Earth is a real-life water-based planet that lies in a habitable zone of the Milky Way galaxy. In the solar system, it is the third planet from the sun. Though approximately 71% water, it still contains enough land to inhabit the entire human race, among numerous other fauna species that exist on land, (as well as a large array of aquatic species), and a vast variety of flora species as well.
The planet serves as the main setting of Milo Murphy's Law as it's main character, Milo Murphy is an inhabitant of the planet, though many episodes have featured plots that leave the location. It is notably also the main setting of the show's sister series, Phineas and Ferb.