[13] Johnson is married to Andrew East, a professional football long snapper who played for the Vanderbilt Commodores in college and the Washington Commanders (then the Redskins) in 2018.

In February 2022, Johnson and her husband joined the ownership group of Angel City FC of the National Women's Soccer League.

[24] When she was 12, Johnson competed in the Developmental Program- (U.S. Level 10 National Championships, finishing fourth in the all-around, first on beam, and second on floor.

"[26] Karolyi felt the action was audacious, commenting, "Wow, this coach is pretty confident",[10] but she soon invited Johnson to national team training camps.

[28] Johnson became a senior in 2007 and continued to show new skills, including a double-twisting double layout dismount off the uneven bars.

Johnson also competed in the 2007 Pan American Games, winning four gold medals (team, all-around, beam and bars) and a silver on floor.

[30] Johnson represented the U.S. at the 2007 World Artistic Gymnastics Championships along with Nastia Liukin, Shayla Worley, Alicia Sacramone, Ivana Hong, and Samantha Peszek.

[33] During event finals, Johnson first competed on the balance beam, where she fell on her standing full and on her switch side leap, scoring a 14.475 and finishing last.

[40] At the 2008 Summer Olympics, Johnson competed in all four events during the team competition,[41] in which the United States won the silver medal.

[43] Johnson's teammate and roommate at the Olympic Village,[44] Nastia Liukin, won the gold medal, receiving a score of 63.325.

Although, she had expected to return to the "ranch" later in her comeback, based on the demonstrated progress in her video, Marta Karolyi requested that she appear sooner.

[55] In February 2011, Johnson became an official member of the USA Senior National team once again which allowed her to compete in international competitions.

[58] On June 3, 2012, Johnson ended her comeback for the 2012 Olympic team and retired because of continuing problems with her left knee.

[61] Johnson was also on the top of most appealing athletes on E-score Celebrity metric in 2010,[62] and she was ranked seventh of America's Favorite Female Sports Stars on Harris Interactive in 2010.

[66] The annual award honors the USA athlete who best represents "the qualities of leadership, character, sportsmanship, and the ideals of amateurism.

[68] Johnson was the winner of the 2008 Teen Choice Award for Best Female Athlete, although she was not able to accept the honor in person because of Olympic training commitments.

The prize is given in recognition of athletes who demonstrate remarkable elegance in the course of an international competition at world level; the decision was unanimous.

In addition to the trophy, designed by the Swiss artist Piero Travaglini, recipients also receive a wristwatch from the Longines Evidenza collection and a check for $5,000.

[79] In April 2009, she appeared in the music video "Do You Love Me" by Ballas Hough Band wearing one of her Dancing with the Stars costumes.

During the finale, Len Goodman called Johnson "The No-Stress Express", stating that every piece that was thrown at her, she pulled off with little stress, and turned out a clean performance.

She correctly answered a question about the lyrics to "Grandma Got Run Over by a Reindeer", winning $50,000 for her chosen charity, Blank Children's Hospital.

Season 2 of Adventure Capitalists, airing on CNBC in October 2017, featured Johnson as one of four investors looking to invest in aspiring entrepreneur-contestants' outdoor inventions.

Johnson was sent home in an elimination round by champion Tori Deal in the fourth episode, which aired on December 12, 2017.

[109] In June 2012, Johnson released another book, Winning Balance: What I've Learned So Far about Love, Faith, and Living Your Dreams, about her experiences as an elite gymnast and post-Olympic life.

Other endorsements include:[115][116][117][118] Johnson has served as a spokesperson for the pharmaceutical company Sanofi-Aventis, advocating awareness of women's cancers through the "What You Do Matters" campaign.

In December 2008, she co-hosted a charity event with fellow Iowa native actor Ashton Kutcher to raise money to repair areas of her home state devastated by flooding.

According to court documents filed in Los Angeles, 34-year-old Robert O'Ryan was arrested while in possession of guns, duct tape, zip ties, and love letters to Johnson, who was 17 at the time.

O'Ryan left his home in Florida and traveled to California, believing that Johnson spoke to him through the television via ESP, stating that they would be together and have a child.

[125][126] He pleaded not guilty by reason of insanity, was convicted in 2010 on all counts, and was committed to Patton State Hospital for a maximum of five years.

[127] The trademarks of Johnson's gymnastics were her power, difficulty and consistency, though she was considered weaker on the uneven bars and lacked great flexibility.