I also lived in the quiet part of Northridge. I would suggest asking another family what they do and if you could go together. Halloween is not just about candy, it is about getting to dress up and being part of the fun that the community is having together. Your oldest is getting to the age where it can be a social celebration and it is much more fun for the parents to stroll the streets together. Our funnest Halloweens are when we are part of a community of friends. Also, don't forget to trick or treat on your block, even if it is only the houses closest to you to share the cute costumes with your neighbors and to remind them that there are children that live here too. You want your kids to know their neighbors faces, the neighbors to know your kids and to feel that they are part of the village looking out for your children. The seniors on our old block really looked forward to seeing our costumed characters, and being allowed to still share in the festivities now that their little ones have grown-up and don't live at home anymore. Think of it as a good deed and an investment in neighborliness for the rest of the year. Just look for the houses that have their front porch lights on, that is the sign that they are willing to have their doorbell rung. We did our block then went to a friend's home or the opposite, leaving the friend's early enough to still do our block.
Have fun and don't forget to take lots of pictures.