The top reported proficiency rate is 43% in English language arts. The lowest is 14% in Math.
Original Research by School Decision on Great Bay Charter School
Great Bay Charter School is a small New Hampshire charter entity serving grades 5 through 12, organized as a district with two schools, a middle school and a high school. The total enrollment is small enough that each grade cohort numbers in the teens or low twenties, which shapes nearly everything about how this place works and how its data reads.
The school is in a period of rapid change. According to publicly reported information from the school itself, Great Bay Charter School recently expanded downward to become a full K through 12 organization, adding grades 3 and 4 in 2024 and kindergarten through grade 2 in 2025. That elementary expansion is still new. The current enrollment figures reflect the older grade configuration, with no students counted in grade 5 and the tested middle grades carrying very small cohorts. The same public reporting indicates the school will relocate to a new campus in Exeter for the 2026 through 2027 year, with a natural playground planned for elementary students. Families considering this school should know the physical setting and the grade span are both in transition.
Academically, the state assessment picture is limited and difficult to interpret with confidence. New Hampshire's state test, the NH SAS, reports proficiency for grades 3 through 8 in math and English language arts, and for science in grades 5, 8, and 11. For Great Bay Charter School, the grade 3, 4, and 5 results are suppressed because no students were tested in those grades, which aligns with the school's recent expansion into those grade bands. The grade 6 math proficiency is suppressed as well. Where results do appear, the tested counts in each grade are in the single or low double digits, meaning a single student's performance shifts the proficiency rate considerably.
In English language arts, the middle grade results that are reported show a mixed picture. Grade 6 proficiency landed near the middle of the range, grade 7 was somewhat above that, and grade 8 came in lower. The overall ELA proficiency across the reported grades sat near the midpoint. In math, the reported grade 7 and grade 8 proficiency rates were low, and the overall math proficiency across reported grades was quite low. Science results for grade 8 were reported in a range that begins at zero, with no students reaching proficiency in that cohort. No trend data is available because only one year of results is reported here.
These numbers warrant care rather than alarm. With ten or fifteen students per tested grade, a single year's results tell you something about a small group of children, not about a stable institutional pattern. A parent may want to look into this further with the school, asking how the charter approaches math instruction in particular and what the longer-term plan is for building proficiency across these small cohorts.
The student body is predominantly white, with small numbers of students identifying as Asian, Black, Hispanic, or two or more races. The school reports no free or reduced-price lunch data, no individualized education program data, and no English learner data in the profile we received, so we cannot characterize the economic makeup or the level of special-population support from these records. The school does not report a graduation rate in the data provided, and no course access, staffing, discipline, or attendance information is available here either. We looked for a locale brief, housing context, and neighbor comparison, but none was included, so we cannot place the school within its community or against nearby districts from this dataset.
What the available information does tell a parent is this. Great Bay Charter School is a very small, choice-based public charter pathway in New Hampshire that is actively growing, both in grade span and in physical campus. Its English language arts results in the middle grades are middling to decent, its math and science results are weak on the page, and every number comes from cohorts small enough that they shift easily year to year. The school is heading into a move to Exeter and a new facility, and it has recently committed to serving a full K through 12 range. For a family drawn to a small charter environment and willing to engage directly with the school about its academic approach, this is a place in active transition worth a close conversation. For a family looking for established, stable test results or a larger peer cohort, the current profile will not yet provide that.
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