We get that you’re eager to hit the highway, but it’s good to know a thing or two about where you’re headed! Here are some basic details about Waipahu.It sits 4,847 miles to the west of Washington, the buzzing national capital.If you’re traveling with the kids and they’re tired of the license plate game, why not quiz them to see if they know what the population of this part of Honolulu County is? (Just in case you’re wondering, it’s 38,200!)