The top reported proficiency rate is 71% in English language arts. The lowest is 41% in Math.
Original Research by School Decision on Mill Falls Charter School
Mill Falls Charter School is a single-school public charter district in New Hampshire serving kindergarten through sixth grade. It operates as its own district, with one school under that name. The enrollment is small, with roughly two dozen students per grade, which is typical for a charter school of this grade band. Publicly reported information describes the school as a public Montessori option, and its website notes a Montessori approach to instruction.
The academic picture from the most recent state assessments, the NH SAS, shows a clear split between subjects. English language arts results are strong across the board. Proficiency in ELA runs well above what most New Hampshire schools post, with every tested grade from third through sixth showing a clear majority of students meeting or exceeding proficiency. Fifth grade stands out as the strongest, and even the lowest ELA grade still reflects solid performance. Reading and writing appear to be a genuine strength of this school.
Mathematics tells a different story. Proficiency rates in math decline as students move up the grades. Third and fourth grade land near the middle of the range, but fifth and sixth grade proficiency drops considerably, with roughly a third of tested students meeting proficiency in those grades. The overall math proficiency rate sits below the ELA rate by a wide margin. A parent may want to look into this further with the school, particularly how math instruction and support are structured in the upper elementary grades. Science is tested only in fifth grade in New Hampshire, and the proficiency rate there falls in a middle range, neither particularly strong nor weak.
The school does not serve high school grades, so there is no graduation rate, no AP or dual-credit data, and no college or career readiness information to report. These gaps simply reflect the grade band served.
Enrollment demographics show a student body that is majority white, with a meaningful Hispanic population and smaller Black, Asian, and multiracial groups. The school is small enough that each grade's tested cohort is modest, which means a few students can shift proficiency rates noticeably from year to year. This is worth keeping in mind when reading the results. Free or reduced-price lunch data was not available, and information on students with individualized education programs and English learners was also missing, so we cannot characterize the school's economic makeup or special-population serving from the data provided.
No locale brief or community context was available for this entity, so we cannot describe the surrounding town, housing market, or commute patterns. No neighbor comparison fact-set was provided either, so we cannot position Mill Falls against nearby districts. We looked for information on discipline, course access, staffing, and attendance, but the data sections did not include these, so we left them out rather than guess.
One development that may matter to families looking ahead: publicly reported information from the school notes that in spring 2025, Mill Falls was awarded a competitive federal Charter School Program Grant to plan a future Mill Falls Middle School. This signals a potential expansion beyond the current K through 6 span, which would extend the public Montessori option into middle school grades. This is still in the planning stage, so families should check directly with the school for timelines.
For a family considering Mill Falls, the core questions are whether a Montessori-aligned, small-school environment fits the child, and how to weigh the strong ELA results against the weaker math performance in the upper grades. The school's small size means individual attention is likely easier to come by, but it also means that cohort-level results can swing with just a few students. The potential middle school expansion may be a draw for families thinking several years ahead.
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