Check out the local PMI chapter in your area. Many chapters provide education opportunities and PMP prep classes.
Search online for the multitude of colleges and universities offering Project Management courses.
If you have the required experience and education but just need the certification, search online for accelerated PMP prep courses. These courses are normally a four day intensive course preparing you for the PMP certification test. Timing is everything when you go this route, so make sure you have your course and test all lined up together.