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Massachusetts public elementary school

Hosmer Elementary

Watertown school district

B
overall grade

Ranks #265 of 895 Massachusetts elementary schools — top 30%.

Overall rank
#265
of 895 schools
ELA · 2024–2026
50%
MA average 42%
Math · 2024–2026
50%
MA average 43%
Avg class size
19
748 students

ELA and Math show the share of 3rd graders meeting or exceeding expectations on the MCAS, averaged over 2024–2026.

How it compares

What stands out
  • Strongest area: ELA, in the top 40% statewide. An average of 50% of 3rd graders met or exceeded expectations over 2024–2026, vs 42% statewide.
  • Trend: Chronic absence has fallen from 18.7% in 2022 to 12.5% in 2025.
  • Trend: ELA is down 6 points since 2023 (57% to 51%).
Where it stands among 895 Massachusetts elementary schools
Bottom of MATop of MA
Overall
Above averagetop 30% · #265
ELA
Averagetop 40% · #353
Math
Averagetop 41% · #363
Attendance
Averagetop 44% · #390
Teacher quality
Averagetop 42% · #373

MCAS standings use the 2024–2026 average of grade 3 results, so one unusual year doesn't swing a school's ranking. Scores in the sections below are from 2026.

Test scores

ELA has been above the state average in 6 of 8 years since 2018. Math has been above the state average in 5 of 8 years since 2018.

Share of 3rd graders meeting or exceeding expectations on the MCAS. There was no test in 2020.

English Language Arts51%in 2026 · state 43%
8 points above the state
0%50%100%This school51%State43%20172019202120232026
Math54%in 2026 · state 42%
12 points above the state
0%50%100%This school54%State42%20172019202120232026
Detailed scores
Average scaled score, ELA (500+ = meeting expectations)495
Average scaled score, Math (500+ = meeting expectations)498
Achievement percentile vs. MA schools (ELA · Math)47th · 56th

Students & classrooms

Classrooms
Students748
Average class size19MA avg 18
Students per teacher10.7MA avg 12.1
Who attends
White
52.4%
Hispanic/Latino
21.1%
Multi-Race
11.1%
Asian
8.7%
Black/African American
6.4%
American Indian/Alaska Native
0.1%
Native Hawaiian/Pacific Islander
0.1%

43.6% girls · 56.3% boys

Student needs
Low incomeLower than average
This school
32.4%
MA avg
42.8%
English learnersHigher than average
This school
22.2%
MA avg
17.2%
Students with disabilitiesAbout average
This school
21.8%
MA avg
22.3%

Teachers

Licensed teachersAbout average
This school
98.6%
MA avg
98.4%
Experienced teachersAbout average
This school
77.8%
MA avg
73.2%
Teaching in their fieldAbout average
This school
96.1%
MA avg
92.4%
Stayed from last yearBetter than average
This school
94.2%
MA avg
82.7%
More staffing details
Teachers (full-time equivalent)70.6
Principal retention50%
General education teachers58.2%
Special education teachers32%
English learner teachers9.8%

Attendance & safety

Attendance rateAbout average
This school
94.6%
MA avg
94.1%
Chronically absentmissed 10%+ of daysBetter than average
This school
12.5%
MA avg
15.6%

9.2 days absent per student (MA avg 10.3) · Suspensions: 0.4% out-of-school, 0.4% in-school (MA elementary avg 2% / 1%)

About Watertown

Middlesex County · Greater Boston — Inside I-95
Avg single-family home value$663KMA median $588K
Avg property tax bill$8,094MA median $6,814
Tax rate$12.20 per $1,000MA median $12.40
Income per person$64,792MA median $47,872
Local kids in public school84.8%
Town bond ratingAAA
Free cash reserves16.1% of budget

Watertown district profile · What could you afford here? · All towns A–Z

Town figures are FY2026 averages for single-family homes from the Massachusetts Department of Revenue. Assessed values usually run below recent sale prices. "MA median" is the median of the state's 351 towns.

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