Ottawa Normal School was created in 1874.
Ridgemont High School - Ottawa - was created in 1958.
Ottawa Technical Secondary School was created in 1973.
Hawthorne Public School - Ottawa - was created in 1899.
Woodroffe High School - Ottawa - was created in 1960.
Ottawa Senior High School was created in 1917.
Ottawa Township High School was created in 1897.
Immaculata High School - Ottawa - was created in 1928.
St. Paul High School - Ottawa - was created in 1978.
Ottawa Hills Local School District was created in 1925-09.
St. Mark Catholic High School - Ottawa - was created in 1980.
Brookfield High School - Ottawa - was created in 1962.
Lincoln Normal School was created in 1867.