Every year the Social Security Administration (SSA) does an audit of the birth certificates for baby name popularity. They also calculate the top twin names for that year as well. Here is the data for 2011, released in 2012.
- Madison, Mason
- Olivia, Owen
- Jayda, Jayden
- Emma, Ethan
- Isabella, Isaiah
- Addison, Aiden
- Emily, Ethan
- Aiden, Ava
- Ella, Ethan
- Jada, Jaden
- Taylor, Tyler
- Abigail, Andrew
- Landon, London
- Mason, Morgan
- Oliver, Olivia
- Zachary, Zoey
- Alexander, Isabella
- Ethan, Olivia
- Madison, Michael
- Abigail, Benjamin
- Alexander, Sophia
- Emily, Matthew
- Emma, John
- Mackenzie, Mason
- Michael, Michelle
- Adrian, Adriana
- Charlotte, Henry
- Elizabeth, William
- Isaac, Isabella
- Jayden, Jayla
- Samuel, Sophia
- Addison, Jackson
- Andrew, Emma
- Ava, Jackson
- Blake, Brooklyn
- Caleb, Chloe
- Chloe, Colton
- Chloe, Connor
- Emma, Jack
- Emma, Jacob
- Isabella, Jacob
- Jada, Jordan
- Natalie, Nathan
- Robert, Sophia
- Trinity, Tristan
- Zane, Zoey
- Abigail, Alexander
- Abigail, Jacob
- Abigail, Zachary
- Addison, Austin
