I am a single mom and want to go back to school for web design & development. Where can I apply for

Check your local college and also look into online schools it greatly depends if you want to go to class or online you can do it in your spare time.You can get finical aid for both.

Community colleges or local state schools can be a great place to start when considering going back for a degree, professional training, etc. They tend to be largely affordable and usually close by as well. The downside of course is that scheduling can often be a hassle, dependent largely on whether you're planning on going back to school full time or working at it part-time with a job. I am assuming you're in the latter camp.

In my experience, I would avoid online courses or certificate/degree mills like the plague. They often cost a LOT more than you would expect and in most cases you're not getting what you paid for.