American League East

Lineup for 1969-1971

 * Baltimore Orioles
 * Boston Red Sox
 * Cleveland Indians
 * Detroit Tigers
 * New York Yankees
 * Washington Senators

Changes from 1968

 * Creation of division due to 1969 expansion

Lineup for 1972-1976

 * Baltimore Orioles
 * Boston Red Sox
 * Cleveland Indians
 * Detroit Tigers
 * Milwaukee Brewers
 * New York Yankees

Changes from 1971

 * The Washington Senators became the Texas Rangers and moved to the AL West
 * The Milwaukee Brewers moved in from the AL West

Lineup for 1977-1993

 * Baltimore Orioles
 * Boston Red Sox
 * Cleveland Indians
 * Detroit Tigers
 * Milwaukee Brewers
 * New York Yankees
 * Toronto Blue Jays

Changes from 1976

 * The Toronto Blue Jays were added in the 1977 expansion

Lineup for 1994-1997

 * Baltimore Orioles
 * Boston Red Sox
 * Detroit Tigers
 * New York Yankees
 * Toronto Blue Jays

Changes from 1993

 * The Cleveland Indians and Milwaukee Brewers moved into the newly created AL Central division due to the 1994 MLB realignment

Current Lineup

 * Baltimore Orioles
 * Boston Red Sox
 * New York Yankees
 * Tampa Bay Devil Rays
 * Toronto Blue Jays

Changes from 1997

 * The Tampa Bay Devil Rays were added in the 1998 expansion
 * The Detroit Tigers moved into the AL Central