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Elmer Thienes-Mary Hall Elementary School

Public Grades PK, KG-6
109th
SchoolDigger Rank ?
of 491 Connecticut Elementary Schools
Better than 78% of Connecticut elementary schools
Summary

Elmer Thienes-Mary Hall Elementary School is a PK-6 elementary school in Marlborough, CT, serving 458 students and part of the Marlborough School District, which ranks 46th out of 153 Connecticut districts. The school itself is a strong performer, ranking 109th out of 491 elementary schools in the state (78th percentile, 4 stars) for 2025-2026. Among nearby schools, it sits in the upper tier: it is essentially tied with Buttonball Lane School and clearly ahead of Hebron Elementary School, Center School, and Jack Jackter Intermediate School, while the four Glastonbury schools rank higher.

Academically, Elmer consistently outpaces state averages by wide margins. In 2025-2026, 5th grade math proficiency was 77.8% (vs. 45.8% statewide), and 5th grade science hit 72.2% (vs. 52.9%). Its 5th grade math score nearly matches Nayaug Elementary School and Hebron Avenue School, despite those schools being in the higher-ranked Glastonbury School District. The school is strongest in grades 5 and 6, with upper-grade results often exceeding those of area schools like Hebron Elementary and Jack Jackter. However, 3rd grade scores have shown some variability, though they remain above state averages.

The school also excels in attendance and resources. Chronic absenteeism is just 5.3%, compared with 16.4% statewide, and is among the lowest in the region. The student-teacher ratio is a favorable 12.1, and per-pupil spending is notably higher than in Glastonbury schools. Subgroup-specific rankings are more modest than the overall rank, which is worth monitoring, but the overall picture is of a stable, effective school that has ranked in the 75-78th percentile for five straight years. Elmer delivers strong results, invests in staff, and maintains a healthy learning environment.

458
Students ?
12.1
Student/teacher ratio ?
$19,523
Per pupil spending ?
18.6%
Free/discounted lunch ?
 25 School Dr.
       Marlborough, CT  06447

(860) 295-6220

District: Marlborough School District


Students who attend Elmer Thienes-Mary Hall Elementary School usually attend:

Middle:    RHAM Middle School
High:    RHAM High School
Racial breakdown:

White:
84.7%
Hispanic:
9.4%
Asian:
2.6%
more
 See top rated Connecticut elementary schools

 Compare Elmer Thienes-Mary Hall Elementary School to nearby elementary schools!
At a glance
Ranking trend: Holding steady — 82nd percentile in 2016 → 78th in 2026
Strengths
Test scores above the Connecticut average (69% vs 50% meeting standards)
Ranks in the top 22% of Connecticut elementary schools
Worth a look
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2025-2026) ?
This school69%
District avg69%
Connecticut avg50%
109th of 491
Connecticut public elementary schools ?
Top 22%▼ down 4 pts since 2016
From top 18% (2016) to top 22% (2026)
See the entire ranking list of Connecticut Elementary Schools →
SchoolDigger rating ?
46th of 153Marlborough School District among Connecticut districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankConnecticut percentileRating
202679.6109 of 49177.8%★★★★☆
202578.5120 of 49375.7%★★★★☆
202479.6113 of 49777.3%★★★★☆
202380.3113 of 49177.0%★★★★☆
202280.2106 of 49078.4%★★★★☆
202178.1135 of 53874.9%★★★★☆
201970.3179 of 52265.7%★★★☆☆
201871.3175 of 53267.1%★★★☆☆
201778.7135 of 51974.0%★★★★☆
201682.395 of 51881.7%★★★★☆
201585.673 of 55186.8%★★★★☆
201378.6113 of 55779.7%★★★★☆
201276.7128 of 56477.3%★★★★☆
201181.557 of 56589.9%★★★★★
201082.058 of 57990.0%★★★★★
200974.2172 of 56669.6%★★★☆☆
200875.7150 of 56573.5%★★★★☆
200774.6161 of 56871.7%★★★★☆
200676.6138 of 57075.8%★★★★☆

Female

YearAvg scoreStatewide rankConnecticut percentileRating
202670.391 of 22559.6%★★★☆☆
202580.151 of 23278.0%★★★★☆
202474.778 of 23767.1%★★★☆☆
202374.084 of 23063.5%★★★☆☆
202272.483 of 23464.5%★★★☆☆
202177.7106 of 45576.7%★★★★☆
201972.383 of 24265.7%★★★☆☆
201884.035 of 25986.5%★★★★☆

Male

YearAvg scoreStatewide rankConnecticut percentileRating
202670.678 of 23266.4%★★★☆☆
202577.463 of 23973.6%★★★★☆
202468.298 of 23357.9%★★★☆☆
202376.170 of 23169.7%★★★★☆
202283.034 of 23285.3%★★★★☆
202170.8140 of 44568.5%★★★☆☆
201964.6110 of 24755.5%★★★☆☆
201865.6120 of 26254.2%★★★☆☆

White

YearAvg scoreStatewide rankConnecticut percentileRating
202659.3114 of 24653.7%★★★☆☆
202557.3118 of 24852.4%★★★☆☆
202463.3102 of 25059.2%★★★☆☆
202362.3113 of 26256.9%★★★☆☆
202266.197 of 25261.5%★★★☆☆
202153.6164 of 32749.8%★★★☆☆
201945.1189 of 29535.9%★★☆☆☆
201848.8176 of 29640.5%★★☆☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Male (2026)66th percentile-11 vs school
Female (2026)60th percentile-18 vs school
White (2026)54th percentile-24 vs school
By subject vs Connecticut (2025-2026) ?
Science72%+19 vs state
English Language Arts69%+18 vs state
Mathematics69%+21 vs state

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Frequently Asked Questions about Elmer Thienes-Mary Hall Elementary School

In the 2024-25 school year, 458 students attended Elmer Thienes-Mary Hall Elementary School.

Students who attend Elmer Thienes-Mary Hall Elementary School usually go on to attend:

Middle : RHAM Middle School
High : RHAM High School

Elmer Thienes-Mary Hall Elementary School ranks 109th of 491 Connecticut elementary schools. SchoolDigger rates this school 4 stars out of 5.

Students at Elmer Thienes-Mary Hall Elementary School are 85% White, 9% Hispanic, 3% Asian, 2% Two or more races.

Rate Elmer Thienes-Mary Hall Elementary School!



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Latest Connecticut data All new data »
2024–25 through 2025–26 attendance data & graduation ratesNewAug 31, 2026
2025–26 NGSS, SAT & SBAC test scoresNewAug 31, 2026
2024–25 school spending dataApr 2, 2026
2024–25 attendance dataNov 6, 2025


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Connecticut Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

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