Artemis · Andy Weir, 2017
How big is the city of Artemis?
~0.5km
The whole city is about half a kilometre across. Five bubbles, home to about 2,000 people.
From the bookReal world
Artemis sits on the Sea of Tranquility, near where Apollo 11 landed. It's five spheres joined by tunnels: Armstrong in the middle, with Aldrin, Conrad, Bean and Shepard around it.
The sizes follow the book and Andy Weir: bubbles 200 m across, Armstrong 100 m, each half underground with floors stacked inside. Which bubble sits on which side is mostly the map's guess; only Aldrin's place on the east, by the Port of Entry, is from the book.
Everything outside is a long walk in a suit: the Sanchez smelter is about 1 km south, and Apollo 11 about 40 km away by train.
See Artemis in 3D