Sia
Sia was given to 215 girls in 2025, #1,107 among girls’ names; 2,795 Americans have been recorded with it since 1968 (Social Security Administration, published May 2026).
An estimated 2,770 Americans named Sia and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 8 years old and half are between 4 and 16.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Sia by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Sia mean?
Wiktionary, English section
Sia is “a female given name.”
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Sia?
#1,107 among girls’ names, 2025
Sia rose from #1,642 in 2015 to #1,107 in 2025 among girls’ names; its share of girls born rose from 0.07 to 0.13 per 1,000.
215 babies in 2025, the peak
Sia peaked in 2025, when 215 girls were given it, #1,107 among girls’ names. In 2024 it went to 183 girls.
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2025 | 215 | #1,107 | 0.13 |
| 2024 | 183 | #1,274 | 0.11 |
| 2023 | 169 | #1,343 | 0.11 |
| 2022 | 212 | #1,149 | 0.13 |
| 2021 | 166 | #1,340 | 0.10 |
| 2020 | 174 | #1,286 | 0.11 |
| 2019 | 148 | #1,489 | 0.09 |
| 2018 | 169 | #1,337 | 0.10 |
| 2017 | 136 | #1,606 | 0.08 |
| 2016 | 127 | #1,691 | 0.07 |
Every recorded year (53)
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2015 | 131 | #1,642 | 0.07 |
| 2014 | 66 | #2,679 | 0.04 |
| 2013 | 69 | #2,591 | 0.04 |
| 2012 | 58 | #2,974 | 0.03 |
| 2011 | 57 | #3,010 | 0.03 |
| 2010 | 65 | #2,750 | 0.04 |
| 2009 | 50 | #3,352 | 0.03 |
| 2008 | 54 | #3,153 | 0.03 |
| 2007 | 43 | #3,776 | 0.02 |
| 2006 | 52 | #3,218 | 0.03 |
| 2005 | 58 | #2,854 | 0.03 |
| 2004 | 49 | #3,164 | 0.03 |
| 2003 | 23 | #5,386 | 0.01 |
| 2002 | 17 | #6,649 | 0.01 |
| 2001 | 9 | #10,898 | under 0.01 |
| 1999 | 12 | #8,151 | 0.01 |
| 1998 | 7 | #12,236 | under 0.01 |
| 1997 | 10 | #8,929 | 0.01 |
| 1996 | 12 | #7,515 | 0.01 |
| 1995 | 5 | #15,415 | under 0.01 |
| 1994 | 10 | #8,700 | 0.01 |
| 1993 | 21 | #4,793 | 0.01 |
| 1992 | 17 | #5,682 | 0.01 |
| 1991 | 15 | #6,204 | 0.01 |
| 1990 | 12 | #7,239 | 0.01 |
| 1989 | 14 | #6,110 | 0.01 |
| 1988 | 8 | #9,120 | under 0.01 |
| 1986 | 9 | #7,671 | 0.01 |
| 1985 | 8 | #8,212 | under 0.01 |
| 1984 | 9 | #7,330 | 0.01 |
| 1983 | 10 | #6,641 | 0.01 |
| 1982 | 22 | #3,749 | 0.01 |
| 1981 | 12 | #5,842 | 0.01 |
| 1980 | 11 | #6,262 | 0.01 |
| 1979 | 8 | #7,942 | under 0.01 |
| 1978 | 7 | #8,423 | under 0.01 |
| 1977 | 9 | #6,802 | 0.01 |
| 1976 | 5 | #10,663 | under 0.01 |
| 1975 | 8 | #7,044 | 0.01 |
| 1974 | 7 | #7,553 | under 0.01 |
| 1972 | 7 | #7,162 | under 0.01 |
| 1971 | 6 | #8,176 | under 0.01 |
| 1968 | 9 | #5,086 | 0.01 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Sia a boy’s or a girl’s name?
Sia has been given almost only to girls: 5 boys in 53 years of records.
Girls and boys named Sia: the SSA national file counts each sex separately.
How many people are named Sia, and how old are they?
2,770 alive in 2026, estimated
That is 99% of the 2,795 Americans ever recorded as Sia. The median Sia alive today is 8 years old; half are between 4 and 16.
The 2020 Census counted 2,399 people named Sia (2,202 women and girls, 197 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 1,703 born in the U.S. The Census count is 41% above that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Generation X | 1965-1980 | 72 |
| Millennials | 1981-1996 | 184 |
| Generation Z | 1997-2012 | 559 |
| Generation Alpha | 2013-2025 | 1,950 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Sia born?
The states with the most babies named Sia are California, Texas and Florida, with 44% of its births recorded by state in 2025.
| State | Births 2025 | Rank, girls | vs. national |
|---|---|---|---|
| California | 42 | #751 | 1.6× |
| Texas | 24 | #1,151 | 0.6× |
| Florida | 13 | #1,163 | 0.5× |
| New Jersey | 12 | #661 | 2.6× |
| Washington | 12 | #580 | 1.6× |
| Georgia | 9 | #1,059 | 0.7× |
| Pennsylvania | 9 | #999 | 0.3× |
| Massachusetts | 9 | #613 | 0.6× |
| Ohio | 9 | #1,021 | 0.2× |
| New York | 8 | #1,637 | 1.1× |
Where Sia is more common than its national share predicts
Relative to its national share, Sia is most over-represented in New Jersey: since 1968 it was given 2.6 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among girls’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Sia with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 5 names spelled alike, given to 6,485 babies since 1880, Sia is the second most given (43% of them). In 2025 it was given to 215 of their 542 babies (40%), again the second most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Sia
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Sia and names like it
- Compare Sia and SiyaBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2020sSia peaked in 2025.
- California’s most given namesThe state where SSA recorded the most babies named Sia since 1910.
- The top names of 2025The year the most babies were named Sia.
- The names of Generation AlphaMost people named Sia alive today were born 2013-2025.
- Names starting with SMost given first.