Grandfather Art Whisnant played basketball at South Carolina and was a three-time all-Atlantic Coast Conference selection in the early 1960s.

Younger brother and caddie Austin played guard for the Charleston Southern University basketball team.

Launched the Dustin Johnson Foundation in 2010 for the purpose of supporting various youth initiatives with the primary focus of promoting and supporting youth and college golf programs.

Formed the Dustin Johnson Golf School, located at TPC of Myrtle Beach, with former Coastal Carolina University coach Allen Terrell, who recruited Johnson in college and remains his coach.

A first-team All-American at Coastal Carolina University (Conway, S.C.) for two season (2006 and 2007) and a third-team All-American selection in 2005. Won seven times during his career.

Three-time Big South Conference Player of the Year.

All-time scoring leader at Coastal Carolina (72.26) and holds the lowest season scoring average in school history (70.40).

Won the 2007 Northeast Amateur and the 2007 Monroe Invitational.