Members at the time of dissolution

• Eastwood
  Eastwood High School (Pemberville, Ohio)
  Eastwood High School is the only high school in the Eastwood Local School District in eastern Wood County, Ohio. The high school holds grades nine through twelve. Eastwood High's athletic league is the Northern Buckeye Conference...
  
   Eagles (1972-2011)
• Elmwood
  Elmwood High School (Bloomdale, Ohio)
  Elmwood High School is a public high school in Bloomdale. It is the only high school in the Elmwood Local School District, which primarily serves Bloom, Montgomery, Perry, and Portage townships in Wood County, but also serves parts of Center and Freedom townships...
  
   Royals (1972-2011)
• Genoa
  Genoa Area High School
  Genoa Area High School is a public high school in Genoa, Ohio. It is the only high school in the Genoa Area Local School District. Their nickname is the Comets. Other towns included in the district are Curtice, Clay Center, Martin, and Williston....
  
   Comets (1972-2011)
• Gibsonburg
  Gibsonburg High School
  Gibsonburg High School is a public high school in Gibsonburg, Ohio. It is the only high school in the Gibsonburg Exempted Village School District. Their nickname is the Golden Bears...
  
   Golden Bears (1972-2011)
• Lake
  Lake High School (Millbury, Ohio)
  Lake High School is a public high school near Millbury, Ohio in Lake Township. It is the only high school in the Lake Local School District, serving about 500 students in grades 9 to 12.- Athletics :...
  
   Flyers (1996-2011)
• Otsego
  Otsego High School
  Otsego High School is a high school in the village of Tontogany, Ohio, United States. Otsego High School is a typical conservative rural school, however the Otsego Local School District is the largest geographical school district in the state of Ohio...
  
   Knights (1972-2011)
• Woodmore
  Woodmore High School
  Woodmore High School is a public high school in Elmore, Ohio. It is the only high school in the Woodmore Local Schools district, which also serves Woodville, Ohio. Their nickname is the Wildcats...
  
   Wildcats (1972-2011)

Former members

• Lakota
  Lakota High School (Kansas, Ohio)
  Lakota High School is a public high school in Scott Township, near Kansas, Ohio. It is the only high school in the Lakota Local Schools district. Their nickname is the Raiders. Lakota opened the doors on their new K-12 building to students on August 29, 2011...
  
   Raiders (1972–2009)
• Northwood
  Northwood High School (Ohio)
  Northwood High School is a public high school in Northwood, Ohio. It is the only high school in the Northwood Local Schools district. Their nickname is the Rangers, with the school colors of blue and yellow. They are currently members of the Toledo Area Athletic Conference.-External links:*...
  
   Rangers (1986–2000)
• Oak Harbor
  Oak Harbor High School (Ohio)
  -About:Oak Harbor High School is a public high school located in Oak Harbor, Ohio on State Route 163. It is the only high school in the Benton-Carroll-Salem Schools district. Their mascot is the Rockets, and their school colors are red and green. Presently, Keith Thorbahn serves as the principal...
  
   Rockets (1972–1986)

1970s

• For the 1972-73 school year, Eastwood, Elmwood, and Genoa leave the Northern Lakes League
  Northern Lakes League
  The Northern Lakes League , is an OHSAA high school athletic conference that was formed in 1956 and comprises eight high schools in Northwest Ohio.-Current members:-Former members:-1950s:...
  
   to form the SLL with Gibsonburg, Lakota, and Oak Harbor from the Sandusky Bay Conference
  Sandusky Bay Conference
  The Sandusky Bay Conference is a high school athletic conference with eight members from the Sandusky Bay area of north central Ohio. It is affiliated with the Ohio High School Athletic Association.-Members:-Athletic competition:...
  
  , and Otsego and Woodmore from the Lakeshore Conference.

1980s

• At the end of the 1985-86 school year, Oak Harbor leaves to rejoin the Sandusky Bay Conference, leaving the SLL with seven members.
• Northwood joined the league as the eighth member for the 1986-87 school year after the Lakeshore Conference had folded in the winter of 1985.

1990s

• Lake becomes the ninth league member in 1996, leaving the NLL in similar fashion to its SLL predecessors.
• In 1999, the SLL extended an invitation to Rossford to be its tenth member. Rossford declined, which caused the SLL and TAAC to consider realigning their members with other area schools based on enrollment.

2000s

• In 2000, Northwood leaves the league for the TAAC after Rossford declines to join the SLL as its tenth member.
• In 2008, realignment issues are stirred up again when Lakota decides to leave for the Midland Athletic League
  Midland Athletic League
  The Midland Athletic League is an OHSAA athletic league located in northwest Ohio that was formed in 1985. Mark King is the commissioner. The following schools are currently members of the league, with the school name providing a link to the town the school is in or near:-Members:Bettsville, New...
  
   in 2009, opening the door for another potential member. Rossford
  Rossford High School
  Rossford High School is a public high school in Rossford, Ohio. It is the only high school in the Rossford Exempted Village Schools district. Aside from the city, the district also serves parts of Perrysburg and Lake townships within Wood County....
  
   was considered as the prime choice for replacement, but a 4-3 vote amongst member schools (4 in favor, 3 against) turned them down. 6 schools would have had to approve Rossford's admission due to the 75% vote clause.
• In 2009, both Rossford and Fostoria High Schools were turned down as potential members with the current members not gathering the necessary 6-1 vote. However, the 7 SLL school principals later considered expanding the league to 12 members by the 2011-12 school year, with 2 divisions (Big Schools and Small Schools). The 5 other schools were not specifically named, but it was noted that both Rossford and Fostoria fit the profile of the larger school division, which would have included Eastwood, Genoa, Lake, and Otsego. The smaller division would have consisted of Elmwood, Gibsonburg, Woodmore, and 3 other area schools close to their enrollment sizes. Geography and size pointed at Northwood, Ottawa Hills, Cardinal Stritch, and Toledo Christian. Genoa and Eastwood's superintendents decided that the 12 team league would not work because they did not want Fostoria in their league.
• In May 2009, Eastwood, Genoa, Lake, Otsego, and Woodmore agreed to withdraw from the SLL and form a new league with Rossford. This was an attempt to circumvent the bylaws of the league after Rossford was voted down by a 5-2 vote (Rossford needed 75% (6 out of 7) of the vote to be added into the SLL). It was decided that league play for the new Northern Buckeye Conference would begin in the fall of 2011. This move left Elmwood and Gibsonburg as the lone members of the SLL for that time.
• Elmwood was invited to join the NBC on August 12 along with Fostoria.
• On September 9, 2009, Elmwood officially joined the NBC after being turned away from the MAL the day before. Gibsonburg was also denied MAL membership, but they applied to join the TAAC on September 16.
• Gibsonburg was invited to join the TAAC on October 7, 2009. They became a voting member of the league on January 1, 2010 and joined the TAAC when the SLL dissolved in 2011.

2010s

• Athletic competition for the league ended with the conclusion of the spring sports seasons in 2011.

State Champions

• Woodmore
  Woodmore High School
  Woodmore High School is a public high school in Elmore, Ohio. It is the only high school in the Woodmore Local Schools district, which also serves Woodville, Ohio. Their nickname is the Wildcats...
  
  - Golf (Class A) - 1979, 1981
• Gibsonburg
  Gibsonburg High School
  Gibsonburg High School is a public high school in Gibsonburg, Ohio. It is the only high school in the Gibsonburg Exempted Village School District. Their nickname is the Golden Bears...
  
   - Baseball (Div. IV) - 2005
• Eastwood
  Eastwood High School (Pemberville, Ohio)
  Eastwood High School is the only high school in the Eastwood Local School District in eastern Wood County, Ohio. The high school holds grades nine through twelve. Eastwood High's athletic league is the Northern Buckeye Conference...
  
  - Track & Field (Div. II) - 2009, 2010

• Otsego
  Otsego High School
  Otsego High School is a high school in the village of Tontogany, Ohio, United States. Otsego High School is a typical conservative rural school, however the Otsego Local School District is the largest geographical school district in the state of Ohio...
  
   - Volleyball (Div. III) - 1992
• Eastwood
  Eastwood High School (Pemberville, Ohio)
  Eastwood High School is the only high school in the Eastwood Local School District in eastern Wood County, Ohio. The high school holds grades nine through twelve. Eastwood High's athletic league is the Northern Buckeye Conference...
  
   - Volleyball (Div. II) - 1993
• Woodmore
  Woodmore High School
  Woodmore High School is a public high school in Elmore, Ohio. It is the only high school in the Woodmore Local Schools district, which also serves Woodville, Ohio. Their nickname is the Wildcats...
  
   - Cross Country (Div. II) - 1992, 1993
• Woodmore
  Woodmore High School
  Woodmore High School is a public high school in Elmore, Ohio. It is the only high school in the Woodmore Local Schools district, which also serves Woodville, Ohio. Their nickname is the Wildcats...
  
   - Cross Country (Div. III) - 1994
• Woodmore
  Woodmore High School
  Woodmore High School is a public high school in Elmore, Ohio. It is the only high school in the Woodmore Local Schools district, which also serves Woodville, Ohio. Their nickname is the Wildcats...
  
   - Track & Field (Div. III) - 1993
• Gibsonburg
  Gibsonburg High School
  Gibsonburg High School is a public high school in Gibsonburg, Ohio. It is the only high school in the Gibsonburg Exempted Village School District. Their nickname is the Golden Bears...
  
  - Softball (Div. IV) - 2001, 2002, 2003

Football champions

External links

• List of SLL Football Champions
• Oak Harbor leaving SLL at the end of the '85-'86 school year
• Latest Meeting Appears Fruitful on Formation of New Prep League, Toledo Blade, 11 Dec 1970
• SLL plans 12-team, 2-division alignment (March 25, 2009)
• Possible Small Division members (from the Courier in Findlay, Ohio).
• Rossford BOE Vote on May 18, 2009
• 5 from SLL join Rossford for new league
• Elmwood considering a move to the MAL
• Elmwood to join Northern Buckeye Conference
• Gibsonburg applies to become TAAC member
• Gibsonburg becomes eighth member of TAAC