Mario's Planet
From Marioverse Wiki
Mario’s Planet, also known as Earth, is the planet where Mario and his friends reside. Notable locations include the Mushroom Kingdom, Yoshi's Island, Donkey Kong Island, Sarasaland, and New Donk City. It is presumed to be Earth in an alternate universe, with its own physical quirks.
Physical Characteristics
Mario’s Planet is presumably a spherical planet. It is made up of four large continents, three island continents, along with several smaller islands. Nin's surface is XX% water and YY% dry land.