Sidney vs Demetrius
Demetrius leads today (#1,227 vs #1,323), though both are past their peak.
145 years, head to head
Babies named Sidney and Demetrius per year in U.S. Social Security records, 1880–2025.
Head to head
2025 rank
#1,323
#1,227
Babies named in 2025
146
164
Peak year
1912
1991
Trend
Declining since 1994
Declining since 1992
Usually for
Girls & boys
Boys
Lifetime births
84,202
36,064
Try another matchup
Sidney against names whose popularity has moved like its own.