To be certain, you should:
* Consult your owner's manual: This is the most reliable source.
* Check online repair manuals: Sites like Chilton or Haynes offer repair manuals specific to your S-10's year and engine.
* Search online forums: Search for "[your S-10 year and engine] fuel filter location" on forums dedicated to Chevy trucks. You'll likely find photos and descriptions from other owners.
Without knowing the specific year and engine of your S-10, I cannot give a precise location.