Summary:
ZIP code 57543 has six schools serving elementary through high school—four elementary schools, one middle school and one high school—with 283 students total. Reported results vary sharply, and all-grades figures cover different grade spans, so comparisons within the same grade are especially useful. Among the four schools with disclosed all-grades results, math ranges from 17% at Interior Elementary - 09 to 78% at Kadoka Middle School - 03—a 62-point spread and the clearest sign that reported achievement differs substantially across the area.
Kadoka Middle School - 03 stands out in grades 6–8: every reported grade-and-subject result was above the state, by 14–42 points in ELA, 27–44 points in math, and 20 points in eighth-grade science. Kadoka Elementary - 02 also exceeded state results in its reported grades 3–5: by 4–11 points in ELA, 1–24 points in math, and 21 points in fifth-grade science. At the low end of disclosed all-grades results, Interior Elementary - 09 had 25% in ELA and 17% in math, 24 and 27 points below state figures. Longvalley Elementary - 10 presents a mixed picture: 43% in ELA, below the state, but 57% in math, above it.
Math improved from 2024–2025 at all four schools with results in both years: by 13 points at Kadoka Middle School - 03, 4 at Kadoka Elementary - 02, 29 at Longvalley Elementary - 10 and 8 at Interior Elementary - 09. ELA rose at the middle school and Interior, stayed level at Longvalley, and fell 4 points at Kadoka Elementary. SchoolDigger lists Kadoka Area High School - 01 at the 95th percentile in 2024–2025 and the 5th percentile in 2025–2026; its current ACT ELA and science results were 33% and 20%, below state figures of 48% and 45%. For context, 2024–2025 student-teacher ratios ranged from 4.4 at Interior to 18.2 at Kadoka Middle. The reported measure was free/reduced lunch eligible, 2024–2025: 14% at Longvalley, 49% at Kadoka Middle and 80% at Interior; these are contextual figures, not explanations for school results.
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