Below are comments from Washington Fish and Wildlife.  Please check out the PDF mentioned as it has a lot of good information on Black Bears.  Here are some of the pictures from my cameras.

It will be important that the neighborhood tries to keep as many attractants secured as possible.. Even if only one house has something available the bear will come to your area.. You can send out the PDF on our website here: http://wdfw.wa.gov/living/bear.pdf that tells you what they are most attracted too. Fruit trees are some of their favorite things.. but garbage is by far the biggest attractant.