Total births
2,790
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.
- #1271
- among girls today
- 2,790
- born since 1968
- 2020s
- peak decade
- 93%
- more common than other girls
2,790 babies have been named Sia since 1968, making it today's #1271 girls' name.
Sia has 2,790 recorded births among girls since 1968, per the U.S. Social Security Administration, ranked #1271 as of the latest data, more common than 93% 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.
- #1271 among girls today
- 2,790 born since 1968
- 2020s peak decade
- 93% more common than other girls
Data updated Jun 2026
The verdict
Sia is currently the #1271 girls' name in America, more common than 93% of girls - 2,790 born since 1968, peaking in the 2020s.
- #1271
- among girls today
- 2,790
- born since 1968
- 2020s
- peak decade
- 93%
- more common than other girls
Sia vs. every other girls name in current SSA rankings
#1271
of 17,726 girls in use
More common than 93% of names given to girls today.
2020s
Peak decade
40% of everyone ever named Sia was born in this single decade.
2025
Single peak year
215 babies were named Sia in 2025 - its busiest year on record.
How Sia compares
2,790 Top 18% higher than 82% of 17,726 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 (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 2,790 | 382 | 567,345 |
| Peak-year births | 215 | 48 | 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 at a glance
Outside the top 1,000Peak year
2025
Current rank
#1,271
Active since
1968
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
Total births in each ten-year window, peak vs trough at a glance
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 vs 15 similarly-sized girls names
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% |
California share of Sia's total US births 19.7%
Even split
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? ▼
Since 1968, Social Security records show 2,790 babies named Sia. Today it holds rank #1271 among girls. Its busiest year on record was 2025, with 215 births.
When was Sia most popular? ▼
Sia was most popular in the 2020s decade with 1,119 total births. The single peak year was 2025.
Where is Sia most popular? ▼
The top states for the name Sia are California (551 births), New Jersey (212 births), Texas (188 births).
How long has the name Sia been used? ▼
Records for Sia go back to 1968, giving 58 years of history through 2025.
What names are similar to Sia? ▼
Names with a similar sound or spelling include Siara, Sianna, Siana, Siani, and 4 more. These share a common prefix and are also used for girls.
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
- Weighing it against an alternative? Put two names side by side. Compare 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
Siara Girl
#1714 2,132 births
Sianna Girl
#2002 2,052 births
Siana Girl
#3028 1,268 births
Siani Girl
#4442 1,166 births
Sian Girl
#11291 858 births
Compare Sia side by side: Sia vs Siara Sia vs Sianna Sia vs Siana
Related Names
Names with a similar popularity rank to Sia
Cassie #1270
46,642 births · Peak 1982
Eimy #1272
1,408 births · Peak 2025
Kollyns #1269
1,376 births · Peak 2025
Rowen #1273
2,647 births · Peak 2018
Brynley #1268
3,425 births · Peak 2017
Paisleigh #1274
3,568 births · Peak 2018
Ariadne #1267
4,824 births · Peak 2016
Lorena #1275
44,960 births · Peak 1980
Data Sources
Data as of June 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).
Cite this page
NameAlmanac Editorial. "Sia: #1271 Girls' Name - 2,790 Births, Peak 2025." NameAlmanac. Accessed via https://namealmanac.com/name/sia. Licensed CC BY-SA 4.0.
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 June 2026.