Julia Koch’s net worth over time
Only dates with a published estimate are shown. Nothing is filled in between. Tap or hover a bar to see the source.
See the numbers as a table
| Date | Estimate | Source |
| 2020 | $38.2 billion | Forbes World's Billionaires List 2020 |
| 2021 | $46.4 billion | Forbes World's Billionaires List 2021 |
| 2022 | $60 billion | Forbes World's Billionaires List 2022 |
| 2023 | $59 billion | Forbes World's Billionaires List 2023 |
| 2024 | $64.3 billion | Forbes World's Billionaires List 2024 |
| 2025 | $74.2 billion | Forbes World's Billionaires List 2025 |
| 2026 | $81.2 billion | Forbes World's Billionaires List 2026 |
| Oct 2026 | $84.6 billion | Forbes Real-Time Billionaires · Forbes real-time estimate |
Where the money comes from
These are the main sources of wealth named in the reporting we cite. No published source breaks the total into exact amounts, so we do not show percentages.
Julia Koch’s fortune in real-life terms
Based on the Forbes Real-Time Billionaires estimate above. Median full-time U.S. pay is $65,416 a year ($1,258 a week, BLS, Q2 2026), before taxes. Typical (median) U.S. family net worth is $216,100 (Federal Reserve, 2025 Survey of Consumer Finances).
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Julia Koch has an estimated net worth of $84.6 billion, according to Forbes Real-Time Billionaires, Julia Koch profile (figures as of October 20, 2026). That is up from $38.2 billion in 2020.
Julia Koch is an American businesswoman and philanthropist tied to Koch, Inc., a diversified company. She serves on the board of Koch, Inc. and also sits on the boards of Memorial Sloan Kettering Cancer Center and The Metropolitan Museum of Art. Before her life in big business, she moved to New York City in the 1980s and worked as an assistant to fashion designer Adolfo, helping with fittings for clients including Nancy Reagan.
Her wealth comes from a 42% stake in Koch, Inc. that she inherited with her family after David Koch died in 2019. That made her one of the richest women in the United States. In recent years, she has also been part of major sports investments. In 2024, the family bought 15% of BSE Global, and in 2025 they acquired 10% of the New York Giants in a deal that valued the team at more than $10 billion.
How Julia Koch makes money
Most of Julia Koch’s wealth is connected to Koch, Inc., the company she inherited a major stake in after David Koch’s death in 2019. Her family’s holding is 42%, giving them a large interest in one of the biggest privately held businesses in the United States. She is not listed by Forbes as self-made. Instead, her fortune is rooted in ownership, and she remains involved through her seat on the company’s board.
Her career path started far from industrial wealth. After moving to New York City in the 1980s, she worked for fashion designer Adolfo and handled fittings for well-known clients, including Nancy Reagan. More recently, her money has also gone into sports ownership. In 2024, she and her family paid nearly $700 million for 15% of BSE Global, which owns the Brooklyn Nets and New York Liberty. In 2025, the family added 10% of the New York Giants.
Forbes net worth and recent moves
Forbes has tracked a strong rise in Julia Koch’s fortune since she first appeared among the world’s richest people after the 2019 inheritance. Forbes estimated her net worth at $38.2 billion in 2020, then $46.4 billion in 2021 and $60 billion in 2022. It later put her at $59 billion in 2023, showing that the value did not move in only one direction from year to year.
The estimate climbed again after that. Forbes valued her fortune at $64.3 billion in 2024, then $74.2 billion in 2025 and $81.2 billion in 2026. Forbes' real-time billionaires tracker listed her at $84.6 billion in October 2026. Her wealth is still mainly tied to Koch, Inc., while the family’s sports deals added new high-profile holdings in the Brooklyn Nets, New York Liberty, and New York Giants.
Career and money timeline
- 1984
She moved to New York City and worked as Adolfo’s assistant.
- 1991
She met David Koch through a blind date and later began dating him.
- 1996
She and David Koch got married.
- 2019
She inherited a 42% stake in Koch, Inc. with her family.
- 2024
The family bought 15% of BSE Global.
- 2025
They acquired 10% of the New York Giants.
Julia Koch net worth FAQ
What is Julia Koch's net worth?
Julia Koch's net worth is an estimated $84.6 billion, according to Forbes Real-Time Billionaires, Julia Koch profile (October 20, 2026). It is an estimate, not an official figure.
How did Julia Koch get so rich?
The main sources named in the reporting we cite are: Koch, Inc..
Is Julia Koch a billionaire?
Yes. Forbes Real-Time Billionaires estimates Julia Koch is worth $84.6 billion.
How has Julia Koch's net worth changed?
The earliest published estimate we track is $38.2 billion (2020, Forbes World's Billionaires List 2020). The latest is $84.6 billion (October 20, 2026).
What company is Julia Koch’s fortune tied to?
Her wealth is mainly tied to Koch, Inc. She inherited a 42% stake in the company with her family.
What is Julia Koch’s latest Forbes net worth estimate?
Forbes' real-time billionaires tracker listed her at $84.6 billion in October 2026.
Sources
- Forbes Real-Time Billionaires, Julia Koch profile (October 20, 2026)
- Forbes World's Billionaires List 2020, Julia Koch profile (April 8, 2020)
- Forbes World's Billionaires List 2021, Julia Koch profile (April 6, 2021)
- Forbes World's Billionaires List 2022, Julia Koch profile (April 5, 2022)
- Forbes World's Billionaires List 2023, Julia Koch profile (April 4, 2023)
- Forbes World's Billionaires List 2024, Julia Koch profile (April 2, 2024)
- Forbes World's Billionaires List 2025, Julia Koch profile (April 2025)
- Forbes World's Billionaires List 2026, Julia Koch profile (March 10, 2026)
- U.S. Bureau of Labor Statistics, Usual Weekly Earnings (Q2 2026) (July 2026)
- Federal Reserve, 2025 Survey of Consumer Finances (median family net worth, Table 4) (October 2026)
- Background facts: Wikipedia, Julia Koch (accessed October 20, 2026). Used for career facts only, never for figures.
Photo: David Koch Foundation, CC BY-SA 4.0, via Wikimedia Commons.
Every number on this page is an estimate published by the source named next to it. We never fill in years with our own guesses. How we handle estimates.