Sumner is a distinctive girls' name in United States, ranking #8482 in 2000 with 12 recorded births. The name reached its all-time peak in 1997 with 13 births ranking #7232. Since 1996, the popularity has increased by 50.0%. In 2000, approximately 1 in every 151,331 girls born was named Sumner. RISING Recent data shows the name is currently rising.