Good responses MontanaDad.
Yes, most CC schools compete only with other CC schools in the area. Some will compete in different divisions of CC(There are 3 divisions, I II III) based on location, while others will only play schools in their division, or league.
Another big difference in the different CC, is the fact that in JUCO I and II, scholarship money can be grated, while in Div. III, no athletic scholarships can be given out. So in many ways, it is very similar to the NCAA.
http://www.HackettBaseball.com