There are 15 teams in the American League and 15 teams in the National League for a total of 30.
As of 2010 there are 30 Major League Baseball teams.
There are 30 Major League Baseball teams. American League - 15 National League - 15
There were 30 teams in Major League Baseball in 2005.
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As of 2010 there are 30 Major League Baseball teams.
In 2008, Major League Baseball (MLB) consisted of 30 teams.
The amount of teams that play in Major League Baseball is 30.
There are 30 Major League baseball teams, 16 in the National League, and 14 in the American League.
There are 14 teams in the American League of Major League Baseball.1414 teams
There are 15 teams in the American League and 15 teams in the National League for a total of 30.
There are only 2 countries that have Major League Baseball teams, the United States have 29 out of 30 of the Major League Baseball teams whereas Canada has only 1 Major League Baseball game.
At the start of the 2012 MLB Season there are 30 teams, 16 in the national league and 14 in the american league. Starting 2013, both leagues will have 15 teams each with the Houston Astros being moved to the American League West division as required by Bud Selig.