James Duff

James Duff (#949)

Global Rank #949

Country Rank #352

Country United States

James Duff is listed among the world billionaires tracked by Iconic Billionaires.

$ 5 B
Tires, diversified
United States
M
65 Years

Snapshot

Quick Facts

Global Rank #949

Country Rank #352

Net Worth $4.5B

Previous Worth $4.5B

Worth Change +$0.0B

Country United States

Industry Tires, diversified

Age 65 Years

Gender M

Worth As Of May 4, 2026

Residence Hattiesburg, Mississippi

Citizenship United States

World Billionaires List United States Billionaires Tires, diversified

Profile Data

Personal Stats

Age 65

Source Of Wealth Tires, diversified, Self Made

Self Made Score 7

Philanthropy Score 1

Residence Hattiesburg, Mississippi

Citizenship United States

Marital Status Married

Children 2

Net Worth Change +$0.0B +0.0% from previous worth

Previous Net Worth $4.5B

Current Net Worth $4.5B

Worth as of May 4, 2026

About Me

Brothers James and Thomas Duff cofounded and co-own Duff Capital Investors, a holding company with total revenue of $6 billion from more than 20 businesses. Their father founded the family's tire business in 1973 and sold it in 1998 to Tire Distribution Systems. The Duff brothers bought the company back in 2003 and since then have turned it into Southern Tire Mart, now the largest truck tire dealer and retread manufacturer in the U.S. Southern Tire Mart now sells over 4 million new tires and 2.5 million truck tire retreads each year, and has a partnership with Pilot Flying J to open locations at their truck stops. He and his brother are the only billionaires in Mississippi.

Achievements

Forbes List Highlights

A snapshot of the list placements and rankings connected to James Duff.

#954

Billionaires (2026)

#362

Forbes 400 (2025)

Ranked

The Richest Person In Every State (2025)

Insights

Did You Know?

James and his wife Sherry have two daughters; they are members of the Church of Jesus Christ of Latter Day Saints.

Three men were arrested in November 2016 as part of what the Mississippi Bureau of Investigation described as a murder plot to kill James' brother, Tom Duff.

Wealth Growth

Net Worth Growth Over Time

Tracking James Duff's net worth journey over the years, highlighting key growth phases and financial milestones.

Worth Trend Net Worth Growth

Period Change Worth Movement

Current Net Worth: $4.5B (May 4, 2026)