Seneca Valley high school with 12
Washington High School of Sioux Falls, South Dakota has 39 state championships, they won 14 straight from 1952 to 1965
Ohio State has 5 solo championships and 2 shared championships that the school considers titles, so they have 7 total.
The Pine Bluff High School Zebras have 21 State Championships in Football.
Safford high school.
Penn State- 9 Championships
Colleges can compete for conference championships not state
None in football one in baseball
Ohio State
Massillon Tigers! (They've Won An Amazing 22!)
Play football and win championships like a boss
Frostburg State, McDaniel College, Salisbury State, and Johns Hopkins are the D3 football schools in Maryland.
According to Wikipedia there has been 5 state championships