How many states have NFL teams?

California, easy.

Baseball:

1. Los Angeles Angels of Anaheim
2. Los Angeles Dodgers
3. San Diego Padres
4. Oakland A's
5. San Francisco Giants

Football:

1. Oakland Raiders
2. San Francisco 49ers
3. San Diego Chargers

Basketball:

1. Los Angeles Lakers
2. Los Angeles Clippers
3. Sacramento Kings
4. Golden State Warriors
5. Los Angeles Sparks (women's)
6. Sacramento Monarchs (women's)

Hockey:

1. Anaheim Ducks
2. Los Angeles Kings
3. San Jose Sharks

Soccer:

1. San Jose Earthquakes
2. Los Angeles Galaxy
3. Chivas USA

New York would be the next closet, even if you include the NY teams that don't actually play in NY.