Summary:
Pasco School District has three high schools in the Pasco area, serving grades 6–12 across the district: Chiawana Senior High School (grades 8–12), Pasco Senior High School (grades 9–12), and New Horizons High School (grades 6–12). Together, they enroll about 6,061 students, but they differ considerably in size and reported outcomes.
Chiawana Senior High School is the clear overall leader. It has the highest graduation rate, at 92.8%, the lowest dropout rate, at 3.7%, and the strongest 2025–26 ranking of the three schools. It also led in English, math, and science proficiency and improved in all three subjects from the previous year, particularly in English. Pasco Senior High School has a graduation rate near the district average at 80.8%, but its ranking is much lower, and its math and science results are especially weak. Assessment scores declined in all three subjects, while its dropout rate of 11.8% was above district and state rates.
New Horizons High School has the most challenging reported profile, with a 30.0% graduation rate, a 24.4% dropout rate, and the lowest ranking. Its English and science proficiency rates were also well below district averages, although its math result was suppressed and cannot be treated as zero. Because it enrolls only about 344 students, year-to-year results may be more sensitive to individual student cohorts and program differences. Across the district, math is the most consistent academic concern, while graduation support, dropout prevention, attendance, and credit completion appear especially important areas for families to investigate.
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