We get that you can’t wait to hit the road, but you should know a thing or two about where you’re headed! Here are some basic facts about Wailuku to get you started.This town sits 9 miles to the east of Napili-Honokowai, and 4,785 miles west of Washington, the nation’s capital.It can be useful to know how many people reside in the place you’re planning to visit. In this area of Maui County, the population is approximately 15,300.