Well, on the episodes aired, I believe he has a mother and a father, two cousins and an uncle, that is just what I have seen though.
Father SquarePants
Mother SquarePants
Cousin Todd SquarePants (in the books)
Cousin BlackJack SquarePants
Cousin Stanley S. SquarePants
Uncle Cap'n Blue SquarePants
Uncle Sherm SquarePants
5 spongebob have 5 friends but sometime's spongebob act like plankton is his friend
spongebob has got no films but he has brought 3 out
50 Holes !(:iiLove SpongeBob SquareePants !lmao ahah
Many relatives attended him during illness'?
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1000 And 6 Times
68.02301% of American population think that spongebob is annoying
No, a prisoner did not invent SpongeBob. SpongeBob was created by Steven Hillenburg, who according to many resources, has never been in prison before.
There are currently [February 08th 2018] 228 episodes of SpongeBob SquarePants.
I imagine she had many relatives. Both her mother and father came from large families.
Spongebob Squarepants went to Shell City facing monsters, tough guys, and the cyclops. Spongebob went on an adventure in the Lost City of Atlantis. Spongebob has faced the Flying Dutchman many times before. Spongebob is an adventurer.
SpongeBob has won "favorite Cartoon" Nine times in a row.