Mannsville Manor Elementary School, Mannsville NY

Original Research by School Decision on Mannsville Manor Elementary School

Mannsville Manor Elementary School is a small elementary school serving prekindergarten through fifth grade in a rural village setting in southeastern Jefferson County, New York. The school has an enrollment of roughly a few hundred students, with roughly half qualifying for free or reduced-price lunch. The student body is predominantly white, with a small number of Hispanic and multiracial students and very few students of other races.

The school's recent state assessment results show moderate proficiency across tested grades and subjects. In math, students in grades three through five scored at proficiency rates ranging from just above half to roughly three-fifths, with fifth grade performing slightly better than third and fourth. English language arts proficiency was lower, with third and fourth graders scoring in the low-to-mid forties range (in percentage terms), while fifth graders reached above half. Science testing was available only for fifth grade, where proficiency was above three-fifths. The school has no state assessment data for sixth grade, which reflects that the school serves only through fifth grade. Social studies testing data from the state is older and not current. When the school's proficiency index is compared to other districts in Jefferson County, it falls below the midpoint among county peers.

These results suggest that while the school is functioning and participating in state assessments, academic proficiency lags both the state's expectations and the county's typical performance. Reading comprehension and language skills appear to be softer areas than mathematics. A parent may want to look into further detail with the school about how it is addressing proficiency gaps and what classroom supports are in place, particularly for English language arts in the third and fourth grade bands.

The school operates within the South Jefferson Central School District, a multi-building district also serving a combined middle and high school in neighboring Adams and a building in Adams Center. The district recently approved a 2025-2026 budget through a public vote. Beginning in fall 2025, the district has implemented a statewide New York policy restricting student use of smartphones and internet-enabled personal devices throughout the entire school day, a change that affects daily classroom life and routines. The district has also conducted ongoing capital outlay projects at its secondary facilities, including electrical and general construction work in recent years.

Mannsville itself is a very small rural village on U.S. Route 11 in the Town of Ellisburg, about twenty miles south of Watertown. It is car-dependent, with housing dominated by older single-family homes and a village center anchored by the Mannsville Free Library, Lilac Park, and the Municipal Building. The regional economy is shaped by the school district itself as a major employer and by Fort Drum military installation farther north. Population in Mannsville has declined over decades due to rural location and limited economic opportunity, though recent estimates suggest a modest stabilization. Median home value in the area is moderate, and median household income is above the national benchmark. Schools and secondary services sit in neighboring Adams rather than in Mannsville, so the village itself serves primarily an elementary enrollment.

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Academic performance

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

Math

Grade 355%

School 55% · District 65% · ▼ 9 pts below district

▼ 3 pts below state median · ▲ 2 pts above county median

Grade 453%

School 53% · District 44% · ▲ 9 pts above district

▼ 5 pts below state median · ▲ 1 pts above county median

Grade 558%

School 58% · District 47% · ▲ 11 pts above district

▲ 7 pts above state median · ▲ 17 pts above county median

Grade 60%

School 0% · District 56% · ▼ 56 pts below district

▼ 45 pts below state median · ▼ 48 pts below county median

English language arts

Grade 341%

School 41% · District 51% · ▼ 10 pts below district

▼ 11 pts below state median · ▼ 5 pts below county median

Grade 441%

School 41% · District 46% · ▼ 5 pts below district

▼ 11 pts below state median · ▼ 1 pts below county median

Grade 554%

School 54% · District 56% · ▼ 1 pts below district

even with state median · ▲ 8 pts above county median

Grade 60%

School 0% · District 45% · ▼ 45 pts below district

▼ 46 pts below state median · ▼ 44 pts below county median

Science

Grade 561%

School 61% · District 53% · ▲ 8 pts above district

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

Social studies

Grade 596%

School 96% · district not reported

▲ 5 pts above state median · ▲ 3 pts above county median

This schoolSOUTH JEFFERSON CENTRAL SCHOOL DISTRICT, 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.

Proficiency by household income

English language arts

Grade 3Lower-income29%Higher-income54%25 pp gap

Grade 4Lower-income33%Higher-income50%17 pp gap

Mathematics

Grade 3Lower-income36%Higher-income75%39 pp gap

Grade 4Lower-income36%Higher-income73%37 pp gap