Carson wed her high school sweetheart, Carson McAllister, in the Salt Lake City area on New Year's Day, Peoplereported.
"Can't believe today is the day!!! Finally get to be with my love forever and all eternity," Carson captioned a black-and-white Instagram photo on Saturday of the soon-to-be newlyweds pressing noses and smiling. "Can't wait to share with all of you the details... Oh and happy New Years! #McAllisterWedding2016."
"I'm just excited to start our lives together," Carson, who wore a conservative gown designed by Rivini, told People.
Carson and McAllister, both 22, tied the knot during a small religious ceremony followed by a big dinner and reception at NOAH's Event Center in Lindon, UT. "Over 100" relatives reportedly attended the nuptials as well as Carson's fellow Dancing with the Stars pros Emma Slater, Lindsay Arnold, Brittany Cherry, and Jenna Johnson, who served as her bridesmaids.
A handful of Carson's former DWTS celebrity partners were also present -- including Season 21's Carlos PenaVega, Season 20's Chris Soules, and Season 19's Alfonso Ribeiro. A couple more familiar faces were invited to the wedding, such as pro Kym Johnson and Alexa PenaVega.
Carson just announced in October she had gotten engaged to McAllister after four years of dating. She said at the time her fiance is "perfect" and she felt like the "luckiest, happiest" girl in the world to become his wife.
"Yesterday was absolutely magical. Seriously the best two days of my life! The celebration was so much fun, and I couldn't have asked for better! More photos coming :)" Carson captioned an Instagram photo on Sunday of the married couple in their wedding attire.
"#Sealedforeternity to my sweetheart @carson.mcallister #slctemple," the pro dancer later shared a magical winter-white image of the pair standing in the snow in front of a castle.
Carson also revealed on social media she'll be spending her honeymoon with McAllister at Walt Disney World.
The perky blonde and her groom started dating during their senior year of high school, but McAllister told People he had a big crush on Carson even before then.
"She was my dream girl since seventh grade, but she didn't know I existed until senior year," McAllister admitted. "We became really close friends and kinda started dating. From the second I got to know her, I could tell she was the most loving and understanding girl I'd ever met."
After high school, Carson auditioned for So You Think You Can Dance in 2012 while McAllister traveled to Romania for a two-year Catholic mission trip. They sent emails and packages to one another to stay in touch, and their relationship endured "a lot of sacrifices."
After competing on the ninth season of SYTYCD, Carson joined Dancing with the Stars and McAllister enrolled in college to become a businessman in his father's line of work.
"We've been in this limbo where he's in Utah and I'm in LA and we haven't been able to create a life together," Carson told the magazine. "Now, we get to have a fresh start together. I'm excited. He's my best friend."
"She's my best friend," agreed McAllister. "I can't wait to spend forever with her."