Kaylee vs Sophia
How Kaylee and Sophia compare across 146 years of US Social Security Administration baby-name records — popularity history, peak years, current rank, and which name overtook which.
Kaylee
Female · English
Meaning: Variant Of Katherine. Pure. Variant Of Kay And Kayla Keeper Of The Keys: Pure.
US Popularity History — Side-by-Side
Annual US births named Kaylee (girls) vs Sophia (girls), from US Social Security Administration national records.
Source: US Social Security Administration. Names appearing fewer than 5 times per year are suppressed by SSA.
Quick Stats
| Metric | Kaylee | Sophia |
|---|---|---|
| Peak year (most US births) | 2009 — 7,219 girls | 2012 — 22,335 girls |
| Peak rank | #26 | #1 |
| Most recent rank (2025) | #255 (1,205 births) | #5 (12,561 births) |
| Total US births since 1880 | 119,810 | 388,433 |
| Last 10 years (2016–2025) | 23,151 | 133,616 |
Peak comparison takeaway
At its all-time peak, Sophia reached 22,335 US births in 2012 — 15,116 more than Kaylee's peak count.
Strongest States — Last 10 Years
States where each name ranked highest, from SSA's state-level dataset. Lower average rank = name appears closer to the top of that state's girls-name list.
Kaylee — top 5 states
| # | State | Avg rank | Births |
|---|---|---|---|
| 1 | Mississippi | #67 | 334 |
| 2 | Hawaii | #92 | 80 |
| 3 | Alaska | #110 | 31 |
| 4 | Georgia | #112 | 831 |
| 5 | Texas | #113 | 2,570 |
Sophia — top 5 states
| # | State | Avg rank | Births |
|---|---|---|---|
| 1 | New Mexico | #3 | 769 |
| 2 | New York | #3 | 8,010 |
| 3 | Illinois | #3 | 4,861 |
| 4 | Arizona | #4 | 3,118 |
| 5 | Massachusetts | #4 | 2,790 |
Want a different comparison?
Data & methodology
Source: US Social Security Administration national baby names dataset 1880–2025 (CC0 public domain). Names with fewer than 5 occurrences in a given year are suppressed by SSA. State-level coverage runs 1910–2025. Crossover detection compares annual birth counts (not ranks) for each year both names appear. Methodology: see full notes. More comparisons →