This question is so popular that we dedicated an entire post to it!
The #1 way to locate a midwife is by word of mouth. Seek out other home birth families in your area. Talk to local doulas and childbirth educators. They often will be connected to other birth professionals in the area, including midwives. Look for places where holistic or naturally-minded people tend to frequent, such as health food stores, etc. If you live near an Amish or Mennonite community, they may have information to share. Finally, use online resources such as our post mentioned above.