There are seven including Marge, Maggie, Lisa, Bart, homer and many other people.
Well in the Simpson's family there is Bart, Lisa, Maggie, Marge, Abe and Homer so 6 (not including pets) ;)
She's in at least 2 that I"ve seen.
Actually 5. Bart, Lisa, Maggie, Barts evil twin brother (loft) and he has another older brother that lives somewhere else. I can't remember but he was only ever in one episode. So, yea, 5 kids
over 200