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Quizzes > Entertainment & Pop Culture > Television

How Old Are SpongeBob & Patrick? Take the Quiz!

Can you guess how old is Patrick in SpongeBob? Start the quiz now!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration of SpongeBob and Patrick on coral background with quiz headline testing knowledge of their ages

Use this quiz to figure out how old SpongeBob and Patrick are, using clues from the show. Play, spot age hints, and see where your memory holds up - have fun and learn a fact or two. Want more? Learn more about Patrick's age or try a SpongeBob vs. Patrick face-off .

How old is SpongeBob SquarePants?
20
19
18
21
According to the official series information, SpongeBob SquarePants is 20 years old. His age has been referenced in multiple episodes and promotional materials that align with his biography. This age is also supported by Nickelodeons character guide and the Wikipedia entry.
How old is Patrick Star?
20
21
18
19
Patrick Stars age is officially given as 20 years old in series materials and by the franchise. This fact appears in the shows character descriptions and is listed on fan and wiki sources that cite official guides. While exact mentions in episodes are rare, promotional materials confirm his age.
On which date does SpongeBob celebrate his birthday?
June 14
July 14
September 14
August 14
SpongeBobs canonical birthday is July 14 according to the series bible and official Nickelodeon sources. This date has been cited in multiple character profiles and promotional materials. Although the year varies in trivia sources, the day and month are consistently July 14.
On which date does Patrick Star celebrate his birthday?
August 17
September 17
July 17
October 17
Patrick Stars official birthday is August 17 as noted in franchise character guides and the SpongeBob Fandom wiki. This date appears in spin-off materials and is referenced by Nickelodeons character fact sheets. While fans sometimes debate the year, the day and month remain consistent.
According to canon, in what year was SpongeBob born?
1980
1988
1986
1984
The series bible and multiple official sources list SpongeBobs birth year as 1986. This date, paired with his July 14 birthday, establishes his age at 20 in the shows modern timeline. Fans and trivia references consistently use 1986 to calculate events in his life.
According to canon, in what year was Patrick born?
1984
1974
1980
1986
Patrick Stars birth year is widely cited as 1984 in official spin-off material and the franchises character guide. Combined with his August 17 birthday, this places him at 20 years old alongside SpongeBob. While not always mentioned in the episodes, the year 1984 is used in promotional timelines.
What age was SpongeBob when he moved into his pineapple house?
9
13
7
11
In the flashback episode Home Sweet Pineapple, SpongeBob says he was 9 years old when he first moved into his pineapple. This aligns with backstory details from Nickelodeon and the SpongeBob wiki. The scene clearly shows a 9-year-old SpongeBob unpacking in his new home.
How many years did SpongeBob attend Mrs. Puff's Boating School before he passed?
10
20
12
15
SpongeBob famously spent 20 years trying to pass Mrs. Puffs Boating School before finally earning his license. This long-running gag is referenced in several episodes and confirmed in character FAQs. The number 20 represents both his persistence and his age at passing time.
What is the age difference in days between SpongeBob and Patrick based on their birthdays?
45 days
34 days
21 days
60 days
SpongeBobs birthday is July 14 and Patricks is August 17. Counting from July 14 to August 17 inclusive gives an interval of 34 days. This calculation can be verified with any date duration tool. The difference of 34 days means they are very close in age.
In the 2009 special Truth or Square, the show celebrates SpongeBobs 20th birthday.
True
False
Truth or Square was produced in 2009 to mark the 10th anniversary of SpongeBob SquarePants, not the characters 20th birthday. The special features guest stars and flashbacks but focuses on the series milestone. References and the Wikipedia page confirm it celebrated the shows anniversary.
How old will SpongeBob be on July 14, 2026?
44
40
38
50
SpongeBob was born on July 14, 1986. By July 14, 2026, he will be exactly 40 years old. This straightforward calculation subtracts 1986 from 2026. Age calculators can confirm this result.
According to Nickelodeon, what zodiac sign is SpongeBob based on his canonical birth date?
Virgo
Gemini
Cancer
Leo
SpongeBobs birthday of July 14 places him under the zodiac sign Cancer. Cancer covers birthdays from June 21 to July 22. This astrological assignment is noted in various character analyses and fun fact guides.
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Study Outcomes

  1. Recall Character Ages -

    Recall the specific ages of SpongeBob and Patrick as presented in the quiz.

  2. Identify Patrick's Unique Trait -

    Identify the significance of Patrick's one tooth and how it relates to his age in SpongeBob.

  3. Compare Age Differences -

    Compare SpongeBob's age with Patrick's to understand the playful age gap between the two friends.

  4. Analyze Trivia Details -

    Analyze key trivia points about how old are the SpongeBob SquarePants characters beyond just their ages.

  5. Demonstrate Bikini Bottom Knowledge -

    Demonstrate your expertise by correctly answering questions about how old is SpongeBob and Patrick in this free trivia quiz.

Cheat Sheet

  1. SpongeBob's Canonical Age (20 years old) -

    According to the official "Truth or Square" special and Nickelodeon press materials, SpongeBob SquarePants is portrayed as a 20-year-old sea sponge. When wondering how old is SpongeBob and Patrick, remember that SpongeBob hits his third decade, which keeps his boundless optimism in full swing.

  2. Patrick's Official Age (41 years old) -

    In episodes like "Gary Takes a Bath" and on the SpongeBob SquarePants Wiki, Patrick Star is consistently described as 41 years old. To nail questions on how old is Patrick in SpongeBob, link his laid-back wisdom to this surprisingly mature age for a starfish.

  3. Floating Timeline in Cartoons -

    Animation theory from experts like Scott McCloud explains that characters often exist in a "floating timeline," meaning SpongeBob and Patrick never age despite decades on air. This principle helps quiz takers avoid overthinking date calculations - just recall their static ages whenever you see Bikini Bottom trivia.

  4. Real Sea Sponge Lifespan Facts -

    NOAA reports that many real sponges can live 10 - 20 years in the wild, which loosely inspired SpongeBob's 20-year-old status. Using this real-world anchor can help you remember how old are the SpongeBob SquarePants characters by comparing cartoon antics to genuine marine biology.

  5. Birthday Mnemonic Trick -

    SpongeBob's birthday is July 14 and Patrick's is February 17, so think "Bastille Day minus zero" and "Presidents' Day minus two." This playful mnemonic cements their ages in your mind, making it easy to answer any free trivia quiz on how old are SpongeBob and Patrick.

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