Ian
258,479 recorded births · active 1912–2025
Compare Ian →Living-age distribution
The median living Ian is 24. If you meet a Ian, there's about a 70% chance they're between 9 and 42 years old.
Popularity arc
Peak Ian: 2005. Down 25% from peak.
Projected: the dashed 10-year forecast (Holt damped-trend exponential smoothing, fit to recent years), with a shaded 95% interval.
Gender balance
Ian is almost always given to male babies — 99.7% male.
Rarity
Ian ranks #313 out of 105,966 names ever recorded by the SSA.
Geographic fingerprint
Ians are 1.6x more common in the West than the national average.
Predictive modeling
Three statistical models, all fit to Ian's own SSA history plus the historical behavior of every other name in the dataset.
Peak popularity prediction
Ian's modeled peak was #103 in 2005 — its trend isn't projected to beat that.
Projects the trend forward, then converts share into rank using this year's popularity distribution.
This forecasts Ian's share of births by fitting a damped-trend model to its last 114 years of data and projecting 10 years forward with a widening uncertainty band. Each projected share is then translated into a rank by comparing it against 2025's actual name-popularity distribution — so the model implicitly assumes the overall shape of that distribution doesn't shift much over the forecast window. Its trend is projected to stay below its historic best over the next 10 years, so the model treats 2005 as its peak. Milestone probabilities come from how much of each year's uncertainty band clears that milestone's rank, combined across years as if they were independent — which slightly overstates the odds for names sitting right at a threshold, since a good year is usually followed by another good year rather than an independent coin flip.Name life-cycle stage
A rule-based classifier over recent growth, momentum, and peak proximity.
Ian's popularity has been easing lower recently, though not sharply enough to call it a steep decline.
Popularity survival model
Once a name reaches a rank tier, how long does it typically stay there before falling out?
Built from a Kaplan-Meier survival curve: every historical run any name has ever had above this tier, with runs still ongoing today counted as still in progress rather than as an exit.Ian isn't currently in the Top 100 tier. Estimated chance of entering it in the forecast window: 14%.
If Ian enters Top 100, chance it's still there after:
Names that do enter Top 100 have historically stayed a median of ~19 years. Based on 668 historical Top 100 runs across every name in the dataset.