Zig Ziglar was born in Coffee County, Alabama to parents John Silas Ziglar and Viola Ziglar. He was the tenth of twelve children.

In 1931, when Ziglar was five years old, his father accepted a management position at a Mississippi farm, and his family moved to Yazoo City, Mississippi, where he spent most of his early childhood. In 1932, his father died of a stroke, and his younger sister died two days later.

Ziglar served in the Navy during World War II (circa 1943 to 1945). He was in the Navy V-12 Navy College Training Program, attending the University of South Carolina.

On September 15, 1944, he met his wife, Jeane, at the YWCA in Jackson, Mississippi. He was 17 and she was 16. After dating for over two years she accepted his proposal and they were wed in late 1946.

Ziglar later worked as a salesman in a succession of companies, during which time his sales skills improved and his interest in motivational speaking grew.

In 1968, Ziglar became a vice president and training director for the Automotive Performance company, moving to Dallas, Texas.

In 1970, Ziglar went into the business of motivational speaking full-time. He often incorporates his strong Christian values into his enthusiastic speaking. Up until this final career change, he had gone by his given name, Hilary Ziglar. As more associates in the speaking and motivation business called him by the nickname, Zig, he decided to call himself Zig, and it stuck.

As of 2010, Ziglar still travels around taking part in motivational seminars despite a fall down a flight of stairs in 2007 that left him with short-term memory problems.