You'll need to read the labels when shopping in person unless you use a site like this a directory:
Made in the USA Products Directory
or if you buy direct from local to you manufacture stores online like this:
Green Toys Inc. - Environmentally Friendly Eco Toys, Safe, No BPA or Phthalates - Made in USA
(hint hint-instead of Petsomething store buy an item from a Yorkie talker who manufactures it themselves!)
For fun here's some all American web stores:I think most of these are pretty over priced...
Welcome to Proud American Trading Post - Where Proud Americans Shop... Made in USA, Made in America, US, American-Made Still Made in USA.com - American-Made Products for Home and Family
Unfun fact:Coach the "American" designer brand...Made in China!