A
Horizons K-8 School
PublicElementaryGrades K–8CharterAlternative Education School
4545 Sioux Drive, Boulder, CO 80303 · (720) 561-5580
Students
358
Students per teacher
14:1
Free or reduced lunch
18%
Setting
City
Grades
K–8
What stands out about Horizons K-8 School
- School Grade A: near the top of Colorado’s public schools
- Math proficiency 24 pts above the state
- Reading / language arts 20 pts above the state
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency54.5%
State average 30.5%
Reading / language arts67%
State average 47%
Location
Directions ↗
4545 Sioux Drive, Boulder
Students
Enrollment by grade
Kindergarten28
Grade 139
Grade 242
Grade 343
Grade 443
Grade 543
Grade 640
Grade 743
Grade 837
Enrollment over time
348’20
348’21
348’22
361’23
358’24
About steady.
Who goes here
White 83%Two or more races 8%Hispanic 6%Asian 2%Black 1%American Indian/Alaska Native <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Horizons K-8 School.
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.