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.
The population of Rural Metro is 8,000.
The population of Narayanpur Rural is 5,221.
The population of Shravanabelgola - Rural - is 6,394.
Khatauli Rural's population is 10,737.
Gurgaon Rural's population is 17,100.
Bingley Rural's population is 16,649.
The population of Shrirampur- Rural - is 7,510.
Rewari - Rural -'s population is 4,453.
Mamulan Rural District's population is 3,825.
The population of Manjilabad Rural District is 48,679.
The population of Azari Rural District is 13,596.