This question drove me up the wall. I think I searched for the answer for the last year and it was right in front of me. I signed up for Google Analytics (you can sign up yourself HERE) and found my total subscribers right away.
There is a lot of great information which I haven’t quite figured out how to use yet, but some day I might. I thought that if I can save one person from having to search for this the hard way, it would be important to share.
I FORGOT THIS PART OF THE POST
Once you sign up for Google Analytics, sign in to your account.
It will default to a monthly view and you can change this by clicking on the tabs in the upper right hand corner. You will have a choice of DAY WEEK MONTH YEAR
Then scroll down and where you see your blog address, click on VIEW REPORT
On the right side of this screen, you will see a DASHBOARD, click on the second option, VISITORS and you will get your total number of unique visitors.