Girls' name · peaked in 1973

Sonia name popularity since 1925

65,884 babies born in the US from 1925 to 2025 were named Sonia. Half of them were born in 1974 or earlier, so the typical Sonia is about 52 years old in 2026. Sonia peaked in 1973 as the #174 name for girls, and it was outside the top 1,000 in 2025.

US babies since 1925: 65,884; Named Sonia, 1925–2025
Peak year: 1973; #174 for girls that year
Typical age: About 52; Median birth year 1974
In 2025: Not top 1,000; #1,307 for girls in 2025
Girls / boys: 99.6% girls; 65,605 girls · 279 boys
Most popular in: California; 2.27× its national share

Peak year is the year Sonia made up the largest share of US girls, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.

Sonia births per year, 1925–2025

The biggest year by count was 1970. Measured as a share of all babies, Sonia peaked in 1973.

Steepest fall: Between 1938 and 1943, Sonia's share of baby girls fell by 52%, from 1 in 2,570 to 1 in 5,330.
Fastest rise: Between 1961 and 1966, it became 1.9× more common, from 1 in 2,050 baby girls to 1 in 1,110.

Shaded on the chart. Both compare Sonia's share of all US girls five years apart, counting only years with at least 100 babies named Sonia.

Decade by decade

Babies named Sonia in each decade, and its rank among girls' names in the middle year of the decade (1935, 1945 … 2025).

Decade	Girls	Boys	Rank
1925–29	813	0	–
1930s	2,510	0	#428
1940s	2,571	0	#471
1950s	5,865	5	#358
1960s	12,945	37	#244
1970s	15,205	97	#177
1980s	9,532	111	#280
1990s	7,253	29	#368
2000s	4,886	0	#582
2010s	2,886	0	#1,073
2020–25	1,139	0	#1,307

Ranks count every name given to at least 5 girls that year, so they can go past 1,000.

Generation fingerprint

36.7% of babies named Sonia from 1925 to 2025 were born in the Gen X years (1965–1980). The full split by generation:

Where Sonia is most popular

The index compares Sonia's share of babies in each state with its share nationwide, 1925–2025 (1.50× = 50% more common). States with at least 300 babies named Sonia.

State	Index	Babies
California	2.27×	14,888
Arizona	1.85×	1,482
New York	1.85×	8,685
Texas	1.83×	8,855
New Mexico	1.47×	502

Other spellings

Spellings that sound like Sonia and were given to at least 1,000 girls from 1925 to 2025, with the year each one was most popular.

Spelling	Girls	Peak year
Sonia (this page)	65,605	1973
Sonya	65,411	1967

Names with a similar story

Of the other 1999 names on this site, these six had the share of babies closest in shape to Sonia's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Sonia.

Names from the same era

Other common names that peaked within two years of Sonia (1973).

Source: U.S. Social Security Administration national and state baby-name data, which covers names given to at least 5 babies of one sex in a year. About the data