The popularity (frequency) distribution of given names typically follows a power law distribution.

Since about 1800 in England and Wales and in the U.S., the popularity distribution of given names has been shifting so that the most popular names are losing popularity. For example, in England and Wales, the most popular female and male names given to babies born in 1800 were Mary and John, with 24% of female babies and 22% of male babies receiving those names, respectively. In contrast, the corresponding statistics for in England and Wales in 1994 were Emily and James, with 3% and 4% of names, respectively. Not only have Mary and John gone out of favor in the English speaking world, also the overall distribution of names has changed significantly over the last 100 years for females, but not for males. This has led to an increasing amount of diversity for female names.

[From Wikipedia]

Joselyn Rowan
Isabel Barrera
Brielle Glass
Angel Streeter
Angela Coughlin
Amaya Redding
Jade High
Lillian Hillman
Ruth Prather
Natalia Hoyle
Josephine Carbone
Cynthia Falcon
Lauren Shoemaker
Catherine Harms
Bridget Cooley
Lydia Millard
Stephanie Gallegos
Faith Aguirre
Chloe Moser
Sydney Hunt
Leilani Lavoie
Alison McCollum
Allyson Bone
Fatima Stringer
Chloe Chadwick
Nadia Slaughter
Crystal Grossman
Kira Briscoe
Sophia Rosas
Elizabeth Ferris
Alicia Barnett
Rachel Watt
Hayden Blankenship
Amber Staley
Sydney Skaggs
Taylor Hager
Adrianna Pease
Caitlin Geiger
Bailey Cisneros
Gabriella Melton
Cheyenne Price
Samantha Lincoln
Kayden Goode
Malia May
Miranda Greenberg
Mariana Buford
Carmen Oakley
Peyton Garza
Lucia Erickson
Callie Sanford