What drives city maintenance cost?

[Gen. Maximus]

For every city, there is maintenance and distance from capital cost. What drives maintenance cost? Does number of building inside cost maintenace to go up like Civ3? Or is it driven by population size?

 

[seizer]

Population and number of cities. This article has some useful information; although it is made for vanilla I believe much of the info is still accurate.

 

[InFlux5]

That article is great, I highly recommend it.

 

[Silence101]

Garbage, Police, Highways...