Richest billionaires in Illinois

Stacker compiled the richest billionaires in Illinois using data from Forbes. Net worth is as of June 18, 2026.

The first billionaire is generally considered to be John D. Rockefeller in 1916, though some argue it was Henry Ford in 1925. Fast-forward over 100 years and there are now around 3,000 billionaires around the world. Read on to see which billionaires live in your area and the richest across the country.

Richest billionaires in Illinois

#20. Nancy Mills Barnett
- Net worth: $4.1 billion
- Source: Medical supplies
- Industry: Healthcare
- Lives in: Highland Park, Illinois

#19. J.B. Pritzker
- Net worth: $4.3 billion
- Source: Hotels, investments
- Industry: Finance & Investments
- Lives in: Springfield, Illinois

#18. Byron Trott
- Net worth: $4.3 billion
- Source: Investments
- Industry: Finance & Investments
- Lives in: Winnetka, Illinois

#17. Wendy Abrams
- Net worth: $4.4 billion
- Source: Medical supplies
- Industry: Healthcare
- Lives in: Libertyville, Illinois

#16. Joe Mansueto
- Net worth: $4.4 billion
- Source: Investment research
- Industry: Finance & Investments
- Lives in: Chicago, Illinois

#15. Joseph Grendys
- Net worth: $4.8 billion
- Source: Poultry processing
- Industry: Food & Beverage
- Lives in: Chicago, Illinois

#14. Eric Lefkofsky
- Net worth: $4.9 billion
- Source: Groupon, investments
- Industry: Technology
- Lives in: Glencoe, Illinois

#13. Penny Pritzker
- Net worth: $4.9 billion
- Source: Hotels, investments
- Industry: Finance & Investments
- Lives in: Chicago, Illinois

#12. Andy Mills
- Net worth: $5.2 billion
- Source: Medical supplies
- Industry: Healthcare
- Lives in: Highland Park, Illinois

#11. Justin Ishbia
- Net worth: $5.3 billion
- Source: Private equity
- Industry: Finance & Investments
- Lives in: Chicago, Illinois

#10. Steve Lavin & family
- Net worth: $6.3 billion
- Source: Meat processing
- Industry: Food & Beverage
- Lives in: Chicago, Illinois

#9. Elizabeth Uihlein
- Net worth: $7.0 billion
- Source: Packaging materials
- Industry: Manufacturing
- Lives in: Lake Forest, Illinois

#8. Richard Uihlein
- Net worth: $7.0 billion
- Source: Packaging materials
- Industry: Manufacturing
- Lives in: Lake Forest, Illinois

#7. Mark Walter
- Net worth: $7.3 billion
- Source: Finance, asset management
- Industry: Finance & Investments
- Lives in: Chicago, Illinois

#6. Patrick Ryan
- Net worth: $7.3 billion
- Source: Insurance
- Industry: Finance & Investments
- Lives in: Winnetka, Illinois

#5. Ty Warner
- Net worth: $7.9 billion
- Source: Plush toys, real estate
- Industry: Real Estate
- Lives in: Oak Brook, Illinois

#4. Thomas Pritzker
- Net worth: $8.3 billion
- Source: Hotels, investments
- Industry: Finance & Investments
- Lives in: Chicago, Illinois

#3. Neil Bluhm
- Net worth: $9.3 billion
- Source: Real estate
- Industry: Real Estate
- Lives in: Chicago, Illinois

#2. Charlie Mills
- Net worth: $10.5 billion
- Source: Medical supplies
- Industry: Healthcare
- Lives in: Winnetka, Illinois

#1. Lukas Walton
- Net worth: $46.0 billion
- Source: Walmart
- Industry: Fashion & Retail
- Lives in: Chicago, Illinois

Richest billionaires in the U.S.

#10. Rob Walton & family
- Net worth: $136.5 billion
- Source: Walmart
- Industry: Fashion & Retail
- Lives in: Bentonville, Arkansas

#9. Warren Buffett
- Net worth: $144.9 billion
- Source: Berkshire Hathaway
- Industry: Finance & Investments
- Lives in: Omaha, Nebraska

#8. Jensen Huang
- Net worth: $179.5 billion
- Source: Semiconductors
- Industry: Technology
- Lives in: Los Altos, California

#7. Mark Zuckerberg
- Net worth: $196.1 billion
- Source: Facebook
- Industry: Technology
- Lives in: Palo Alto, California

#6. Larry Ellison
- Net worth: $227.9 billion
- Source: Oracle
- Industry: Technology
- Lives in: Manalapan, Florida

#5. Michael Dell
- Net worth: $239.1 billion
- Source: Dell Technologies
- Industry: Technology
- Lives in: Austin, Texas

#4. Jeff Bezos
- Net worth: $249.2 billion
- Source: Amazon
- Industry: Technology
- Lives in: Miami, Florida

#3. Sergey Brin
- Net worth: $272.7 billion
- Source: Google
- Industry: Technology
- Lives in: Los Altos, California

#2. Larry Page
- Net worth: $295.6 billion
- Source: Google
- Industry: Technology
- Lives in: Palo Alto, California

#1. Elon Musk
- Net worth: $1,201.1 billion
- Source: Tesla, SpaceX
- Industry: Technology
- Lives in: Austin, Texas