In the school district I live in (Monroe-Woodbury, Upstate in Orange County) The YMCA runs the after school program IN the various schools. I send both my 2 youngest and it works out nicely. They are pretty reasonable compared to other places and they do offer a discount for siblings. I understand that they do this in many places. In our case, the school doesn't actually have the info you are looking for. You may want to call the local YMCA and ask them directly if they have an after school program in the schools you are concerned with.
Good Luck, and have a Happy Thanksgiving!