1st, absolutely under no circumstances should you move to Chester! If you mean West Chester or Chester County that is a completely different story. I'm sorry if I offend anyone on here, but you might as well move to West or North Philly.
I don't know if you or your partner are working there or what, but it is not the place to raise a kid. Have you been there? Choose something like Media or Swarthmore/Wallingford etc. Your profile looks like you might fit in well in Swarthmore. That area has Swarthmore College and they are very "granola" etc. Check out the website www.Swartmore.edu and there should be links to housing in the area. There is also a great toddler park there.
Good luck....but seriously don't move to Chester!