Her first thought is 'the Capitol', but then, 'north' could just be referring to location. And City One, the capitol of District Four, is big for a district city. Or, so she gathered from her Victory Tour.

"Ohhh, okay." She grins, quickly. "Cities are like that. You kinda forget there's anythin' outside 'em. Or. Outside your country.

Do they have spaceships? In your world?"