Interior Elementary - 09
School pathway
Test scores
SD Smarter Balanced 2024-25 . % ProficientWhat this means: On the SD Smarter Balanced, South Dakota's statewide test, about 18 of every 100 students at this school read and write at grade level and about 9 of 100 do math at grade level. Across all South Dakota schools, those numbers are about 50 and 47. Reading and writing scores are down about 64 points since 2022, while math scores are down about 64 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 25% of students here test proficient in math and reading, compared with the roughly 30% typical for South Dakota schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among South Dakota's top nor bottom 10%.
7-year change
SY 2017-18 vs SY 2024-25About Interior Elementary - 09
As a rural-scale primary school in Interior, South Dakota, Interior Elementary - 09 serves 15 students from grades K through 8, operated by Kadoka Area School District 35-2. That puts it 93% leaner than the typical public school in South Dakota, which averages around 204 students.
Across the 6 schools in Kadoka Area School District 35-2 (283 students total), Interior Elementary - 09 accounts for its share of the district's footprint.
Looking at the student body, Interior Elementary - 09 logs that nearly all students (87%) are Native American. Beyond that, the school lists 7% White, 7% Hispanic.
Looking at school resources, On paper, Interior Elementary - 09 has 3 full-time-equivalent teachers, translating to a class-load average of around 4.5:1. Statewide, the average ratio sits near 15.4:1, putting Interior Elementary - 09 tighter than the state norm the norm. Around 80% of the student body qualifies for free or reduced-price meals, a commonly cited indicator of low-income enrollment. That share is higher than Jackson County's rate of about 72%.
Adjusting for the school's free-and-reduced-lunch share, Interior Elementary - 09 tracks the demographic baseline. The model predicts 30.2% given the school's FRL share; actual proficiency is 25.0%.
In the surrounding community, ACS estimates for Jackson County put median household earnings sit near $35,417, 12% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 40%. Across Jackson County's 6 public schools (combined enrollment of about 547 students), Interior Elementary - 09 is one campus in the mix.
The closest other public school is Crazy Horse School, roughly 19.0 miles away. Ranking that nearby cluster on reported proficiency puts Interior Elementary - 09 at 5th of 5; the average score across the group is 59.3%.
Geographically, the school is in a countryside area.
Five-year trend. Looking back 7 years, enrollment at Interior Elementary - 09 has contracted 64%, going from 42 students in 2018 to 15 in 2025. Over the same period, the White share declined from 31% to 7%. Class-load math has pulled in: from 7.4:1 in 2018 to 4.5:1 in 2025.
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Jackson County at a glance
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