Justin Samuel Duggar was born on November 15, 2002, to Jim Bob Duggar and Michelle Ruark. He was the couple's fourteenth child, and they went on to have five more children after him.
Justin has been homeschooled his entire life.
Like most children, Justin has chores, which the family calls "jurisdictions". As of 2011, Justin's jurisdiction was cleaning the playroom.
By the time Justin was born, his parents had implemented a buddy system, where each older child was paired with a younger child to take care of. Typical tasks for an older buddy included dressing, bathing, and feeding their younger buddies. By 2009, the family had switched from individual buddies to buddy teams, with each team being led by one of the oldest four daughters. Justin was on a buddy team with older siblings Jessa and Jeremiah and younger sister Jordyn.
Justin is being raised as an active participant of Bill Gothard's Institute for Basic Life Principles.
When Justin was one year old, the first of his family's television specials, 14 Children and Pregnant Again!, aired on Discovery Health Channel. The special was followed by four more special programs about his family's life before the family became the subject of their own reality show, 17 Kids and Counting, when Justin was six years old.
In 2006, as featured on one of the TV specials, Justin and his family moved into a new home in Springdale, AR. In this house, Justin was given a dormitory-style room with his brothers. Justin lived in this house until his marriage.
Thanks to the reality show, Justin was able to take a number of vacations as a child. Notable vacation locations include Disneyland, New York City, Niagara Falls, Scotland, Ireland, London, Israel, China, and Japan.
Justin and Claire announced that they were engaged on November 16, 2020, one day after his 18th birthday. On November 5, 2021, they shared on Instagram that it was the 1 year anniversary of their engagement that day.
- ring bearer: his brother Joshua Duggar's wedding to Anna Keller (9/26/08)
- ring bearer: family friend Priscilla Keller's wedding to David Waller (2/4/12)
- groomsman: his brother Joseph Duggar's wedding to Kendra Caldwell (9/8/17)
- groomsman: his brother Jedidiah Duggar's wedding to Katelyn Nakatsu (4/3/21)