Ilsa: Name Popularity, History & Rankings (1880

Rank 2025

#5,622

among girls · ↑4,213 vs 2024

Babies in 2025

named Ilsa

How common

1 in 73,058

girls born in 2025

Peak year

2011

34 babies

All-time total

917

#7,979 all-time among girls

First recorded

1943

in Social Security records

Ilsa popularity over time

917 babies have been named Ilsa since 1943, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure

Births per 1,000 babies of that sex, comparable across eras

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade	Girls	Per year	Change	Best rank
1880s	–	–	–	–
1890s	–	–	–	–
1900s	–	–	–	–
1910s	–	–	–	–
1920s	–	–	–	–
1930s	–	–	–	–
1940s	35	4	–	#2,687
1950s	36	4	+3%	#4,186
1960s	88	9	+144%	#3,630
1970s	79	8	-10%	#3,770
1980s	85	9	+8%	#5,040
1990s	120	12	+41%	#5,099
2000s	179	18	+49%	#5,434
2010s	205	21	+15%	#4,288
2020s (to 2025)	90	15	-27%	#5,622

Where Ilsa is heading

A five-year projection from the recent trend in births per 1,000 girls (damped so it flattens over time), converted to babies at today's birth totals. The implied rank places that projection in the 2025 field. A projection, not a promise: real trends bend.

Year	Projected babies	Per 1,000 girls	Implied rank
2026	21	0.01	outside top 500
2027	20	0.01	outside top 500
2028	19	0.01	outside top 500
2029	19	0.01	outside top 500
2030	18	0.01	outside top 500

The story of Ilsa

Ilsa is rare for girls in the United States, ranked #5,622 in 2025 with 22 babies given the name. It is currently declining compared with a decade ago.

Since 1943, 917 American babies have been named Ilsa. Its peak came in 2011, when 34 newborns received the name, the signature sound of the 2010s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Ilsa stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Ilsa?

The median living Ilsa is about 23 years old; half are between 13 and 44. An estimated 900 people named Ilsa are alive in the United States today.

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Ilsa year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year	Girls	Girls rank
2025	22	#5,622
2024	10	#9,835
2023	12	#8,673
2022	15	#7,415
2021	14	#7,785
2020	17	#6,741
2019	24	#5,358
2018	22	#5,674
2017	18	#6,639
2016	10	#10,386
2015	9	#11,259
2014	16	#7,440
2013	31	#4,571
2012	17	#7,254
2011	34	#4,288
2010	24	#5,689
2009	23	#5,970
2008	22	#6,222
2007	22	#6,183
2006	16	#7,624
2005	17	#6,947
2004	16	#7,203
2003	22	#5,485
2002	14	#7,569
2001	21	#5,434
2000	6	#13,803
1995	10	#8,313
1990	–	–
1985	6	#9,745
1980	7	#8,469
1975	12	#4,960
1970	8	#6,005
1965	9	#4,621
1960	9	#4,580
1955	9	#4,186
1950	6	#4,961
1945	5	#4,843
1940	–	–
1935	–	–
1930	–	–
1925	–	–
1920	–	–
1915	–	–
1910	–	–
1905	–	–
1900	–	–
1895	–	–
1890	–	–
1885	–	–
1880	–	–

Frequently asked questions

Quick answers about Ilsa, drawn from the same Social Security data as the charts above.

How old is the average Ilsa?

The median living Ilsa is about 23 years old. Half of all living Ilsas are between 13 and 44 years old.

How many people named Ilsa are alive today?

An estimated 900 people named Ilsa are alive in the United States, based on 917 recorded births and Social Security life tables.

How popular is the name Ilsa in 2025?

Ilsa ranked #5,622 among girls' names in the United States in 2025, with 22 babies given the name, according to Social Security Administration data.

How many people are named Ilsa?

917 babies have been named Ilsa in the United States since 1943, based on Social Security card applications.

When was the name Ilsa most popular?

Ilsa peaked in 2011, when 34 newborns received the name.

Is Ilsa a boy or girl name?

Ilsa is overwhelmingly a girl's name: 100% of babies with the name.

Is the name Ilsa rising or falling?

Ilsa is declining, less popular now than a decade ago.

Will Ilsa become more popular?

Ilsa is trending downward. If the recent trend holds, we project roughly 18 girls named Ilsa in 2030, which would rank outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Names like Ilsa

Names that sound and feel close to Ilsa: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Ilsa with similar names → More names starting with I →