Summary:
ZIP code 57366 has five schools serving grades PK–12: Parkston Elementary (PK–5), Parkston Middle (6–8), Parkston High (9–12), Old Elm Spring Colony Elementary (PK–8), and Our Home (5–12). Three schools report 2025–26 Smarter Balanced results, while Parkston High reports ACT results and Our Home has no test scores in the data. The clearest overall contrast is that both Parkston elementary and middle schools are above state rates in their reported all-grades results, while Old Elm is below.
Parkston Elementary and Parkston Middle lead the reported all-grades results: Elementary has 59% proficiency in ELA and 64% in math, while Middle has 58% and 64%. Those rates are about 9–10 points above the state in ELA and 20–21 points above in math. Old Elm is lowest, at 35% in both subjects—14 points below the state in ELA and 9 points below in math. At the high school, Parkston High is above state ACT proficiency rates in all three subjects: 56% in ELA, 47% in math, and 64% in science. Its graduation rate is 95%, compared with 88% statewide.
Recent results improved on average across the three schools with two years of all-grades scores, but not in every subject at every school: the group’s ELA average rose 3 points and math rose 9 points. Parkston Middle gained 10 points in ELA and 17 in math; Old Elm fell 6 points in ELA but rose 12 in math, while Parkston Elementary rose 5 points in ELA and fell 2 in math. SchoolDigger ranks Parkston Middle at the 88th percentile, Parkston High at the 87th, and Parkston Elementary at the 73rd for 2025–26. The three Parkston schools have student–teacher ratios of 13.9, 14.2, and 13.9? [sic]
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