This is the 13th year in a row that "Jacob" is the number one name for a baby boy, according to the Social Security Administration's annual list of the most popular American baby names.

This year, "Sophia" knocked Isabella off the top of the list, after a two-year reign. 

Top 10 boys' names:
1. Jacob
2. Mason
3. William
4. Jayden
5. Noah
6. Michael
7. Ethan
8. Alexander
9. Aiden
10. Daniel
Top 10 girls' names:
1. Sophia
2. Isabella
3. Emma
4. Olivia
5. Ava
6. Emily
7. Abigail
8. Madison
9. Mia
10. Chloe