Jeremiah Duggar first entered the public eye as one of the nineteen children featured on the TLC reality series 19 Kids and Counting, a program that chronicled the deeply religious and tightly structured household of parents Jim Bob Duggar and Michelle Duggar in Tontitown, Arkansas. Born into a family where all names begin with the letter "J," Jeremiah grew up in an environment governed by strict Independent Baptist values, including homeschooling, limited access to mainstream entertainment, and an emphasis on faith, modesty, and courtship rather than dating. His childhood and adolescence were documented on the show, which followed the family from its earlier iterations as 17 Kids and Counting and 18 Kids and Counting before settling on the more familiar title in 2008. During this period, viewers watched Jeremiah and his twin brother, Jedidiah, navigate the unique challenges of growing up in a household of nearly two dozen siblings, with the family's adherence to the teachings of the Institute in Basic Life Principles shaping much of their daily routine.

The series became TLC's most popular program, drawing millions of viewers each week until its abrupt cancellation in May 2015 following revelations about eldest brother Josh Duggar's past misconduct. The show concluded after seven seasons, and the family subsequently transitioned to the spin-off Counting On, which premiered later that year and continued to document the lives of the adult Duggar children as they married and started families of their own. Jeremiah appeared in this follow-up series as well, though the program itself was ultimately cancelled in 2021 following Josh's arrest on child pornography charges. Throughout his time on both shows, Jeremiah was often portrayed as one of the more easygoing and athletic members of the family, frequently participating in outdoor activities and home improvement projects alongside his siblings.

Beyond his television appearances, Jeremiah's life has intersected with several significant family milestones that played out in the public sphere. He served as a groomsman in the weddings of several of his older siblings, including the high-profile nuptials of Jessa Duggar and Jill Duggar, which were broadcast as special episodes. In 2022, Jeremiah married Hannah Wissmann, a fellow homeschooling graduate from a similarly large family, and the couple welcomed their first child in 2023. His personal life has remained largely outside the tabloid controversies that have dogged other members of his family, with Jeremiah maintaining a relatively low profile on social media compared to some of his sisters. He continues to reside in Arkansas, working in real estate and property management, areas in which his father has long been involved. While the family's reality television era has come to a close, Jeremiah Duggar remains a recognizable figure within the broader Duggar franchise, representing a younger generation that has had to reconcile their public upbringing with their private adult lives.