( CNN ) -- For the 13th year in a row , Jacob was the most popular name in 2011 for newborn boys in the United States , according to rankings released by the U.S. Social Security Administration . Among girls , Sophia rose from No . 2 in 2010 to claim the No . 1 spot from Isabella , pushing her down to No . 2 in 2011 , according to the annual top 10 list . Mason cracked the the top 10 for the first time in 2011 , bolstering the adage that the list reflects common names in pop culture . Mason , which held the No . 12 spot in 2010 , is the name TV personality Kourtney Kardashian gave her son in 2009 . Chloe -- the name of Kardashian 's younger sister , except spelled with a `` K '' -- has been in the top 10 since 2008 . The name dropped from 9 in 2010 to 10 in 2011 . Jayden , the name of Britney Spears ' son , held on to the No . 4 spot for the second year in a row since making the top 10 in 2009 . Time will tell whether Maxwell , the unconventional name that Jessica Simpson gave her daughter , will climb the list from its current spot at No . 134 as a boy 's name . Names that buck convention : Advice for Jessica Simpson 's daughter . And , of course , the names Bella ( or Isabella ) and Jacob , characters from the popular `` Twilight '' series , held their ground . Isabella entered the top 10 in 2004 at No . 7 . Jacob entered the list at No . 9 in 1993 and began his winning streak in 1999 . Otherwise , the list contained most of the usual suspects , including William , Noah , Ethan , Emma , Olivia , Madison and Ava . The names to make the biggest gains from 2010 to 2011 were Brantley , perhaps popularized by a country singer , and Briella , as in the `` Jerseylicious '' star , jumping 416 and 394 spots , respectively . That makes his name the 320th most popular and hers the 497th . In America : What does your name say about you ? Over the past 100 years , the names Michael and Mary have held the top spot most often : 44 times in both cases . The data come from Social Security card applications for births in the United States . The complete list : . 1 . Jacob and Sophia . 2 . Mason and Isabella . 3 . William and Emma . 4 . Jayden and Olivia . 5 . Noah and Ava . 6 . Michael and Emily . 7 . Ethan and Abigail . 8 . Alexander and Madison . 9 . Aiden and Mia . 10 . Daniel and Chloe . Find out more at the U.S. Social Security Administration . Did your name or your child 's name make the list ? Share your story in the comments or tweet your thoughts to @ CNNWriters .
Sophia steals No . 1 spot from Isabella ; Jacob earns No . 1 spot for 13th consecutive year . Names like Isabella , Mason bolster adage that list reflects common names in pop culture . Brantley and Briella make the biggest gains from 2010 to 2011 . Data come from Social Security card applications for births in the United States in 2011 .