Writing a modern fantasy, need help with what to call people born in our world

Mundies and muggles are the only two names I can think of off the top of my head even though I know there are more. My story includes creatures that are from different dimensions called upworlders and downworlders. I need something to call the people that were born in our world. My first thought is Earthlings but I think that sounds too science fiction. Does anyone have any ideas? I'd love to hear some of the names other people have come across, they might give me some inspiration.