What are the top baby names of 2011 for both girls and boys? Read on to find out!

Sophia is the new top baby girl's name in the United States, according to the list of most popular names of 2011 released by the Social Security Administration.

Isabella, which was the number one name for the last two years, has moved down to the second-most popular name for girls.

As for boys, it's been the same name for THIRTEEN years in a row:  Jacob! But in second place it's a name that has moved way up the charts, and if looks like there are many Kardashian fans because it happens to be the name of Kourtney Kardashian's little boy, Mason is the new number-two boys name.

The girls name that made the biggest jump up the list was Briella. A possible reason is reality star Briella Calafiore from "Jerseylicious" and "Glam Fairy."

The biggest climber among boys names is Brantley. Social Security officials say it could be inspired by country singer Brantley Gilbert and University of Florida quarterback John Brantley.

So here is the list of the top girls names of 2011:

10. Chloe

9. Mia

8. Madison

7. Abigail

6. Emily

5. Ava

4. Olivia

3. Emma

2. Isabella

1. Sophia

And the list of top boys names for 2011:

10. Daniel

9. Aiden

8. Alexander

7. Ethan

6. Michael

5. Noah

4. Jayden

3. William

2. Mason

1. Jacob