Summary:
ZIP code 98537 has two schools serving students from prekindergarten through grade 12: Cosmopolis Elementary School, a K–6 school with 175 students, and North River School, a small alternative school serving grades PK–12 with 54 students. Together, they enroll 229 students in the Cosmopolis School District and North River School District.
The schools serve different purposes, so comparisons should be viewed as general indicators rather than a direct quality ranking. North River School had stronger 2025–2026 all-grades results in every reported subject: 51.61% proficiency in English Language Arts, 34.48% in math, and 53.85% in science. Its science result exceeded the state rate, while its ELA result was close to the state average. The school also had a very small 8-to-1 student-teacher ratio and reported spending of $42,928 per student. Its math performance improved by more than 10 percentage points from the prior year, although it remained below the state average. Grade-level results are suppressed, so more detailed comparisons are unavailable.
Cosmopolis Elementary School had 2025–2026 proficiency rates of 41.38% in ELA, 26.44% in math, and 42.86% in science, all below statewide results. ELA improved substantially from the previous year, but math and science declined. Sixth grade was a notable strength: ELA exceeded the state rate, and math was approximately equal to it. Mathematics—especially grades 3–5—appears to be the most important academic challenge. The school’s statewide ranking rose from the 24th to the 30th percentile, but it remained below the state midpoint. With 16.5 students per teacher and $21,884 in spending per student, it operates at a larger scale than North River.
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