Dione
2,946 recorded births · active 1929–2025
Compare Dione →Living-age distribution
The median living Dione is 52. If you meet a Dione, there's about a 70% chance they're between 32 and 59 years old.
Popularity arc
Peak Dione: 1970. Down 96% from peak.
Projected: the dashed 10-year forecast (Holt damped-trend exponential smoothing, fit to recent years), with a shaded 95% interval.
Gender balance
20.2% male, 79.8% female.
Among males: median age 36 (19–53). Among females: median age 53 (41–61).
Rarity
Dione ranks #5,944 out of 105,966 names ever recorded by the SSA.
Geographic fingerprint
Diones are 0.4x more common in the West than the national average.
Predictive modeling
Three statistical models, all fit to Dione's own SSA history plus the historical behavior of every other name in the dataset.
Peak popularity prediction
Dione's modeled peak was #1,362 in 1970 — 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 Dione's share of births by fitting a damped-trend model to its last 91 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 1970 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.
Dione peaked in 1970 and now sits at roughly 4% of that peak, 55 years later — a name that was genuinely common once, now mostly heard from an older generation.
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.Dione isn't currently in the Top 100 tier. Estimated chance of entering it in the forecast window: 0%.
If Dione 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.