According to the data of 2017, in south korea  84 percent of population were active on  social media.

the  popular social media networks in south korea which is used by population  are:

1.   you tube  with 74% 
2. facebook  with 62%
3. kakaotalk  with   58%
4. instagram  with 39%
5. google+  with 29%
6. twitter  with 28%
7. facebook messenger  with 24%
8. skype  with 10%
9.  tumblr  with 10%
10.  wechat  with  7%