Isiah vs Marcos
Marcos leads today (#516 vs #1,477), though both are past their peak.
145 years, head to head
Babies named Isiah and Marcos per year in U.S. Social Security records, 1880–2025.
Head to head
2025 rank
#1,477
#516
Babies named in 2025
120
579
Peak year
2001
2001
Trend
Declining since 2000
Declining since 2000
Usually for
Boys
Boys
Lifetime births
24,710
53,580
Try another matchup
Isiah against names whose popularity has moved like its own.