Season one began airing on September 29, 2008 and finished airing on November 10, 2008. The season included ten regular episodes and one special episode: "And Baby Makes 18", which aired on December 22, 2008. The show was known as 17 Kids and Counting for the entirety of this season.

Season two began airing on January 25, 2009 and finished airing on June 23, 2009. The season included twenty regular episodes and one one special episode: "A Very Duggar Wedding", which aired on January 25, 2009. The show's name was changed to 18 Kids and Counting part-way through the season.

Season three began airing on June 30, 2009 and finished airing on December 22, 2009. The show featured 28 regular episodes.

Season four began airing on January 31, 2010, and finished airing on May 25, 2010. The season included nineteen regular episodes. The season's title was officially changed to 19 Kids and Counting at the beginning of this season.

Season five began airing on August 3, 2010, and finished airing on November 30, 2010. The season included twenty regular episodes and two special episodes: "Duggars Make a Movie", which aired on November 21, 2010, and "GrandDuggar First Birthday", which aired on December 7, 2010.

Season six began airing on January 24, 2011, and finished airing on March 28, 2011. The season included twelve regular episodes.

Season seven began airing on January 24, 2011, and finished airing on October 16, 2011. The season included fourteen regular episodes and one special episode: "First Grandson", which aired on June 19, 2011.

Season eight began airing on September 27, 2011, and finished airing on November 8, 2011. The season included ten regular episodes and three special episodes: "Duggars World Tour: Scotland & Ireland", which aired on November 13, 2011, "World Tour: Royal Duggars", which aired on November 20, 2011, and "World Tour: Duggars Last Stop", which aired on November 27, 2011.

Season nine began airing on February 14, 2012, and finished airing on March 27, 2012. The season contained nine regular episodes.

Season ten began airing on August 28, 2012, and finished airing on October 30, 2012. The season contained seventeen regular episodes.

Season eleven began airing on April 2, 2013, and finished airing on May 21, 2013. The season contained twelve regular episodes and three special episodes: "Duggars Do Asia: Tokyo, Japan", which aired on March 12, 2013, "Duggars Do Asia: Kyoto, Japan", which aired on March 19, 2013,", "Duggars Do Asia: Beijing, China", which aired on March 26, 2013 and "GrandDuggar Makes 3!", which aired on June 16, 2013.

Season twelve began airing on September 17, 2013, and finished airing on October 22, 2013. The season contained ten regular episodes and one special episode: "Josh & Anna: Our Story", which aired on October 22, 2013.

Season thirteen began airing on April 1, 2014, and finished airing on June 3, 2014. The season contained twelve regular episodes and two special episodes: "A Big Announcement" and " A Duggar Leaves Home" which aired on June 10, 2014.

Season fourteen began airing on September 2, 2014, and finished airing on November 25, 2014. The season contained sixteen regular episodes and two special episodes: “Jill’s Wedding”, which aired on October 28, 2014 and “Amy’s Nashville Dreams”, which aired on November 25, 2014.

Season fifteen began airing on February 17, 2015, and finished airing on May 19, 2015. It contained nineteen regular episodes and two special episodes: “Jessa’s Wedding” which aired on March 31, 2015 and “ Jill's Special Delivery" which aired on May 5, 2015. This was the last season before the show was cancelled, and later replaced by “Counting On”.