How rare is the name Alfonzo?

4,109 people in the United States have the first name Alfonzo, about 1 in 73,505. It ranks #4,506 of 53,615 first names in the 2020 Census, tied with 1 other.

first name

ALFONZO

#4,506

of 53,615 first names recorded in the 2020 Census

People
4,109
About
1 in 73,505
This common or more
84.1%
Who bears it

Of the 4,109 people named Alfonzo, 48% reported their origin as Black, 44.4% as Hispanic or Latino and 3.8% as White. Virtually all are male (99.7%). These count how people described themselves on the 2020 Census, not where the name comes from.

Alfonzo peaked in 1970, when 90 babies got the name.

Births per year, SSA records 1880–2025
18892025
Peak year
1970
Births that year
90
In 2025*
27 ▼70%
Recorded as
almost entirely male

At least 5,783 babies have been given the name since 1889. Years SSA withheld, because fewer than 5 were born, are skipped rather than drawn as zero. * 2025 is the newest year published and it undercounts: a card application is filed some time after a birth.

Alfonzo by decade

Among all names given to American babies, its best decade was the 1950s, when it ranked #2,019. The largest share of babies named Alfonzo, 21.9%, were born during the baby boom (1946–1964).

1880s#2,8708
1890s#3,9395
1900s#2,12783
1910s#2,510221
1920s#2,353368
1930s#2,121382
1940s#2,112473
1950s#2,019701
1960s#2,210669
1970s#2,214802
1980s#2,825669
1990s#3,840586
2000s#6,278396
2010s#8,401280
2020s#9,307140
Before 19010.4%
Greatest Generation 1901–2710.1%
Silent Generation 1928–4512.2%
Baby boom 1946–6421.9%
Generation X 1965–8020.7%
Millennials 1981–9618.2%
Generation Z 1997–1210.9%
2013 and later5.7%

Rank counts both sexes together, among every name SSA recorded that decade; the number under it is births. The 2020s run only to 2025. Generation years follow Pew Research Center, which has not named a generation after 2012.

Where Alfonzo is most common

Compared with all babies born in each state since 1910, Alfonzo has been most common in Georgia (3.3×), North Carolina (3.1×), and South Carolina (2.9×), and least common in New York (0.58×).

2,094 births recorded by state, 1910–2025. 2× means twice as common as nationally. States with fewer than 30 such births are left blank, and SSA withholds any year with fewer than 5 in a state, so small states read low.

Exactly as common as Alfonzo

1 other first name also has 4,109 people.

#4,506 Katherin · 4,109

Either side of Alfonzo

#4,504 Raeann · 4,111#4,505 Minor · 4,110#4,506 Katherin · 4,109#4,508 Jeronimo · 4,107

Spelled almost the same

8 first names in the 2020 Census spelled within a letter or two of Alfonzo, most common first.

#913 Alfonso · 49,412#12,395 Alphonzo · 1,005#16,132 Alfonza · 704#19,256 Alfonse · 552#22,276 Alfonsa · 448#25,917 Alfons · 363#36,405 Alfanso · 218#48,685 Alfonzia · 130

Also a last name

As a last name, Alfonzo ranks #26,563 of 156,621, with 967 people. See Alfonzo as a last name

Compare