TEXAS
New York, with I believe 45 between baseball basketball football and hockey
The Ohio State University has 7 national championships. When they beat the University of Miami in 2002 that gave them their seventh championship since 1952.
116 national championships since 1895 in football. However most teams don't count their national championship pre ww2!
Jefferson City High School has won 10 State Championships. Nine of those under legendary Coach Pete Adkins. Adkins has the greatest winning percentage in high school football coaching history (87%). His 41 year coaching record stands at 405-60-4.
Texas
Texas
TEXAS
football, basketball and baseball.
for football Texas does
Washington High School of Sioux Falls, South Dakota has 39 state championships, they won 14 straight from 1952 to 1965
Texas
Safford high school.
Alabama
The Oklahoma Sooners have won eight Big 12 Conference championships, in 2000,2002,2004,2006,2007,2008,2010, and 2012 (with Kansas State.)
TEXAS
Texas