The population of Castelnuovo Berardenga is 8,847.
The population of Castelnuovo Nigra is 424.
The population of Colleretto Castelnuovo is 362.
The population of Castelnuovo Belbo is 913.
Castelnuovo Parano's population is 894.
Castelnuovo Bormida's population is 698.
The population of Castelnuovo Calcea is 790.
Castelnuovo Cilento's population is 2,251.
Castelnuovo Scrivia's population is 5,508.
Castelnuovo Rangone's population is 13,856.
The population of Castelnuovo Magra is 7,948.
Castelnuovo Bozzente's population is 810.
Castelnuovo di Conza's population is 975.