How Old Are South Park's Main Characters? (2024)


  • The main characters of South Park never age past childhood, as their youth and naivety are crucial to the show's satirical humor.
  • Eric Cartman, Stanley Marsh, and Kyle Broflovsky are all 10 years old, while Kenny McCormick is 9.
  • The creators intentionally kept the main characters the same age to maintain the comedic premise of the show, which has contributed to its longevity.

Created by Trey Parker and Matt Stone in 1997, South Park remains one of the longest-running animated series in the history of American television. The beloved cartoon follows the daily exploits of Eric Cartman, Stanley Marsh, Kyle Broflovsky, and Kenny McCormick, a foursome of juvenile 4th-graders who navigate adolescent life in South Park, Colorado. Despite being on the air for 25 years, the main characters never age a single day, leaving many to wonder how old the main characters are on the show.

Thankfully, throughout the 330 episodes aired thus far, the ages of the main characters have been revealed along with their specific birthdays, leaving little doubt as to how old Eric, Stan, Kyle, and Kenny are on the show. However, there's also a worthwhile theory about why the characters never age past their childhood, which may account for why the show has lasted so long. In any case, it's time to find out the ages and birthdays of the main South Park cast members.

The South Park Main Character's Ages

How Old Are South Park's Main Characters? (1)
South Park

Release Date
August 13, 1997
Trey Parker , Matt Stone , April Stewart , Mona Marshall
Main Genre

Comedy Central






Jul. 1



Oct. 19



May 26



Mar. 22

Eric Cartman

10 Years Old

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While it's believed that the primary quartet of South Park characters are between 8 and 10 years old, Eric Cartman is currently stated to be 10 years old. Eric was born on July 1st and remains in 4th grade. Parker and Stone based Eric's personality on Archie Bunker from the sitcom All in the Family, but felt such a politically incorrect adult would never fly with audiences.

Instead, the creators thought it would be more acceptable to put such a crass and irreverent character into the body of an "animated nine (formerly eight) year-old boy." Therefore, while Eric began his arc on South Park as an 8-year-old, he has only aged two years throughout the long-running animated show's 26-season run. When Season 27 of South Park returns later in 2024, Eric Cartman will still be 10 years old.

Stanley Marsh

10 Years Old

When Stanley Marsh is introduced, he is seen attending Mr. Garrison's 4th-grade elementary class (formerly 3rd grade). Therefore, he too began the series as an 8-year-old. However, as revealed in the episode "You Have 0 Friends," Stan was born on October 19th and is currently a 10-year-old. His birthday makes him a Libra sign, and in many ways, his personality reflects his astrological sign.

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For instance, despite his criminal record, Stan often exudes Libra's leadership qualities throughout the series, be it captaining a pirate ship or spearheading a sporting event. Libras are often friendly, extroverted, and artistic, with Stan's musical talents reinforcing such a personality. Although Stan can also betray his astrological traits at times, he too remains 10 years old as the show nears Season 27.

Kyle Broflovsky

10 Years Old

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Often depicted as the most intelligent of the four protagonists, Kyle Broflovsky is also the only Jewish member of the gang; a characteristic that often conflicts with the boy's worldview on the show. Also revealed in the episode "You Have 0 Friends," Kyle was born on May 26th and is currently 10 years old. Along with Eric, Stan, and Kenny, Kyle remains in the 4th grade as Season 27 approaches.

Although the first 58 episodes of South Park portrayed Kyle and the others in Mr. Garrison's 3rd-grade class, the vast majority of the Comedy Central original TV show takes place in Mr. Garrison's 4th-grade class. Despite failing to graduate, Kyle has also been described by Mr. Garrison as "smart" and an "A+ student," indicating his intellectual superiority over his pals. Of course, being born on May 26th makes Kyle a Gemini, with his dual nature as a smart but immature kid reinforcing his astrological characteristics.

Kenny McCormick

9 Years Old

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Notorious for dying in nearly every episode, Kenny McCormick defies the laws of life and death as well as age. However, as revealed in the episode "C*** Magic," Kenny is a nine-year-old boy who was born on March 22nd. That makes Kenny one year younger than his friends, despite sharing Mr. Garrison's 4th-grade class with them. According to Trey Parker, the character was inspired by a real boy named Kenny whom he knew as a child.

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Born on the cusp of Pisces and Aries, Kenny's personality is all over the place. While best known for dying in grisly ways, his criminal record and multiple police arrests fly in the face of his kindness, loyalty, and deeply empathetic side. Kenny may often be the butt of the joke on South Park, but he's often portrayed as being more mature than his slightly older counterparts. By all accounts, Kenny will still be nine years old when Season 27 premieres.

Why The Main Characters Never Age

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The childlike naivety and youthful ignorance of Eric, Stan, Kyle, and Kenny are often why the satirical humor of the series works so well. By contrast, anytime South Park explores storylines involving older characters like Randy Marsh, Gerald, Sheila, Mr. Garrison, and others, the results often flounder and feel far less satisfying. Therefore, it's no stretch to posit that the best characters never age in South Park because the entire point of the series is to underscore Eric, Stan, Kyle, and Kenny's arrested development.

When South Park launched in 1997, cartoons featuring adults acting absurdly foolish, a la The Simpsons, were nothing new. Far more entertaining, irreverent, and refreshing was to deliberately create a foursome of awkward adolescents navigating adult arenas like politics, religion, sports, and pop culture. The point is that the main characters need to remain the same age for the comedic premise of the show to continue to pay humorous dividends 25 years after the landmark adult animated series premiered. If the characters changed ages on the show, Eric, Stan, Kyle, and Kenny would likely resonate far less in the cultural zeitgeist.

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How Old Are South Park's Main Characters? (2024)
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