Mount Vernon School District 17-3

The three schools in Mount Vernon School District 17-3 serve students from prekindergarten through grade 12, with enrollments of 58 to 110 students. In 2025–26, the elementary and middle schools’ all-grades results were above state averages in both English language arts (ELA) and math, while the high school was above state rates in math and science but slightly below in ELA. The most important takeaway is that the district’s elementary and middle results are strong overall, with high-school ELA the clearest exception: 46% proficient, 2 points below the state.

Mount Vernon Elementary - 02 leads the two schools with comparable all-grades results, at 66% in both ELA and math; Mount Vernon Middle School - 03 has 63% in ELA and 65% in math. Both are well above state rates: the elementary school’s advantages are 17 points in ELA and 22 in math, and the middle school’s are 14 and 21 points. The middle school stands out especially in grade 8, where 75% were proficient in ELA and math, versus 52% and 43% statewide. Mount Vernon High School- 01 is the exception by subject, with ELA 2 points below the state but math 12 points and science 9 points above.

Results moved in different directions: elementary ELA rose 6 points and math 8 points from 2024–25 to 2025–26, while middle-school ELA and math each fell about 10 points, though both remained above state averages. SchoolDigger ranks the middle school at the 92nd percentile statewide, the elementary school at the 88th, and the high school at the 69th. In 2024–25, student-teacher ratios were 11.3 at the elementary school, 12.5 at the middle school, and 13.1 at the high school. Free/reduced lunch eligible shares that year were 35%, 40%, and 32%, respectively; these are context, not explanations for score differences. The high school’s assessment changed between years, so its scores should not be read as a year-to-year trend.