Information pertaining to early schools of Defiance County is lacking, but a study conducted by T. C. Holy in 1937 revealed that a school was organized and conducted by William Seamans in Defiance the winter of 1824 and 1825.

It received its name from Fort Defiance, built in 1794, by General Anthony Wayne at the junction of the Maumee and Auglaize Rivers.

The first building erected for school purposes was located between the old canal and the Maumee River.

The Defiance County Board of Education met on May 13, 1938, and approved the reorganization plan.

Meincke, Mattack, Helberg, Behrens, and Domersville were closed in the North Richland-Adams District.

In June 1957, the districts Tiffin, Noble, and North Richland-Adams were consolidated into the Northeastern Local, and became effective in July 1957.

In January 2002 students moved into the new building located North of the Tinora High School.

The Tiffin building was bulldozed and North Richland-Adams was sold to the Northwest Ohio Educational Service Center in 2002.

The original junior/high school was demolished in 2020 and replaced with the new combined fifth through twelfth grade building.

Baseball, Bowling, Boys Basketball, Cheerleading, Cross Country, Girls Basketball, Golf, Gymnastics, Football, Softball, Swimming/Diving, Track & Field, Volleyball, Wrestlerettes, Wrestling Sam Hornish attended while in Elementary and Jr. High [citation needed] Mrs. Universe 2021 Tori Hope Petersen attended while in High School [citation needed] Team State Championships 2012 4x100 Meter Dash State Champions Dylan Hall, Kipp McCann, Kurt Kahle, and Chris Strup 2013 4x100 Meter Dash State Champions Kenzie Hall, Ashton Otte, Chelsey Seifert, and Tori Abdul 2012 State Track Champion DIII 100 Meter Dash-Chris Strup 2012 State Track Champion DIII 200 Meter Dash-Chris Strup 2011 State Track Champion DIII 100 Meter Dash-Chris Strup 2011 State Track Champion DIII 200 Meter Dash-Chris Strup 2005 State Wrestling Champion DIII 125 lbs Matt Bloniarz 2004 State Track Champion DIII Long Jump—Kevin McCann 2003 State Track Champion DIII Long Jump—Kevin McCann 2001 State Track Champion DIII 1600 Meter Run—Nick Smith 2001 State Track Champion DIII 3200 Meter Run—Nick Smith 1985 State Wrestling Champion DIII Heavyweight Class—Michael Backhaus