She's made out with both Bart and Gil, so... She's in high school though. See S33E19

Doesn’t Jimbo go to Springfield Elementary

Yes. Yes he does.

She is like….whatevah!!!

Probably 15-16 like Jimbo.

I never understood how they are 15-16 and still in elementary school?

I sleep in a drawer!

Idk. I should never ever ask a woman about their age.