You've heard of a one-horse town, but what about a one-person town? Scattered throughout the U.S. are places with populations you can count on one hand — and sometimes one finger. Some of these places were evacuated after devastating environmental disasters, others simply saw residents move away as local businesses closed and economic opportunities faded. But each of these places has an intriguing story worth telling, and each one is home to some unique residents — or at least one. So check out these lonely locations, grab some friends, and plot out a population-doubling road trip.