Castor vs Emma
Emma leads today (#3 vs #4,707), though both are past their peak.
145 years, head to head
Babies named Castor and Emma per year in U.S. Social Security records, 1880–2025.
Head to head
2025 rank
#4,707 (boys)
#3 (girls)
Babies named in 2025
21
12,754
Peak year
2016
1881
Trend
Declining since 2019
Declining since 2013
Usually for
Boys
Girls
Lifetime births
390
776,439