The top reported proficiency rate is 60% in Science. The lowest is 50% in English language arts.
Original Research by School Decision on Hosmer
Hosmer is one of three recently rebuilt elementary schools in the Watertown Public Schools district, serving students from pre-kindergarten through fifth grade. The school opened a newly constructed or renovated building for the 2025-2026 school year, part of a district-wide facilities investment that voters approved. The new building features modern classrooms, expanded common areas, and improved accessibility, which represents a tangible upgrade to the physical learning environment for students and staff.
The school is a regular public school and is not a charter or magnet school. It serves a student body that is diverse in its composition. White students form the largest group, followed by a substantial Hispanic population, and smaller shares of Asian, Black, and multiracial students. There is also a small presence of Native Hawaiian or Pacific Islander students. Data on the share of students who qualify for free or reduced-price lunch, receive special education services, or are English learners was not available for this school year; a parent may want to ask the school directly for those figures to get a fuller picture of the student support context.
On state assessments, Hosmer's results are mixed when compared to other school districts across Middlesex County. The school's overall proficiency across tested subjects and grades falls just below the midpoint among the county's districts for the most recent school year. In math, about half of students scored at the proficient level or above. In English language arts, the figure is similar, with slightly under half of students meeting that bar. Science results were higher, with a stronger share of tested students reaching proficiency; however, science testing in Massachusetts at the elementary level covers only a subset of grades, so that figure reflects a narrower group of students. The school had full participation in testing, which gives confidence that the results reflect the full student body in tested grades.
Looking at performance over time, Hosmer's proficiency rates have moved around considerably. In English language arts, the rate ranged from a low point in an earlier year to a high point in the year just before the pandemic, and has settled around the midpoint more recently. In math, the pattern is similar, with a low in the pandemic-recovery year and a subsequent climb before a modest step back in the most recent year. These fluctuations are common in a school of this size and grade band, but a parent may want to look into how the school supports students whose scores have not reached the proficient level, particularly in math and English language arts.
Watertown itself is a densely settled city within Greater Boston, with a mix of residential neighborhoods and significant commercial and institutional development. The city has a strong Armenian-American cultural presence, and the Arsenal Street corridor has seen life-science-focused redevelopment. The housing market in the area is expensive, with home values and rents well above national benchmarks. The school is located in a compact city with a walkable built environment, especially around neighborhood squares, and MBTA bus routes provide transit connectivity; there is no rail station in the city. Major employers include Tufts Health Plan, NESN, and the Perkins School for the Blind.
The Watertown district is also in the midst of a major high school building project, with a new Watertown High School under construction and projected to open in 2027. At the elementary level, the district has shifted to a structured literacy curriculum aligned with the science of reading, beginning in the 2023-2024 school year. This means that Hosmer students are receiving a phonics-based approach to reading instruction, which is a notable and relatively recent curriculum change. For a family considering this school, Hosmer offers a newly built elementary facility in a diverse, urban-suburban community, with academic performance that is near the middle of the pack for its county and a district that is actively investing in its school buildings and literacy instruction. The housing market in Watertown is expensive, and the absence of data on some student demographics and support populations is a gap a prospective family may want to fill by speaking with the school directly.
See more original research from School Decision →