Topeka is a city in Kansas.
Background
Due to fear of being attacked by trogs, a survivor named Ken in the Pitt decided to move to Topeka, as it "couldn't be any worse than up here."[1]
Appearances
Topeka is mentioned only in Fallout 76, introduced in the Expeditions: The Pitt update.
Behind the scenes
Topeka is a real world city in Kansas.