Ok - if that's how it's done, for consistency's sake - I need a set of clearly defined rules. As I mentioned originally, 'largest cities' is very open-ended. As also varies significantly from state to state. Are the 'largest cities' incorporated cities? Does that also include townships? Can it not include suburbs? Who defines whether said place is considered a suburb or not? If Lapeer - being the largest city in Lapeer County - isn't going to be considered a city - then what does? We need population perimeters, geographic perimeters, etc. in order to determine the correct classification, given OSM's lack of a clear definition.