How Old Is Spongebob 2023 Character. Born on july 14, 1986, the character could have been 34 when the thirteenth season. In the episodes, “sleepy time” and “no free rides,” spongebob’s birthday is listed as july 14th of 1986.
By the end of the show, spongebob is 36 years old, though he doesn’t appear to have physically aged. When spongebob squarepants first hit.
