Local Community Big Bands/Jazz Bands

[tptLad]

Welp, first time on this side of the forum!
I'm wondering if anyone could point me to some local community jazz/swing bands in the North County San Diego area (ie Escondido/San Marcos/RB/Valley Center) I am a high school junior, and I feel like I have kind of grown out of my very small school's band program (for perspective, every year about 25% of our band has never played anything before, so our level of difficulty is fairly low). I typically work on much more challenging pieces on my own, but its a much more different experience. I would love to sit in on some rehearsals and maybe sub once in awhile.

Thanks!
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"Life is a lot like jazz… it's better when you improvise." - George Gershwin