It means that the population living outside cities in more rural areas is steadily getting older, overall.
The average age of the population is getting older. And as you get older your hair gets.... greyer.
Khatauli Rural's population is 10,737.
Bingley Rural's population is 16,649.
Gurgaon Rural's population is 17,100.
The population of Rural Metro is 8,000.
The population of Narayanpur Rural is 5,221.
The population of Shravanabelgola - Rural - is 6,394.
The population of Shrirampur- Rural - is 7,510.
Rewari - Rural -'s population is 4,453.
Veysian Rural District's population is 6,131.
Bardesareh Rural District's population is 7,530.
The population of Farsesh Rural District is 3,132.