Where do I find the count of Total Unique Searches in Google Analytics

If you have your site-search tracking setup properly with Google Analytics, here is where you find the data you need to measure how many searches you've had.

You will find Total Unique Searches, under:

BEHAVIOUR ->SITE SEARCH ->OVERVIEW

Google Analytics_Searches

If you see zero in this section, either adjust your dates to capture a period where searches would have occurred, or make sure you have setup you search tracking correctly. Follow this article to setup up search tracking.