Willo: Name Popularity, History & Rankings (1880

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	73	7	–	#2,187
1920s	147	15	+101%	#1,871
1930s	166	17	+13%	#1,633
1940s	63	6	-62%	#2,958
1950s	30	3	-52%	#4,884
1960s	7	1	-77%	#5,884
1970s	–	–	–	–
1980s	–	–	–	–
1990s	–	–	–	–
2000s	38	4	–	#12,625
2010s	74	7	+95%	#8,584
2020s (to 2025)	39	7	-12%	#9,515

Decade

Girls

Per year

Change

Best rank

1880s

–

1890s

–

1900s

–

1910s

–

#2,187

1920s

147

+101%

#1,871

1930s

166

+13%

#1,633

1940s

-62%

#2,958

1950s

-52%

#4,884

1960s

-77%

#5,884

1970s

–

1980s

–

1990s

–

2000s

–

#12,625

2010s

+95%

#8,584

2020s (to 2025)

-12%

#9,515

The story of Willo

Willo is rare for girls in the United States, ranked #10,871 in 2025 with 9 babies given the name. It is currently declining compared with a decade ago.

Since 1911, 637 American babies have been named Willo. Its peak came in 1924, when 23 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 Willo stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Willo?

The median living Willo is about 21 years old; half are between 9 and 82. An estimated 300 people named Willo 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.

Willo year by year

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

Year	Girls	Girls rank
2025	9	#10,871
2024	–	–
2023	8	#12,127
2022	6	#15,194
2021	11	#9,515
2020	5	#17,386
2019	–	–
2018	13	#8,584
2017	8	#12,663
2016	13	#8,850
2015	9	#11,794
2014	6	#16,408
2013	9	#11,913
2012	9	#12,160
2011	7	#14,753
2010	–	–
2009	7	#15,164
2008	5	#20,337
2007	9	#12,625
2006	–	–
2005	–	–
2004	5	#18,712
2003	6	#15,699
2002	–	–
2001	6	#15,285
2000	–	–
1995	–	–
1990	–	–
1985	–	–
1980	–	–
1975	–	–
1970	–	–
1965	–	–
1960	–	–
1955	–	–
1950	5	#6,096
1945	–	–
1940	10	#2,958
1935	15	#2,203
1930	21	#1,813
1925	13	#2,772
1920	12	#2,895
1915	8	#3,425
1910	–	–
1905	–	–
1900	–	–
1895	–	–
1890	–	–
1885	–	–
1880	–	–

Frequently asked questions

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

How old is the average Willo?

The median living Willo is about 21 years old. Half of all living Willos are between 9 and 82 years old.

How many people named Willo are alive today?

An estimated 300 people named Willo are alive in the United States, based on 637 recorded births and Social Security life tables.

How popular is the name Willo in 2025?

Willo ranked #10,871 among girls' names in the United States in 2025, with 9 babies given the name, according to Social Security Administration data.

How many people are named Willo?

637 babies have been named Willo in the United States since 1911, based on Social Security card applications.

When was the name Willo most popular?

Willo peaked in 1924, when 23 newborns received the name.

Is Willo a boy or girl name?

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

Is the name Willo rising or falling?

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

Willo

Willo popularity over time

The story of Willo

How old are people named Willo?

Willo year by year

Frequently asked questions

Names like Willo