Sumner is a distinctive girls' name in United States, ranking #16616 in 2012 with 6 recorded births. The name reached its all-time peak in 1997 with 13 births ranking #7232. Since 1996, the popularity has decreased by 25.0%. In 2012, approximately 1 in every 293,457 girls born was named Sumner. RISING Recent data shows the name is currently rising.