Jackson married his high school sweetheart, Denise Jackson, on December 15, 1979.
They have three daughters: Mattie Denise Selecman (born June 19, 1990), Alexandra Jane "Ali" (born August 23, 1993), and Dani Grace (born August 28, 1997).
Although the couple separated for several months in 1998 due to the strains of Jackson's career as well as his infidelity, they have since reconciled.
Their story is referenced in several of Jackson's songs, including "She Likes It Too" and "Remember When," based on his memories, and the fond views of an everlasting love between his wife and him.
Denise and their daughters appear in the latter song's video.

Denise Jackson wrote a book that topped The New York Times Best Seller list about her life with Jackson, their relationship, their separation over his infidelity and recommitment to each other, and her commitment to Christianity.
The book, It's All About Him: Finding the Love of My Life, was published in 2007.
In May 2008 she released a Gift Book titled "The Road Home."
Jackson's nephew, Adam Wright, is also a country music singer-songwriter.
Adam and his wife, Shannon, perform together as a duo called The Wrights.
The Wrights co-wrote two songs and sang harmony vocals on Jackson's What I Do album.
Jackson is a cousin of former Major League Baseball player Brandon Moss.
In June 2009, Jackson listed his 135-acre (0.55 km²) estate just outside Franklin, Tennessee, for sale, asking $38 million.
The property sold in late May 2010 for $28 million, one of the highest prices ever for a home sale in the Nashville area.
In 2010, after Jackson moved his estate just outside Franklin, the singer then moved into a home in the same Nashville suburb.
The singer and his wife paid $3.675 million for the estate in June 2010, but less than a year later they listed the home for $3.995 million.

Jackson maintained a close friendship with fellow country singer, George Jones.
Jones has been mentioned in songs such as "Don't Rock the Jukebox" (Jones also appeared in the video which accompanied it) and "Murder on Music Row."
The song "Just Playin' Possum" is dedicated to Jones and talks of how Alan only wants to lie low and play possum, possum referring to George Jones.
Jones can also be seen in the video for "Good Time."
In 2008, Jones was a surprise guest at Jackson's "CMT Giants" ceremony, where he thanked Jackson for his friendship.
He's also close friends with George Strait, who sang "Murder on Music Row" with him.
Besides his associations with big stars, Alan also maintains his connections to his roots and old friends.
From his early days of playing the guitar with his old high school friend and fellow musician David "Bird" Burgess on the Burgess' family front porch, it was evident Alan was going to be Newnan's rising star.
While "Bird" Burgess has left the country music scene to pursue other avenues, the two have remained friends.
At George Jones' funeral service, on May 2, 2013, Jackson performed one of Jones' classics, "He Stopped Loving Her Today," at the close of the service at the Grand Ole Opry in Nashville.
An avid classic car collector, Jackson's collection includes an Amphicar, a 1968 Shelby GT 500 KR Convertible and a 1970 Chevelle SS 396, among others.
Jackson married his high school sweetheart, Denise Jackson, on December 15, 1979. They have three daughters: Mattie Denise Selecman (born June 19, 1990), Alexandra Jane "Ali" (born August 23, 1993), and Dani Grace (born August 28, 1997). Although the couple separated for several months in 1998 due to the strains of Jackson's career as well as his infidelity, they have since reconciled. Their story is referenced in several of Jackson's songs, including "She Likes It Too" and "Remember When," based on his memories, and the fond views of an everlasting love between his wife and him. Denise and their daughters appear in the latter song's video.
Denise Jackson wrote a book that topped The New York Times Best Seller list about her life with Jackson, their relationship, their separation over his infidelity and recommitment to each other, and her commitment to Christianity. The book, It's All About Him: Finding the Love of My Life, was published in 2007. In May 2008 she released a Gift Book titled "The Road Home." Jackson's nephew, Adam Wright, is also a country music singer-songwriter. Adam and his wife, Shannon, perform together as a duo called The Wrights. The Wrights co-wrote two songs and sang harmony vocals on Jackson's What I Do album. Jackson is a cousin of former Major League Baseball player Brandon Moss. In June 2009, Jackson listed his 135-acre (0.55 km²) estate just outside Franklin, Tennessee, for sale, asking $38 million. The property sold in late May 2010 for $28 million, one of the highest prices ever for a home sale in the Nashville area. In 2010, after Jackson moved his estate just outside Franklin, the singer then moved into a home in the same Nashville suburb. The singer and his wife paid $3.675 million for the estate in June 2010, but less than a year later they listed the home for $3.995 million.
Jackson maintained a close friendship with fellow country singer, George Jones. Jones has been mentioned in songs such as "Don't Rock the Jukebox" (Jones also appeared in the video which accompanied it) and "Murder on Music Row." The song "Just Playin' Possum" is dedicated to Jones and talks of how Alan only wants to lie low and play possum, possum referring to George Jones. Jones can also be seen in the video for "Good Time." In 2008, Jones was a surprise guest at Jackson's "CMT Giants" ceremony, where he thanked Jackson for his friendship. He's also close friends with George Strait, who sang "Murder on Music Row" with him. Besides his associations with big stars, Alan also maintains his connections to his roots and old friends. From his early days of playing the guitar with his old high school friend and fellow musician David "Bird" Burgess on the Burgess' family front porch, it was evident Alan was going to be Newnan's rising star. While "Bird" Burgess has left the country music scene to pursue other avenues, the two have remained friends. At George Jones' funeral service, on May 2, 2013, Jackson performed one of Jones' classics, "He Stopped Loving Her Today," at the close of the service at the Grand Ole Opry in Nashville. An avid classic car collector, Jackson's collection includes an Amphicar, a 1968 Shelby GT 500 KR Convertible and a 1970 Chevelle SS 396, among others.
Alan Jackson