The following is a compiled list of instances where a character has been grounded:

Accused Episode Reason Duration
Kyle Broflovski "Mr. Hankey, the Christmas Poo" Talking about Mr. Hankey and also (accidentally) framed by Mr. Hankey for spreading poop all over the bathroom. Unknown (Lifted)
Kyle Broflovski "Ike's Wee Wee" Kidnapping Ike by sending him off to Nebraska to avoid his bris; creating a decoy that was destroyed by a dog then run over by a gas truck. Unknown (Lifted)
Stan Marsh "Merry Christmas Charlie Manson!" Going by himself to spend time with his friends at Cartman's grandma's house in Nebraska for Christmas after he was not given his parents' permission to go. Unknown
Eric Cartman South Park: Bigger, Longer & Uncut Going to the Terrance and Phillip movie after he was told not to see it again as a nasty change and for killing Kenny by mistake. 3 Weeks (Lifted when they found out about the Canadians are not bad).
Stan Marsh and Kyle Broflovski South Park: Bigger, Longer & Uncut Going to the Terrance and Phillip movie after they were told not to see it again as a putrid change and for killing Kenny by mistake. 2 Weeks (Lifted when they found out about the Canadians are not bad).
Christophe South Park: Bigger, Longer & Uncut Swearing at God. Letting any curse words be illegal is a horrible change. 3 days, lifted as he passed away
Unnamed kid "Cartman's Silly Hate Crime 2000" Being late for visiting time while in juvenile hall. Unknown
Stan Marsh "Proper Condom Use" Masturbating his dog (grounding lifted as he didn't know what he was doing). 10 months (Lifted)
Butters Stotch "How to Eat with Your Butt" Making a Funny Face in School Photo. 1 Week
Butters Stotch "Jared Has Aides" Getting fat from gorging on "City Wok" food and getting liposuction. He later gets in more trouble when Cartman calls his parents on the phone pretending to be him and swearing at them. 5 days, later Unknown
Butters Stotch "Freak Strike" Appearing on Maury Povich show with false testicles on his chin, which humiliated his parents and caused his grandmother to have a heart attack. Unknown
Butters Stotch, Stan Marsh, and Kyle Broflovski "Fun with Veal" Stealing baby calves and using naughty words (even swearing) at their parents. Unknown
Eric Cartman, Kyle Broflovski, Stan Marsh, and Kenny McCormick "Butt Out" Smoking cigarettes and burning down the school on accident. 3 Weeks
Eric Cartman "The Passion of the Jew" Trying to exterminate the Jews. Although he isn't grounded in the episode, Liane mentions that he is in "AWESOM-O." 3 Weeks
Stan Marsh "Goobacks" Saying a racial slur and for swearing at the manager of his yelling in a fast-food restaurant. Unknown (Lifted)
Butters Stotch "Stupid Spoiled Whore Video Playset" Dating Paris Hilton Unknown (Lifted)
Butters Stotch "Stupid Spoiled Whore Video Playset" Running away from Paris Hilton Unknown
Butters Stotch "The Death of Eric Cartman" Room destroyed by Cartman Unknown
Butters Stotch "Imaginationland, Episode III" Not helping his mom clean out the basement. Unknown
Kyle Broflovski "Major Boobage" Thought to have been cheesing a cat (lifted after his father later cheesed). Unknown (Lifted)
Butters Stotch "The Ungroundable" Accused by his father for pouring Rice-A-Roni in his coffee (Stephen and Linda actually did this to test if they could ground him again). Unknown
Butters Stotch "The Tale of Scrotie McBoogerballs" Framed for having written a dirty book. Unknown
Eric Cartman "Coon 2: Hindsight" Swearing and beating up his friends. Unknown
Eric Cartman "Coon vs. Coon & Friends" Sneaking out of his room while grounded (lifted by him using the "Lebron James technique") Unknown (Lifted)
Eric Cartman "HUMANCENTiPAD" Swearing and lying to his mother at Best Buy and for getting the police involved. Unknown
Butters Stotch "City Sushi" Starting an "Asian Turf War." Unknown (Lifted after Mr. Kim's true identity is found out)
Butters Stotch "City Sushi" Breaking into a jewelry store and shattering store windows, stealing jewelry "Ground the shit out of him."
Butters Stotch "Sarcastaball" Passing his semen off as an energy drink. 1 Month +
Stan Marsh "Titties and Dragons" Framed for defecating in a man's yard. <1 Day (snuck out to face Cartman)
Stan Marsh "Freemium Isn't Free" Spending $489 on the Terrance and Phillip mobile game. Unknown
Butters Stotch "Grounded Vindaloop" Punching his dad in the balls and stealing a car. Being grounded both in VR and real life. Long Time (Lifted after Stan breaks the vindaloop)
Butters Stotch "Oh, Jeez" "Pressing pickle" at a nail salon. Unknown
Ike Broflovski "Members Only" Believed to be Skankhunt42 by Sheila Broflovski. Further Notice (Lifted when she found out that it wasn't him)
Kyle Broflovski "Not Funny" Trying to escape the house. Further Notice (Lifted when Shelia found out that Ike wasn't Skankhunt42)
Kyle and Ike "The End of Serialization as We Know It" Locking Shelia in the pantry and going on the computer again. Forever (Lifted when Shelia found out that they were innocent)
Butters Stotch Franchise PrequelSpreading false information on Facebook. Unknown
Vladimir Putin "Franchise Prequel" Thinking that spending false rumors on Facebook is okay. Unknown
The New Kid "South Park: The Stick of Truth" Getting lost in the Lost Forest Unknown (likely to be a short time, less than a day)
The New Kid "South Park: The Stick of Truth" Fail to reach home promptly when the night descends For the night
The New Kid "South Park: The Stick of Truth" Misbehavior at school. Unknown (This will cause a Game Over)
Stan Marsh "Tegridy Farms" Stealing the vape pen from the kindergartner. Unknown (Lifted)
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