Sidonia
Sidonia was last recorded in 2014, when 5 babies were given it; 398 Americans have been recorded with it between 1887 and 2014 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Sidonia by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Sidonia mean?
Wiktionary, English section
Sidonia is “a female given name.” Its etymology gives the sense “of” (-ia).
From Sidon + -ia (“of”).
/saɪ̯ˈdoʊ̯.ni.ə/
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Sidonia?
Unranked in 2025
Its last girls’ rank on record is #18,849, in 2014; SSA lists a name only in years with 5 or more births.
13 babies in 1918, the peak
Sidonia peaked in 1918, when 13 girls were given it, #2,657 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2014 | 5 | #18,849 | 2.8 |
| 2007 | 6 | #17,311 | 3.1 |
| 2002 | 6 | #15,135 | 3.3 |
| 2001 | 7 | #13,285 | 3.9 |
| 2000 | 8 | #11,633 | 4.4 |
| 1999 | 5 | #16,547 | 2.8 |
| 1996 | 5 | #15,534 | 2.9 |
| 1973 | 5 | #9,583 | 3.4 |
| 1971 | 6 | #8,177 | 3.6 |
| 1962 | 8 | #5,233 | 4.1 |
Every recorded year (53)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1961 | 6 | #6,464 | 3.0 |
| 1959 | 7 | #5,491 | 3.5 |
| 1943 | 10 | #3,217 | 7.2 |
| 1941 | 12 | #2,648 | 9.9 |
| 1939 | 7 | #3,735 | 6.4 |
| 1937 | 8 | #3,400 | 7.5 |
| 1936 | 5 | #4,776 | 4.8 |
| 1931 | 7 | #3,799 | 6.6 |
| 1929 | 5 | #5,193 | 4.5 |
| 1927 | 9 | #3,531 | 7.5 |
| 1926 | 6 | #4,772 | 5.1 |
| 1925 | 10 | #3,332 | 8.2 |
| 1924 | 8 | #3,956 | 6.4 |
| 1923 | 13 | #2,709 | 10.8 |
| 1922 | 8 | #3,964 | 6.7 |
| 1921 | 11 | #3,127 | 8.9 |
| 1920 | 8 | #3,907 | 6.7 |
| 1919 | 8 | #3,762 | 7.1 |
| 1918 | 13 | #2,657 | 11.2 |
| 1917 | 12 | #2,675 | 11.1 |
| 1916 | 9 | #3,217 | 8.6 |
| 1915 | 10 | #2,871 | 10.2 |
| 1914 | 10 | #2,408 | 13.1 |
| 1913 | 9 | #2,310 | 14.4 |
| 1912 | 7 | #2,602 | 12.5 |
| 1911 | 9 | #1,774 | 21.5 |
| 1910 | 5 | #2,739 | 12.6 |
| 1909 | 8 | #1,744 | 23.0 |
| 1908 | 6 | #2,068 | 17.9 |
| 1907 | 6 | #2,028 | 18.8 |
| 1905 | 8 | #1,519 | 27.4 |
| 1902 | 6 | #1,763 | 22.7 |
| 1900 | 5 | #2,190 | 16.7 |
| 1899 | 11 | #1,020 | 47.2 |
| 1898 | 6 | #1,671 | 23.2 |
| 1897 | 8 | #1,246 | 34.2 |
| 1895 | 5 | #1,781 | 21.4 |
| 1894 | 9 | #1,122 | 40.4 |
| 1892 | 5 | #1,637 | 23.5 |
| 1890 | 5 | #1,507 | 26.3 |
| 1889 | 5 | #1,459 | 28.0 |
| 1888 | 7 | #1,122 | 39.2 |
| 1887 | 5 | #1,282 | 34.3 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Sidonia a boy’s or a girl’s name?
Sidonia has been recorded only for girls: SSA lists no boys with the name in 53 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Sidonia: the SSA national file counts each sex separately.
How many people are named Sidonia, and how old are they?
An estimated 88 Americans named Sidonia 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 360 people named Sidonia (360 women and girls, 0 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 105 born in the U.S. The Census count is 3.4 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).
Names spelled alike
Of these 4 names spelled alike, given to 1,108 babies since 1880, Sidonia is the most given (36% of them).
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 Sidonia
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 Sidonia and names like it
- Compare Sidonia and SidnieBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1910sSidonia peaked in 1918.
- The top names of 1918The year the most babies were named Sidonia.
- Names starting with SMost given first.