I'm not sure we'll ever learn it.I keep hearing October 23, 1975. Is that true and when do we learn this?
Yeah. I agree with you. :PI don't think his exact birthdate has been revealed. He's probably in his 30's. Older than SpongeBob but younger than Mr. Krabs.
It's a cartoon, cartoon characters doesn't really have age, even though I believe you can say he's 9 years old because he was created in 1999 and maybe before, but that's not his age on the show because he doesn't really have one.