Statistical urbanisation is ~80%. I'd rather say, apart from the primacy Paris with its own dimension, the French urban population might be quite decentralised.

Yeah, this is true elsewhere too. Here in Austria, "Graz" is a region that contains most of the important parts of Styria (Steiermark), and "Steiermark" is one that contains mostly mountainous parts of what's now Styria plus most of Carinthia.