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]

Delilah Keenan
Lexi Windham
Vanessa Cowart
Claire Flood
Adrianna March
Karina Mena
Angel Martin
Morgan Paris
Miriam Gunderson
Jamie Cheng
Briana Swenson
Trinity Guerrero
Jazmin Scales
Amelia Thomason
Katelynn Nichols
Sydney Heller
Sophia Dahl
Mikayla Coats
Audrey Mclendon
Maria Hay
Jordyn Joseph
Lillian Rocha
Cynthia Flanagan
Alexis Colvin
Arianna Bowling
Julia Leal
Natalia Mcmanus
Malia Monk
Paola Crenshaw
Breanna Finley
Savannah Rock
Ava Griffiths
Caitlyn Brennan
Brooke Larue
Daniela Deaton
Guadalupe Harding
Rylee Wolford
Desiree Payton
Payton Keen
Kylee Blocker
Jennifer Oakes
Cora Reeves
Tatiana Skaggs
Kelsey Parish
Sadie Killian
Ella Mead
Shayla Gaffney
Heidi Hinton
Haylee Connell
Aubree Drake