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Declo Senior High School
PublicHighGrades 9–12
505 East Main Street, Declo, ID 83323 · (208) 654-2030 · Part of Cassia County Joint School District 151
Students
326
Students per teacher
19:1
Free or reduced lunch
35%
Setting
Rural
Grades
9–12
What stands out about Declo Senior High School
- Math proficiency 18 pts below the state
- Enrollment up 10.5% since 2020
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency22%
State average 39.6%
Reading / language arts57%
State average 54%
Location
Directions ↗
505 East Main Street, Declo
Students
Enrollment by grade
Grade 992
Grade 1074
Grade 1190
Grade 1270
Enrollment over time
295’20
283’21
298’22
311’23
326’24
Up 10.5% since 2020.
Who goes here
White 79%Hispanic 21%Black <1%Asian <1%Two or more races <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 Declo Senior High School.
Other schools in Cassia County Joint School District 151
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.