Sinia
Sinia was last recorded in 2018, when 5 babies were given it; 100 Americans have been recorded with it between 1919 and 2018 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Sinia by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Sinia?
Unranked in 2025
Its last girls’ rank on record is #17,790, in 2018; SSA lists a name only in years with 5 or more births.
13 babies in 2002, the peak
Sinia peaked in 2002, when 13 girls were given it, #8,218 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2018 | 5 | #17,790 | 2.9 |
| 2008 | 7 | #15,174 | 3.7 |
| 2007 | 8 | #13,761 | 4.2 |
| 2006 | 10 | #11,301 | 5.3 |
| 2005 | 8 | #12,850 | 4.3 |
| 2004 | 11 | #9,805 | 6.0 |
| 2003 | 5 | #18,024 | 2.7 |
| 2002 | 13 | #8,218 | 7.2 |
| 2001 | 6 | #15,078 | 3.3 |
| 2000 | 7 | #12,944 | 3.9 |
Every recorded year (14)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1993 | 5 | #15,458 | 2.8 |
| 1991 | 5 | #15,098 | 2.7 |
| 1925 | 5 | #5,672 | 4.1 |
| 1919 | 5 | #5,457 | 4.4 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Sinia a boy’s or a girl’s name?
Sinia has been recorded only for girls: SSA lists no boys with the name in 14 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Sinia: the SSA national file counts each sex separately.
How many people are named Sinia, and how old are they?
An estimated 89 Americans named Sinia and born in the U.S. are alive in 2026, too few to state an age range. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 435 people named Sinia (420 women and girls, 15 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 90 born in the U.S. The Census count is 4.8 times 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.
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).
How common is the spelling Sinia?
Sinia is a less common spelling of Syniah: SSA has recorded 100 Sinia and 571 Syniah since 1880.
Of these 8 names spelled alike, given to 60,326 babies since 1880, Sinia is the eighth most given (<1% of them). In 2025 none of their 3,431 babies recorded by SSA was a Sinia (SSA lists a name only with 5 or more babies of one sex).
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 Sinia
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 Sinia and names like it
- Compare Sinia and SyniahBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sSinia peaked in 2002.
- The top names of 2002The year the most babies were named Sinia.
- Names starting with SMost given first.