Summary:
Zip code 58718 includes two schools in Berthold, serving grades PK–6 and 7–12, with enrollments of 96 and 98; both are in Lewis And Clark 161. In 2025–2026, Berthold Elementary School reported math proficiency of 60–68%, above the state’s 54%, while Berthold High School reported 40–59%, a range that could fall below or above the state. The clearest shared concern is science: both schools reported 10–29% proficiency, compared with 39% statewide.
Berthold Elementary School stands out in the latest math results, at 6–14 points above the state; Berthold High School’s math range is 14 points below to 5 points above it. Reading results also span the state benchmark at both schools: Elementary is 2 points below to 6 points above the state’s 57%, while High is 17 points below to 2 points above. High has a separate strength in graduation: its 94% rate is 7 points above the state and 6 points above the district. Because the schools serve different grade spans, their all-grades results are not a like-for-like comparison.
Results changed unevenly over time. Elementary math rose from 44% in 2024–2025 to 60–68%, while its science result fell from 59% to 10–29%; the state’s science result was nearly unchanged, moving from 38% to 39%. High reading rose from 20% to 40–59%, but its latest range still does not establish whether it is above or below the state. SchoolDigger’s statewide ranking percentiles fell over the three reported years, from the 93rd to the 67th percentile for Elementary and from the 45th to the 32nd for High. In 2024–2025, student–teacher ratios were 9.5 at Elementary and 8.6 at High; both schools reported free/reduced lunch eligible shares for that year, 14.6% and 15.3%, respectively.
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