where is the starter for a 2009 nissan xterra located.

Not to hard. It is located under the vechicle. You will need to remove the under-engine cover to get to it. Here's the procedure http://www.ehow.com/how_7335836_replace-2006-nissan-xterra-breakdown.html

IT TAKES ABOUT 1 HR ITS LOCATED UNDER R/H SIDE EXH MANIFOLD SHIELD TO GAIN ACCESS