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Declo Senior High School

Public Grades 9-12
75th
SchoolDigger Rank ?
of 112 Idaho High Schools
Better than 33% of Idaho high schools
Summary

Declo Senior High School is a public high school located in Declo, Idaho, serving grades 9-12 with a total enrollment of 311 students. The school is part of the Cassia County Joint District, which is ranked 57 out of 96 districts in Idaho and has a 2-star rating from SchoolDigger.

Declo Senior High School has maintained a relatively high four-year graduation rate, ranging from 81% to 97% over the past few years, which is generally higher than the surrounding schools in the Cassia County Joint District. The school also outperforms the district and state averages in English Language Arts (ELA) proficiency, with 61.4% of students proficient or better in 2024-2025, compared to 46.8% for the district and 60% for the state. However, the school lags behind in Math and Science proficiency, with only 30.7% and 29.5% of students proficient or better, respectively, in 2024-2025. Declo Senior High School has experienced fluctuating chronic absenteeism rates, ranging from 4.9% to 17.1% over the past few years, which is an area of concern as it is generally higher than the surrounding schools.

Declo Senior High School generally performs better than the nearby Raft River Junior/Senior High School and Cassia Junior/Senior High School in terms of test scores and graduation rates, but lags behind the larger Burley Senior High School and Minico Senior High School in some metrics. The school's performance has been variable over time, with its statewide ranking ranging from 19th out of 52 schools in 2017-2018 to 90th out of 106 schools in 2022-2023.

326
Students ?
19.4
Student/teacher ratio ?
$8,583
Per pupil spending ?
35%
Free/discounted lunch ?
 505 East Main Street
       Declo, ID  83323-5047

(208) 654-2030

District: Cassia County Joint District


Feeder schools for Declo Senior High School:

Elementary:    Albion Elementary School
    Declo Elementary School
    Dworshak Elementary School
    Mountain View Elementary
    More...
Middle:    Burley Junior High School
    Declo Junior High School
Racial breakdown:

White:
78.5%
Hispanic:
20.6%
African American:
0.3%
more
 See top rated Idaho high schools

 Compare Declo Senior High School to nearby high schools!
At a glance
Ranking trend: Declining — 60th percentile in 2012 → 33rd in 2025
Worth a look
!Test scores below the Idaho average (41% vs 47% meeting standards)
!Ranking has slipped — down 27 percentile points since 2012
!Science scores 13 pts below the Idaho average
Students meeting standards (2024-2025) ?
This school41%
District avg40%
Idaho avg47%
75th of 112
Idaho public high schools ?
Bottom 33%▲ up 9 pts since 2015
From bottom 24% (2015) to bottom 33% (2025)
See the entire ranking list of Idaho High Schools →
SchoolDigger rating ?
2nd of 3High Schools in the Cassia County Joint District
57th of 96Cassia County Joint District among Idaho 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 rankIdaho percentileRating
202536.675 of 11233.0%★★☆☆☆
202483.121 of 15986.8%★★★★☆
202323.190 of 10615.1%★☆☆☆☆
202233.476 of 11030.9%★★☆☆☆
201860.319 of 5263.5%★★★☆☆
201755.439 of 10161.4%★★★☆☆
201661.926 of 7665.8%★★★☆☆
201529.656 of 7424.3%★☆☆☆☆
201368.738 of 16076.3%★★★★☆
201261.664 of 16260.5%★★★☆☆
201169.141 of 16575.2%★★★★☆
201062.162 of 16963.3%★★★☆☆
200943.066 of 12848.4%★★☆☆☆
200873.527 of 15182.1%★★★★☆
By subject vs Idaho (2024-2025) ?
English Language Arts61%+8 vs state
Math31%-12 vs state
Science30%-13 vs state

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Frequently Asked Questions about Declo Senior High School

Students at Declo Senior High School are 79% White, 21% Hispanic.

Declo Senior High School ranks 75th of 112 Idaho high schools. SchoolDigger rates this school 2 stars out of 5.

In the 2024-25 school year, 326 students attended Declo Senior High School.


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