How rare is the name Seamus?

6,955 people in the United States have the first name Seamus, about 1 in 43,427. It ranks #3,142 of 53,615 first names in the 2020 Census, tied with 1 other.

first name

SEAMUS

#3,142

of 53,615 first names recorded in the 2020 Census

People
6,955
About
1 in 43,427
This common or more
81.7%
Who bears it

Of the 6,955 people named Seamus, 90.2% reported their origin as White, 4.4% as Hispanic or Latino and 4.3% as two or more races. Virtually all are male (99.7%). These count how people described themselves on the 2020 Census, not where the name comes from.

Seamus peaked in 2008, when 298 babies got the name.

Births per year, SSA records 1880–2025
19572025
Peak year
2008
Births that year
298
In 2025*
154 ▼48%
Recorded as
almost entirely male

At least 7,809 babies have been given the name since 1957. 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.

Seamus by decade

Among all names given to American babies, its best decade was the 2000s, when it ranked #1,770. The largest share of babies named Seamus, 47.7%, were born between 1997 and 2012, as Generation Z.

1950s#10,13425
1960s#5,786122
1970s#3,820332
1980s#3,445497
1990s#2,3311,241
2000s#1,7702,446
2010s#2,0182,268
2020s#2,740878
Baby boom 1946–640.8%
Generation X 1965–805.9%
Millennials 1981–9615%
Generation Z 1997–1247.7%
2013 and later30.6%

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 Seamus is most common

Compared with all babies born in each state since 1910, Seamus has been most common in Massachusetts (5.8×), New Hampshire (3.2×), and Connecticut (2.3×), and least common in Texas (0.33×).

5,361 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 Seamus

1 other first name also has 6,955 people.

#3,142 Memphis · 6,955

Either side of Seamus

#3,141 Malissa · 6,963#3,142 Memphis · 6,955#3,144 Concetta · 6,950#3,145 Anders · 6,937

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