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H. H. Ellis Technical High School
C−

H. H. Ellis Technical High School

PublicHighGrades 9–12Career and Technical School

613 Upper Maple St., Danielson, CT 06239 · (860) 412-7500 · Part of Connecticut Technical Education and Career System

Killingly’s School Grade C− better than 21% of Connecticut school districts

Directions
Photo: John Phelan · CC BY-SA 4.0 · Wikimedia Commons
Students
650
Students per teacher
12:1
Free or reduced lunch
38%
Setting
Rural
Grades
9–12
The gist

What stands out about H. H. Ellis Technical High School

  • Its own letter, C−: better results than 23% of Connecticut’s public schools
  • Math proficiency 21 pts below the state
  • Reading / language arts 14 pts below the state
  • Small classes: 12 students per teacher
  • Enrollment down 9.3% since 2020–21

Test scores

2020–21
Math proficiency17%
State average 37.9%
Reading / language arts37%
State average 50.7%

Its own letter, C−, places these results among Connecticut’s 920 public schools with results. Source: EDFacts via Urban Institute Education Data Portal (SY2020-21).

Location

Directions ↗

613 Upper Maple St., Danielson

Students

Enrollment by grade
Grade 9181
Grade 10165
Grade 11150
Grade 12154
Enrollment over time
717’20
693’21
668’22
650’23
650’24

Down 9.3% since 2020–21.

Who goes here
White 82%Hispanic 14%Two or more races 3%Asian <1%American Indian/Alaska Native <1%Black <1%

As reported to NCES, share of students with a reported race or ethnicity.

Parents talk

Questions and answers about H. H. Ellis Technical High School from Killingly families.

Other schools in Connecticut Technical Education and Career System

The district →
W. F. Kaynor Technical High School
High · Grades 9–12 · Waterbury
C
831 students12:1
Bullard-Havens Technical High School
High · Grades 9–12 · Bridgeport
D
819 students10:1
H. C. Wilcox Technical High School
High · Grades 9–12 · Meriden
C
753 students12:1
Platt Technical High School
High · Grades 9–12 · Milford
C−
749 students12:1
A. I. Prince Technical High School
High · Grades 9–12 · Hartford
D
725 students9:1
Henry Abbott Technical High School
High · Grades 9–12 · Danbury
C−
721 students13:1

School facts: U.S. Department of Education (NCES), 2024–2025 school year. Test scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). A school’s letter is our own summary of its reading and math results against Connecticut’s other public schools; Killingly’s School Grade is built from its districts’ results. Map: © OpenStreetMap contributors.