Summary:
Zip code 82214 has one listed high school, Guernsey-Sunrise High School, serving grades 9–12 with 59 students. Its latest results show a mixed picture: 10th-grade math was above Wyoming’s rate, but several other grade-and-subject results were well below it. The most important concern is 9th-grade ELA, where 21.4% were proficient, 34.2 percentage points below the state.
Within the school’s results, 10th-grade math stands out most positively: 50.0% were proficient in 2025–26, 5.0 points above Wyoming’s 45.0%. The lowest results were in 9th-grade ELA and math, both at 21.4%; those rates were 34.2 and 25.1 points below the state, respectively. 10th-grade science was also a weak result at 28.6%, compared with 53.3% statewide. 10th-grade ELA was closer to the state, at 50.0% versus 54.7%. Since this is the only listed school, there is no school-to-school comparison or local top-versus-bottom ranking.
Results improved in 10th-grade ELA and math but weakened in 9th grade and science: each 10th-grade result rose 16.7 points from 2024–25, while 9th-grade ELA and math each fell 1.7 points and 10th-grade science fell 15.8 points. Across the five reported results, the average gap with Wyoming was nearly unchanged, at about 16.7 points below the state in both years. SchoolDigger’s statewide percentile for the school rose from 14 in 2023–24 to 21 in 2025–26; its district, Platte County School District #2, is listed 40th of 44. The 2024–25 graduation rate was 84.2%, equal to the district and 1.1 points above Wyoming; the student–teacher ratio was 6.9, and 59.3% of students were eligible for free or reduced-price lunch. These figures provide context, not an explanation for achievement results.
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