Casimiro: Name Popularity, History & Rankings (1880

Rank 2025

#10,908

among boys

Babies in 2025

named Casimiro

How common

1 in 284,679

boys born in 2025

Peak year

1921

28 babies

All-time total

1,084

#4,874 all-time among boys

First recorded

1881

in Social Security records

Casimiro popularity over time

1,084 babies have been named Casimiro since 1881, 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	Boys	Per year	Change	Best rank
1880s	6	1	–	#803
1890s	–	–	–	–
1900s	–	–	–	–
1910s	78	8	–	#1,637
1920s	170	17	+118%	#1,418
1930s	113	11	-34%	#1,536
1940s	96	10	-15%	#1,794
1950s	115	12	+20%	#1,773
1960s	98	10	-15%	#2,055
1970s	104	10	+6%	#2,521
1980s	103	10	-1%	#2,961
1990s	73	7	-29%	#5,145
2000s	74	7	+1%	#5,627
2010s	27	3	-64%	#8,987
2020s (to 2025)	27	5	+67%	#8,290

The story of Casimiro

Casimiro is rare for boys in the United States, ranked #10,908 in 2025 with 6 babies given the name. It is currently rising compared with a decade ago.

Since 1881, 1,084 American babies have been named Casimiro. Its peak came in 1921, when 28 newborns received the name, the signature sound of the 1920s.

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 Casimiro stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Casimiro?

The median living Casimiro is about 48 years old; half are between 30 and 65. An estimated 600 people named Casimiro 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.

Casimiro year by year

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

Year	Boys	Boys rank
2025	6	#10,908
2024	–	–
2023	5	#12,546
2022	7	#10,011
2021	9	#8,290
2020	–	–
2019	8	#9,040
2018	5	#12,489
2017	6	#11,007
2016	8	#8,987
2015	–	–
2014	–	–
2013	–	–
2012	–	–
2011	–	–
2010	–	–
2009	9	#8,410
2008	5	#12,832
2007	–	–
2006	6	#10,885
2005	8	#8,416
2004	10	#7,049
2003	8	#7,960
2002	6	#9,564
2001	10	#6,529
2000	12	#5,627
1995	9	#5,992
1990	7	#6,508
1985	16	#2,961
1980	6	#5,620
1975	13	#2,922
1970	9	#3,313
1965	8	#3,016
1960	6	#3,716
1955	8	#3,001
1950	8	#2,800
1945	6	#3,033
1940	8	#2,698
1935	11	#2,270
1930	16	#1,901
1925	12	#2,457
1920	13	#2,355
1915	13	#2,086
1910	–	–
1905	–	–
1900	–	–
1895	–	–
1890	–	–
1885	–	–
1880	–	–

Famous people named Casimiro

The most globally famous bearers of the name, ranked by fame across Wikipedia editions (Pantheon project, MIT).

1 Casimiro Torres Topics referred to by the same term b. 1906 · Contemporary

Portraits from Wikipedia (Wikimedia Commons).

Frequently asked questions

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

How old is the average Casimiro?

The median living Casimiro is about 48 years old. Half of all living Casimiros are between 30 and 65 years old.

How many people named Casimiro are alive today?

An estimated 600 people named Casimiro are alive in the United States, based on 1,084 recorded births and Social Security life tables.

How popular is the name Casimiro in 2025?

Casimiro ranked #10,908 among boys' names in the United States in 2025, with 6 babies given the name, according to Social Security Administration data.

How many people are named Casimiro?

1,084 babies have been named Casimiro in the United States since 1881, based on Social Security card applications.

When was the name Casimiro most popular?

Casimiro peaked in 1921, when 28 newborns received the name.

Is Casimiro a boy or girl name?

Casimiro is overwhelmingly a boy's name: 100% of babies with the name.

Is the name Casimiro rising or falling?

Casimiro is on the rise, noticeably more popular now than a decade ago.

Who are famous people named Casimiro?

Well-known people named Casimiro include Casimiro Torres (soccer player).

Names like Casimiro

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

Compare Casimiro with similar names → More names starting with C →