We were told at our Financial Aid night at school that it doesn't matter whether parents are in college or not. Only kids in the household are to be counted on the FAFSA. Which stinks for us, because DH is currently in grad school.
IIRC parents in college count but with some limitations. I didn't pay a lot of attention to that because I don't plan on going on to grad school and should be done with my degree before DS starts college, but I did register that if I am still in school when he starts I would count myself as well as him in the "number in college" calculation. Maybe that is only for undergrad?
ETA: I looked it up and this is what I found:
"The rules for including someone in number in college are as follows:
The student is always included.
Other members of the household,
except the parents, may be included if they are or will be enrolled at least half time in a program that leads to a college degree, certificate, or recognized education credential at a Title IV institution and for whom the family may reasonably be expected to contribute to their postsecondary education. (West Point and other service academies do not count as Title IV institutions, so siblings who are attending a service academy are not included in the number in college.)
The parents are included at the discretion of the financial aid administrator if they are or will be enrolled at least half time in a program that leads to a college degree, certificate, or recognized education credential at a Title IV institution." (
http://www.finaid.org/educators/pj/householdsize.phtml)
So basically it is going to vary from school to school. The event I went to was at the community college I transferred from, so it seems likely they'd include parents, but this wording seems to leave it up to each school to make its own determination on whether to count parents in the financial aid calculation which is of exactly zero help in knowing how to answer that question on the FAFSA. Makes me glad I decided to go back to finish my degree when I did - the original plan was to wait another year, when we'll be down to just the youngest in private school, but that would have made for at least two, possibly three, semesters of overlap between the time DS starts college and when I finish and that would be more of a challenge, financially, than balancing my college costs with the girls' private elem tuition.