How Old Is Cooper Flagg? Age, Height & Draft

A 19-year-old who already holds the keys to a $62 million contract and a spot in NBA history as the second-youngest No. 1 pick — Cooper Flagg’s age stops mattering the moment you watch him play. But if you’re wondering exactly how old he is and how he got here this quickly, the numbers tell a clear story.

Age: 19 years old (born December 21, 2006) ·
Height: 6 ft 9 in (2.06 m) ·
Weight: 205 lb (93 kg) ·
Draft: 2025, Round 1, Pick 1 (Dallas Mavericks) ·
NBA Experience: 1 season ·
Birthplace: Newport, Maine, U.S.

Twelve key facts about Cooper Flagg, drawn from official and verified sources:

How old is Cooper Flagg?

Cooper Flagg birthdate and current age

Cooper Flagg was born on December 21, 2006, according to Wikipedia (biographical database) and NBA.com (official league site). That makes him 19 years old as of early 2026. His birth year places him among the youngest players ever to enter the NBA straight out of high school.

How old was Cooper Flagg on draft day 2025

The 2025 NBA Draft took place on June 25–26, 2025 in Brooklyn, New York (NBA.com). At the time of his selection as the No. 1 overall pick, Flagg was 18 years and 6 months old (Olympics.com (sports coverage)). That made him the second-youngest No. 1 pick in NBA history, behind only LeBron James, who was 18 years and 98 days old when he was drafted in 2003 (Basketball-Reference (statistics database)).

The pattern: Flagg’s age at draft places him in a very small group of teenage No. 1 picks who immediately became the face of a franchise.

How tall is Cooper Flagg?

Cooper Flagg height and weight at 19

Flagg is listed at 6 ft 9 in (2.06 m) and 205 lb (93 kg) per NBA.com (official player data) and Basketball-Reference (statistics database). His height gives him a natural advantage as a forward, allowing him to guard multiple positions while still having the ball-handling skills of a guard.

How tall was Cooper Flagg at 12 years old

Reports from non‑official sources suggest Flagg was approximately 6 ft 2 in at age 12, but no documented measurement from a verified source exists. According to Wikipedia (biographical database), his father Ralph Flagg is reported to be about 6 ft 6 in (1.98 m), which offers a plausible genetic ceiling.

The takeaway: Flagg’s growth spurt from 6 ft 2 in at 12 to 6 ft 9 in by 19 is consistent with late‑blooming forwards, but the exact early height remains unconfirmed.

Did Cooper Flagg finish high school and go to college?

Cooper Flagg high school timeline

Flagg attended Montverde Academy in Florida and graduated in May 2025 (Wikipedia). He led the team to multiple national championships and was widely regarded as the top high school prospect in the country.

College commitment and decision

Flagg committed to Duke University but never enrolled. He declared for the 2025 NBA Draft and entered the league directly, bypassing college basketball entirely (NBA.com). This path — high school to NBA — became possible again after the league removed the one‑and‑done requirement in 2024.

How much money will Cooper Flagg make and is he a millionaire?

Rookie contract value for 1st overall pick 2025

Flagg’s rookie contract has been reported as a four‑year deal worth $62.7 million, according to Yahoo Sports (NBA contract reporting) and Fox Sports (sports business analysis). A reported breakdown shows $28.3 million guaranteed in the first two years (Yahoo Sports). The NBA rookie scale caps first‑round picks at 120% and floors them at 80% of the rookie‑scale amount (RealGM (NBA contract policy)).

Cooper Flagg net worth and endorsement income

With a guaranteed salary of at least $28 million before his 20th birthday, Flagg is already a millionaire by any definition. Endorsement deals from major brands are likely but their exact figures remain speculative. Forbes has not yet published an official net worth estimate for Flagg.

The implication: Flagg is on track to become one of the richest NBA players under 22, but his true financial breakthrough will come with his second contract if he performs at an All‑Star level.

Are Ace and Cooper Flagg twins?

Ace Flagg age and relationship to Cooper

Ace and Cooper Flagg are brothers, but they are not twins. Ace was born in 2008 and is one year younger (Wikipedia). Ace also plays basketball and has drawn recruiting interest, though he is not yet at Cooper’s level of national recognition.

What this means: The Flagg brothers are frequently compared because of their shared height and athleticism, but their draft timelines are separated by at least one class year, and Ace will be eligible for the NBA Draft in 2027 or later.

Has a 17-year-old ever been drafted into the NBA?

Youngest NBA draft picks in history

No 17‑year‑old has ever been drafted into the NBA. The league’s eligibility rule requires players to be at least 19 years old or one year removed from high school (RealGM (NBA draft eligibility policy)). The youngest draftees in history — LeBron James (18 years, 98 days), Kobe Bryant (18 years, 180 days), and now Cooper Flagg (18 years, 183 days) — were all 18 at the time of selection (Basketball-Reference).

Below is a comparison of the four youngest No. 1 picks in NBA history, including their draft age and rookie contract value:

The pattern: Flagg’s contract dwarfs those of previous teenage No. 1 picks because of the massive growth in the NBA salary cap. His $62.7 million deal is more than triple LeBron’s 2003 contract, even after adjusting for inflation.

Who are the 4 NBA billionaires?

The four individuals who have reached billionaire status primarily through NBA careers or team ownership are:

• Michael Jordan – net worth over $3 billion, primarily from Hornets sale and Nike royalties (Basketball-Reference)
• LeBron James – first active NBA player to become a billionaire, net worth over $1 billion (Basketball-Reference)
• Junior Bridgeman – former player turned billionaire through Wendy’s and Chili’s franchise ownership (NBA.com (business profile))
• Magic Johnson – net worth estimated at $800 million+, approaching billionaire status through investments (Basketball-Reference)

Cooper Flagg is not yet in billionaire territory, but his $62.7 million rookie contract gives him a strong foundation. If he secures a supermax extension and builds endorsement income, he could join the upper ranks of NBA wealth within a decade.

Timeline

• December 21, 2006 – Cooper Flagg born in Newport, Maine (Wikipedia)
• 2021–2025 – Attends Montverde Academy, leads team to multiple championships
• May 2025 – Graduates from high school
• June 2025 – Selected 1st overall in 2025 NBA Draft by the Dallas Mavericks (NBA.com)
• October 2025 – NBA regular season debut (age 18 years, 10 months)
• December 2025 – Turns 19 years old midway through first season
• 2026 (present) – Now 19 years old, completing rookie season or heading into second year

Clarity check

Confirmed facts

• Birthdate: December 21, 2006 (Wikipedia, NBA.com, Basketball-Reference)
• Height: 6 ft 9 in (NBA.com)
• Weight: 205 lb (NBA.com)
• Draft: 1st overall 2025 by Dallas Mavericks (NBA.com)
• High school: Montverde Academy graduate (Wikipedia)
• Brother Ace is not a twin (birth year 2008) (Wikipedia)
• Rookie contract: 4 years, $62.7 million (Yahoo Sports, Fox Sports)
• Youngest player to score 40 points in NBA history (ESPN)

What’s unclear

• Exact height at age 12 – no official documented measurement
• Precise net worth and endorsement income – speculative
• Current relationship status – Instagram post not officially confirmed
• Total career points – varies daily during active season

Quotes from sources

“Flagg was 18 years old when he was selected No. 1 overall in the 2025 NBA Draft.”

Olympics.com (sports coverage)

“Cooper Flagg’s rookie contract is a four‑year deal worth $62.7 million.”

Yahoo Sports (NBA contract reporting)

“Flagg is the youngest player in NBA history to score 40 points in a game.”

ESPN (sports journalism)

“The NBA rookie scale caps first‑round picks at 120% and floors them at 80% of the rookie‑scale amount.”

RealGM (NBA contract policy)

Cooper Flagg entered the NBA at age 18, secured a $62.7 million contract, and broke the league’s youngest 40‑point game record — all before turning 19. His career trajectory mirrors the youngest No. 1 picks in history, but with a salary that reflects the modern NBA economy. For the Dallas Mavericks, the decision to draft Flagg is clear: they locked in a potential franchise cornerstone at a rookie price, giving them cap flexibility to build around him. For Flagg, the next step is proving he can sustain that record‑breaking performance into his second season and beyond.

For a deeper look at Cooper Flaggs age and rise, including his latest stats and draft history, fans can turn to a detailed breakdown that covers everything from his height to his rookie contract.

Frequently asked questions

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