In my search a couple days ago, I found this link to several good lists of interracial children's and young adult's books at CynthiaLeitichSmith.com. Smith is a New York Times bestselling author and has won awards for her writing. Learn more about her on her Website and check out the "complete site map" and expand to find lists. It'll look something like this:
One of her books:
RAIN IS NOT MY INDIAN NAME by Cynthia Leitich Smith (HarperCollins, 2001) (Listening Library, 2001)
"The story of Cassidy Rain Berghoff, who reconnects to her family and community after the death of her best friend through the lens of a camera. Ages 10-14. For this book, Cynthia was named a 2001 Writer in Children's Prose from Wordcraft Circle of Native Writers and Storytellers (among other honors)."