Current members

• Boardman
  Boardman High School (Mahoning County, Ohio)
  Boardman High School is a public high school in Boardman, Ohio. It is the only high school in the Boardman Local School District. The first high school, located on Market Street, is now Boardman Center Middle School. In 1969, the new high school was built on Glenwood Ave...
  
   Spartans (2003–Present)
• Canton McKinley
  Canton McKinley High School
  Canton McKinley Senior High School is a public high school in Canton, Stark County, Ohio, U.S. It is one of the largest and oldest high schools in Ohio.-Athletics:...
  
   Bulldogs (2003–Present)
• GlenOak
  GlenOak High School
  GlenOak High School is located in Plain Township, Stark County, Ohio. The school derives its name from the combination of the former Glenwood and Oakwood high schools, which were merged by the district in the fall of 1975...
  
   Golden Eagles (1975–Present)
• Lake
  Lake High School (Uniontown, Ohio)
  Lake High School is a public high school in Lake Township, Ohio. It is the only high school in the Lake Local Schools district. Lake's sports teams are nicknamed the Blue Streaks and are a part of the Federal League Conference along with North Canton Hoover High School, Jackson High School,...
  
   Blue Streaks (1987–Present)
• Jackson Polar Bears (1964–Present)
• North Canton Hoover
  Hoover High School (North Canton, Ohio)
  Hoover High School is a public high school in North Canton, Ohio.-Name:The school's original name was simply North Canton High School which students affectionately referred to as No. Ca. Hi...
  
   Vikings (1968–Present)
• Perry Panthers (1964–Present)

Former members

• Austintown-Fitch
  Austintown-Fitch High School (Youngstown, Ohio)
  Austintown Fitch High School is a public high school in Austintown, Ohio, near Youngstown. It is the only high school in the Austintown Local School District. The school nickname is the Falcons, with mascots being Freddie and Frieda Falcon...
  
   Falcons (2003–2011) *
• Alliance Aviators (1983–2003)
• Fairless
  Fairless High School
  Fairless High School is a public high school in Brewster, Ohio. It is the only high school in the Fairless Local School District. The high school combines students from the villages of Brewster, Beach City, Navarre, Wilmot and some surrounding townships. It serves grades 9 through 12 and its...
  
   Falcons (1964–1975)
• Glenwood Eagles (1964–1975)
• Louisville
  Louisville High School (Ohio)
  Louisville High School is a public high school located in Louisville, Ohio, USA. It is the only high school in the Louisville City School District and encompasses the entirety of the city of Louisville as well as the majority of the surrounding Nimishillen Township.-Academics:Louisville was a 2008...
  
   Leopards (1968–1990)
• Marlington
  Marlington High School (Alliance, Ohio)
  Marlington High School is a public high school near Alliance, Ohio. It is the only high school in the Marlington Local Schools district. The name is a portmanteau of Marlboro and Lexington or Washington townships, and the district actually covers those mostly rural areas and not Alliance itself...
  
   Dukes (1964–1985)
• New Philadelphia
  New Philadelphia High School
  New Philadelphia High School is a public high school in New Philadelphia, Ohio. It is the only high school in the New Philadelphia City Schools district. Its mascot is the Quakers.-History:...
  
   Quakers (1988–1997)
• Oakwood Golden Raiders (1968–1975)
• Sandy Valley
  Sandy Valley High School (Magnolia, Ohio)
  Sandy Valley High School is a public high school in Magnolia, Ohio. It is the only high school in the Sandy Valley Local Schools district. Its mascot is a cardinal and its colors are red and gray...
  
   Cardinals (1964–1968)
• Canton South
  Canton South High School
  Canton South High School is a public high school in Canton Township, Stark County, Ohio, United States. The school, typically enrolling around 800 students in the 9th, 10th, 11th, & 12th grades, is the only high school in the Canton Local School District. It is a member school of the former Stark...
  
   Wildcats (1964–1990)
• Canton Timken Trojans (1988–1995)
• Wooster
  Wooster High School (Ohio)
  Wooster High School is a public high school in Wooster, Ohio. It is the only high school in the Wooster City School District. The mascot/nickname of the school is the Generals, named after American Revolutionary War General David Wooster....
  
   Generals (1988–2003)

• Austintown-Fitch
  Austintown-Fitch High School (Youngstown, Ohio)
  Austintown Fitch High School is a public high school in Austintown, Ohio, near Youngstown. It is the only high school in the Austintown Local School District. The school nickname is the Falcons, with mascots being Freddie and Frieda Falcon...
  
   will exit the conference after the 2010-2011 school year.

1960s

• The Federal League begins league play in 1964 with Canton South, Fairless, Glenwood, Jackson, Marlington, Perry, and Sandy Valley as charter members.
• In 1968, Sandy Valley leaves the league and is replaced by Louisville, North Canton Hoover, and Oakwood.

1970s

• In 1975, Fairless leaves the league while Glenwood and Oakwood consolidate to form GlenOak.

1980s

• In 1983, Alliance joins the league.
• In 1985, Marlington leaves the league.
• In 1987, Lake joins the league.
• In 1988, New Philadelphia, Canton Timken, and Wooster join the league, prompting the league to split into an American Division and a National Division:

  align=bottom style="text-align:left;"|

  Federal League Divisions 1988/89-1989/90
  American Division	National Division
  Alliance	Canton South
  GlenOak	Lake
  Hoover	Louisville
  Jackson	New Philadelphia
  Perry	Canton Timken
  	Wooster

1990s

• In 1990, Canton South and Louisville leave for the Northeastern Buckeye Conference
  Northeastern Buckeye Conference (OHSAA)
  The Northeastern Buckeye Conference , is an OHSAA high school athletic conference that comprises eight high schools in Northeast Ohio. The current member schools of the conference are:*Alliance Aviators...
  
  , which causes the divisional format to be dropped.
• In 1995, Timken leaves the league.
• In 1997, New Philadelphia leaves for the East Central Ohio League.

2000s

• In 2003, Alliance and Wooster leave for the NBC
  Northeastern Buckeye Conference (OHSAA)
  The Northeastern Buckeye Conference , is an OHSAA high school athletic conference that comprises eight high schools in Northeast Ohio. The current member schools of the conference are:*Alliance Aviators...
  
   and the newly-formed Ohio Cardinal Conference, respectively.
• At the same time, Austintown-Fitch, Boardman, and Canton McKinley join in all sports except for football, which they would fully join in the following school year.

2010s

• In 2010, Austintown-Fitch decided to leave the Federal League for the All-American Conference in 2011 for all sports except football. They are hoping to remain a football-only member of the Federal League, otherwise they will play as an independent. They are replacing Salem
  Salem High School (Ohio)
  Salem High School is a public high school in Salem, Ohio, USA. It is the only high school in the Salem City School district. Since 2006 the building has also housed Salem Junior High School, for grades 7 and 8, though it is administered separately from the high school. As of the 2009–2010...
  
  , who is leaving for the Northeastern Buckeye Conference
  Northeastern Buckeye Conference (OHSAA)
  The Northeastern Buckeye Conference , is an OHSAA high school athletic conference that comprises eight high schools in Northeast Ohio. The current member schools of the conference are:*Alliance Aviators...
  
  .

League champions