The Social Security Administration recently released the U.S. baby name data for 2010. Here are the top twenty girl names of 2010 (and where they ranked in 2009, for comparison).

1. Isabella (was 1st)
2. Sophia (was 4th)
3. Emma (was 2nd)
4. Olivia (was 3rd)
5. Ava (was 5th)
6. Emily (was 6th)
7. Abigail (was 8th)
8. Madison (was 7th)
9. Chloe (was 9th)
10. Mia (was 10th)
11. Addison (was 12th)
12. Elizabeth (was 11th)
13. Ella (was 14th)
14. Natalie (was 16th)
15. Samantha (was 15th)
16. Alexis (was 13th)
17. Lily (was 18th)
18. Grace (was 17th)
19. Hailey (was 25th)
20. Alyssa (was 19th)

Hailey is new to the top 20 since 2009. The name Hailey replaced -- the name that fell out of the top 20 -- was Ashley (was 20th, now 27th).

Girl names that became more popular between 2009 and 2010 include:

• Maci, up from 655th to 232nd
• Giuliana, up from 705th to 376th
• Tiana, up from 604th to 334th
• Quinn, up from 487th to 253rd
• Adalynn, up from 667th to 445th
• Kinley, up from 452nd to 231st
• Gia, up from 593rd to 390th
• Scarlet, up from 607th to 413th
• Kenley, up from 659th to 500th
• Aria, up from 511th to 356th
• Charlie, up from 616th to 462nd
• Annabella, up from 460th to 310th
• Hadley, up from 363rd to 216th
• Elisa, up from 636th to 495th
• Adelaide, up from 568th to 434th
• Yaretzi, up from 480th to 355th
• Danna, up from 390th to 266th
• Kinsley, up from 428th to 307th
• Finley, up from 525th to 408th
• Adalyn, up from 373rd to 256th

A lot of these were influenced by popular culture. Tiana is the name of a Disney princess, for instance, and Maci is one of the teen moms on the reality show Teen Mom.

Girl names that became less popular between 2009 and 2010 include Analia, Caylee, Rihanna, Jadyn, Cara, Diamond, Nathalie, Meredith, Marlee, Lizbeth, Malia, Yasmin, Kimora, Angie, Fernanda, Marley, Sasha, Ciara, Kyra and Kiera.

10,000 Most Popular Baby Girl Names Want more than the top 100 or top 1,000 baby girl names? Here's a complete list of the 10,000 most popular baby girl names in the nation! Click to learn more.