Colby Public Schools

Colby Public Schools has three schools serving prekindergarten through grade 12: Colby Elementary (PK–4), Colby Middle School (grades 5–8), and Colby Senior High (grades 9–12). SchoolDigger’s latest school rankings place them between the 20th and 46th percentiles; it ranks the district 201st of 268, at the 25th percentile and one star. The clearest difference in the supplied results is that Elementary leads in all-grades ELA and math, while Middle has a substantial ELA shortfall.

Elementary stands out at the top for both subjects: its 2025–26 proficiency was 47% in ELA, about 4 points above Senior High and 20 above Middle, and 43% in math, about 10 points above Senior High and 11 above Middle. Middle is the ELA low point at 26%; its 32% math result, however, was about 1 point above Senior High’s 31%. Among the two schools with reported science results, Middle led Senior High, 35% to 28%. Grade-level results add important exceptions: Elementary was 3 points above the state in fourth-grade ELA, and Senior High was 2 points above in tenth-grade ELA, while Middle’s eighth-grade ELA result was 23 points below its state comparison.

Recent changes differ by school and subject. Across the six school-subject results available in both years, the average rose from 36% to 37%, but the average gap from the state widened from 5 to 7 points. ELA’s average fell from 40% to 38%, while math rose from 33% to 35%. Elementary’s ELA increased by 6 points, and Middle’s math rose by 8; Senior High’s ELA fell by 8 points. SchoolDigger’s ranking histories also diverged: Elementary moved from the 28th to the 43rd percentile and Senior High from the 33rd to the 46th, while Middle dropped from the 52nd to the 20th. Context measures do not follow a simple pattern with results: Elementary had the highest student-teacher ratio (15.3) and free/reduced-lunch rate (39%), compared with 13.6 and 35% at Middle and 13.6 and 30% at Senior High. Chronic absenteeism rose across the schools from 6% at Elementary to 14% at Middle and 20% at Senior High. All-grades comparisons span different grade ranges, so grade-level comparisons offer a more direct school-to-state reference.