Began playing golf at age 10.
Lists his father and mother among his heroes. Father is a chiropractor.
Huge Drake University and University of Iowa sports fan.
The gallery at BellSouth Classic at first TOUR victory included a group of about 10 men from Iowa who gave him financial support early in his career, buying a stake in Zach for $500 a share. Some were seeing him play as a pro for the first time. "It started out as a business, but it ended up as a business family," Johnson said of his relationship with them. "It's unbelievable having them here. They would buy a couple stock shares in me and just allow me to go out and not have to worry about the necessities of traveling week to week.".
When heavy rains caused flooding in the Midwest in the summer of 2008, stepped up to help. Served as the spokesman on a public service announcement and held a one-day golf event in Cedar Rapids, Iowa, that raised $350,000. Was instrumental, along with Jerry Kelly, in starting the PGA TOUR Flood Relief effort, which donated approximately $125,000 to the cause.
In July of 2010, announced formation of the Zach Johnson Foundation that will benefit children in need in the Greater Cedar Rapids area. The Foundation's premier event will be the Zach Johnson Foundation Classic, a tournament that will feature at least four PGA TOUR players as well as some of the game's future superstars. Inaugural event took place at Elmcrest CC in Cedar Rapids on Aug. 1, 2011.
Website is zachjohnsongolf.com.