 pts above county median

Grade 788%

School 88% · District 50% · ▲ 38 pts above district

▲ 33 pts above state median · ▲ 40 pts above county median

Grade 8100%

School 100% · District 49% · ▲ 51 pts above district

▲ 46 pts above state median · ▲ 52 pts above county median

Science

Grade 587%

School 87% · District 45% · ▲ 42 pts above district

▲ 34 pts above state median · ▲ 44 pts above county median

Grade 889%

School 89% · District 43% · ▲ 46 pts above district

▲ 43 pts above state median · ▲ 50 pts above county median

This schoolLEE, same grade

Graduation rate (ACGR) reflects the federally published Adjusted Cohort Graduation Rate for the most recent year available. We refresh this data annually at the close of each academic year in June. The federal source publishes a banded rate (for example, "90-94%") instead of an exact number for cohorts small enough to risk identifying individual students. The state distribution chart, where shown, plots every school in the state with a published rate or band; schools whose rate is federally suppressed are excluded. Where the federal source publishes a band rather than an exact rate, the school is placed within its band using a stable, ID-derived offset, so its position is consistent across visits.