There are currently 15 official national teams.
There are 13 teams playing in the MLS (Major League Soccer) and 9 teams playing in the MISL (Major Indoor Soccer League).
It would depend on where you live ... guessing that your from the US by calling it soccer and not football there are not many people that are into that sport in the US but world wide it is the most plaied sport ...
there is the women's us soccer team.
By pro I guess you mean MLS which is the first tier of American soccer, in that case it's 15 teams.
It would probably be soccer, it is a VERY common sport and many people enjoy it. I play soccer and I also enjoy it.
Sporting Kansas City, LA Galaxy and New England Revolution are some top soccer teams in the US.
Total Professional Teams 76 Mens teams include 12 from Major League Soccer (MLS) 12 from the First Division United Soccer League (USL) 9 from the Second Division United Soccer League (USL) 6 teams in the Major Indoor Soccer League (MISL) Womens teams include 37 teams in the W-League a part of the USL
Yes, it is!!
Not that many because it is not broadcasted a lot. football is the most watched sport.
I believe its the bald eagles
America and Chivas.