Girls' name · since 1968
Sia
Since 1968, U.S. Social Security records show 2,790 babies named Sia, peaking in 2025. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #3,768 of 72,339
- all-time among girls
- #1,107 of 17,297
- 2025 SSA year
- 2,790
- born since 1968
- 2020s
- peak decade
2,790 babies have been named Sia since 1968, making it today's #1107 girls' name.
Sia has 2,790 recorded births among girls since 1968, per the U.S. Social Security Administration, ranked #1107 as of the latest data, more common than 94% of girls, busiest in the 2020s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1968 to 2025.
- #3,768 of 72,339 all-time among girls
- #1,107 of 17,297 2025 SSA year
- 2,790 born since 1968
- 2020s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Sia ranks #3,768 of 72,339 girls' names by all-time recorded births (highest first) and #1,107 of 17,297 among girls' names in 2025. 2,790 born since 1968, peaking in the 2020s.
- #3,768 of 72,339
- all-time among girls
- #1,107 of 17,297
- 2025 SSA year
- 2,790
- born since 1968
- 2020s
- peak decade
Sia's 2,790 recorded births place it above 94.78% of the 72,339 girls names in the full SSA archive.
17 jurisdictions carry state-level records, led by California.
How Sia compares
2,790 Top 19% higher than 81% of 17,297 names currently given to girls
Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Sia's all-time total is 7x the median girls name, and Olivia still leads by a wide margin.
| Metric | Sia | Median girls name (Kyann) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 2,790 | 376 | 567,345 |
| Peak-year births | 215 | 21 | 19,840 |
Sia's usage pattern, beyond the headline number
Sia splits its recorded history at 1998: 90% of all births land in the more recent half, 10% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1976 (5 births) -- compare that against the 2025 peak of 215 for a sense of just how much the name's popularity has swung.
Sia popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1968–2025
- Peak year (2025)
- 215
- Annual births at peak, across 58 years of records
Sia popularity over time - boys
5 total births recorded since 1991 (Sia as boys' name)
Sia by decade
2020s is the heaviest window (1,119 births, 40% of the file).
2020s was Sia's strongest decade.
1,119 babies received the name during that ten-year window, about 40% of all-time use.
Sia births by decade
Total births in each ten-year window
- 1960s 9
1960s
9 births
- 1970s 57
1970s
57 births
- 1980s 103
1980s
103 births
- 1990s 121
1990s
121 births
- 2000s 355
2000s
355 births
- 2010s
2010s
1,026 births
- 2020s
2020s
1,119 births
What this shows Peak: 2020s at 1,119 births (40% of all-time use).
How Sia compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Sia's total volume
Sia by state
Where Sia concentrates geographically, total births since 1968
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 551 | 19.7% |
| #2 | New Jersey | | 212 | 7.6% |
| #3 | Texas | | 188 | 6.7% |
| #4 | New York | | 184 | 6.6% |
| #5 | Washington | | 103 | 3.7% |
| #6 | Illinois | | 91 | 3.3% |
| #7 | Florida | | 85 | 3.0% |
| #8 | Georgia | | 63 | 2.3% |
551 of 2,790 births nationwide. Compared to a flat distribution across 17 reporting states.
Sia appears in 17 states. Explore state details →
Frequently Asked Questions
How popular is the name Sia? ▼
Where does Sia sit in the SSA name archive? ▼
When was Sia most popular? ▼
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What names are similar to Sia? ▼
What to do with Sia's data
- California records the most Sias (551 births) -- see the full state breakdown if geography matters to your decision. California names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Sia
Nearby Names Like Sia
Names with a similar sound, spelling, or feel to Sia
Compare Sia side by side: Sia vs Siara Sia vs Sianna Sia vs Siana
Related Names
Names with a similar popularity rank to Sia
Nationwide names with similar peak year or record span
Two nationwide peer axes for Sia: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2025)
Similar record span (~57 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1968–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Sia draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.