In December 2009, Nickelodeon ordered enough episodes to bring the series up to 178 episodes. Previously, when season seven was announced in March 2008, the number of episodes was brought up to 152 episodes. Season 8 first aired on March 26, 2011 with the episodes "Oral Report" and "A Friendly Game" and ended on December 6, 2012 with "It's a SpongeBob Christmas!" It consists of episodes 153-178. On April 12, 2012 it passed Rugrats, which had 172 episodes, and afterwards became Nickelodeon's longest running cartoon. The season was released on DVD on March 12, 2013, three months after it had completed broadcast on television. Season 8 consisted of 42 11-minute segments and five 30-minute specials.
| Title card | # | Title | U.S. airdate | U.S. viewers (millions)
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|---|---|---|---|---|
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153a | "Accidents Will Happen" (tr • ga) | July 18, 2011 | |
| Squidward is injured at work and forces Mr. Krabs to pamper him while he recovers. | ||||
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153b | "The Other Patty" (tr • ga) | June 25, 2011 | |
| Mr. Krabs and Plankton unite in their dislike of a new eatery called the Flabby Patty. | ||||
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154a | "Drive Thru" (tr • ga) | July 19, 2011 | |
| After Mr. Krabs finds a hole in the walls of The Krusty Krab, he transforms it into a drive-thru. | ||||
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154b | "The Hot Shot" (tr • ga) | June 18, 2011 | |
| SpongeBob gets driving lessons from the son of a legendary race-car driver. | ||||
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155a | "A Friendly Game" (tr • ga) | March 26, 2011 | |
| SpongeBob builds his own mini-golf course in his house. | ||||
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155b | "Sentimental Sponge" (tr • ga) | April 2, 2011 | |
| SpongeBob struggles to part with some items because of the memories they evoke. | ||||
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156 | "Frozen Face-Off" (tr • ga) | July 15, 2011 | |
| Everyone in Bikini Bottom is participating in a worm-sled race to win one million dollars. | ||||
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157a | "Squidward's School for Grown-Ups" (tr • ga) | June 4, 2011 | |
| Patrick tries to act mature after he grows a beard. | ||||
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157b | "Oral Report" (tr • ga) | March 26, 2011 | |
| SpongeBob is nervous about giving an oral report for Boating School. | ||||
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158a | "Sweet and Sour Squid" (tr • ga) | July 20, 2011 | |
| Plankton attempts to strike up a friendship with Squidward in order to get the secret formula. | ||||
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158b | "The Googly Artiste" (tr • ga) | July 21, 2011 | |
| Patrick's artwork is coveted by everyone in town after an art critic praises it. | ||||
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159 | "A SquarePants Family Vacation" (tr • ga) | November 11, 2011 | |
| Patrick goes on vacation with SpongeBob's family to the Great Barrier Reef. | ||||
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160a | "Patrick's Staycation" (tr • ga) | November 8, 2011 | |
| SpongeBob comes up with a solution when Patrick cannot afford a vacation. | ||||
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160b | "Walking the Plankton" (tr • ga) | November 7, 2011 | |
| Mr. Krabs and SpongeBob go on a free cruise, and Plankton follows them. | ||||
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161a | "Mooncation" (tr • ga) | November 10, 2011 | |
| Sandy takes SpongeBob to the moon for a vacation. | ||||
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161b | "Mr. Krabs Takes a Vacation" (tr • ga) | November 9, 2011 | |
| Mr. Krabs takes a vacation from work. | ||||
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162 | "Ghoul Fools" (tr • ga) | October 21, 2011 | |
| SpongeBob and Patrick find a houseboat haunted by ghost pirates. | ||||
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163a | "Mermaid Man Begins" (tr • ga) | September 23, 2011 | |
| SpongeBob and Patrick learn the story of their heroes' origins. | ||||
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163b | "Plankton's Good Eye" (tr • ga) | September 23, 2011 | |
| Plankton acquires a second eye, which changes his personality, and his vision. | ||||
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164a | "Barnacle Face" (tr • ga) | September 16, 2011 | |
| SpongeBob attempts to remove a barnacle from Pearl's face. | ||||
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164b | "Pet Sitter Pat" (tr • ga) | September 16, 2011 | |
| Patrick watches Gary while SpongeBob attends a birthday party for his grandmother. | ||||
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165a | "House Sittin' for Sandy" (tr • ga) | September 30, 2011 | |
| SpongeBob agrees to be Sandy's house sitter, but things go wrong when Patrick arrives. | ||||
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165b | "Smoothe Jazz at Bikini Bottom" (tr • ga) | September 30, 2011 | |
| SpongeBob and Squidward try to sneak backstage at a concert after losing their passes. | ||||
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166a | "Bubble Troubles" (tr • ga) | November 25, 2011 | |
| SpongeBob and Patrick search for oxygen for Sandy, after they ruin her oxygen supply. | ||||
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166b | "The Way of the Sponge" (tr • ga) | November 25, 2011 | |
| SpongeBob works toward getting a karate belt. | ||||
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167a | "The Krabby Patty That Ate Bikini Bottom" (tr • ga) | November 25, 2011 | |
| A Krabby Patty grows too large after Mr. Krabs adds Sandy's scientific ingredients to it. | ||||
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167b | "Bubble Buddy Returns" (tr • ga) | November 25, 2011 | |
| SpongeBob attempts to keep Bubble Buddy's son out of danger. | ||||
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168a | "Restraining SpongeBob" (tr • ga) | April 2, 2012 | |
| A fed-up Squidward resorts to legal action to keep SpongeBob away from him. | ||||
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168b | "Fiasco!" (tr • ga) | April 5, 2012 | |
| Plankton mistakenly swipes a piece of art, instead of a Krabby Patty. | ||||
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169a | "Are You Happy Now?" (tr • ga) | March 31, 2012 | |
| Squidward can't recall his happiest memory, so SpongeBob "helps" him create one. | ||||
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169b | "Planet of the Jellyfish" (tr • ga) | March 31, 2012 | |
| SpongeBob and Sandy battle an evil jellyfish who have cloned other Bikini Bottomites. | ||||
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170a | "Free Samples" (tr • ga) | April 6, 2012 | |
| Mr. Krabs loses patrons because of Plankton, so he resorts to giving food away for free. | ||||
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170b | "Home Sweet Rubble" (tr • ga) | April 4, 2012 | |
| SpongeBob gets his pals to help him fix up his pineapple home, which is in need of serious repairs. | ||||
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171a | "Karen 2.0" (tr • ga) | April 13, 2012 | |
| When Plankton upgrades to Karen 2, the original Karen leaves, and gets a job at the Krusty Krab. | ||||
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171b | "InSPONGEiac" (tr • ga) | April 9, 2012 | |
| When SpongeBob can't get enough sleep, he asks for help from Patrick. | ||||
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172a | "Face Freeze!" (tr • ga) | July 21, 2012 | |
| SpongeBob and Patrick's faces freeze after doing too many silly faces at each other. | ||||
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172b | "Glove World R.I.P." (tr • ga) | April 3, 2012 | |
| SpongeBob and Patrick spend a final day at Glove World before it shuts down forever. | ||||
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173a | "Squiditis" (tr • ga) | April 11, 2012 | |
| SpongeBob fears he has caught Squidward's illness. | ||||
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173b | "Demolition Doofus" (tr • ga) | July 21, 2012 | |
| Mrs. Puff enters SpongeBob into the Demolition Derby, where his bad driving makes him a star. | ||||
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174a | "Treats!" (tr • ga) | April 10, 2012 | |
| Gary is eager to indulge in some snail snacks SpongeBob brought home. | ||||
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174b | "For Here or to Go" (tr • ga) | April 12, 2012 | |
| Plankton wins a free Krabby Patty, but Mr. Krabs is determined not to let him have one. | ||||
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175 | "It's a SpongeBob Christmas!" (tr • ga) | December 6, 2012 | |
| Plankton turns everybody in Bikini Bottom naughty by feeding them his special Jerktonium fruitcakes all in an effort to get his Christmas wish. | ||||
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176a | "Super Evil Aquatic Villain Team Up is Go!" (tr • ga) | October 14, 2012 | |
| Plankton and Man Ray join forces, and try to override the Krusty Krab. | ||||
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176b | "Chum Fricassee" (tr • ga) | October 21, 2012 | |
| Squidward quits his job, and starts working at the Chum Bucket, where his cooking makes him famous. | ||||
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177a | "The Good Krabby Name" (tr • ga) | September 3, 2012 | |
| Mr. Krabs wants to promote the Krusty Krab. | ||||
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177b | "Move It or Lose It" (tr • ga) | October 21, 2012 | |
| Mr. Krabs and Plankton circulate petitions about the bulldozing of a Bikini Bottom restaurant. | ||||
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178 | "Hello Bikini Bottom!" (tr • ga) | October 8, 2012 | |
| Mr. Krabs takes over as band manager for SpongeBob and Squidward. | ||||