Based on standardized test scores the State of Minnesota has awarded the school a five-star rating, the highest level that can be achieved.

"[4] The school has also made adequate yearly progress in compliance with No Child Left Behind standards.

As of 2015 the school had a demographic of 91% Caucasian, 2% Black, 2% Asian, 2% Two or more races, 2% Hispanic or Latino, and 1% Native American.

The chart below depicts Mahtomedi academic achievement in comparison to the Minnesota and United States averages for the 2006–2007 school year.

About 90% of students continue on to college after graduation, and Mahtomedi High School has a dropout rate of 1%.