WASHINGTON (AP) - Sophia is the new most popular baby name for girls, while Jacob is the top name for baby boys for the 13th straight year.

The Social Security Administration released the top 1,000 baby names of 2011 on Monday. Isabella, which had been the top girl name for two years, dropped to second place. Emma, Olivia and Ava rounded out the top five.

Mason jumped 10 spots to become the second most popular name for newborn boys last year, knocking Michael out of the top five for the first time in 63 years. Rounding out the top five boys' names: William, Jayden and Noah.

Michael came in sixth, its lowest ranking since 1948.

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