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Duncan
21,230 recorded births · active 1880–2025
Living-age distribution
The median living Duncan is 28. If you meet a Duncan, there's about a 70% chance they're between 12 and 62 years old.
Popularity arc
● Comeback KidPopular, faded for decades, then surged back.
Peak Duncan: 1997. Down 63% from peak.
Name neighbors
People named Duncan have popularity-curve siblings named:
Geographic fingerprint
Duncans are 1.1x more common in the West than the national average.