How rare is the name Dillan?

6,657 people in the United States have the first name Dillan, about 1 in 45,371. It ranks #3,228 of 53,615 first names in the 2020 Census, tied with 1 other.

first name

DILLAN

#3,228

of 53,615 first names recorded in the 2020 Census

People
6,657
About
1 in 45,371
This common or more
81.9%
Who bears it

Of the 6,657 people named Dillan, 64.8% reported their origin as White, 16.1% as Hispanic or Latino and 9.6% as Black. 94.8% are male. These count how people described themselves on the 2020 Census, not where the name comes from.

Dillan peaked in 1992, when 341 babies got the name.

Births per year, SSA records 1880–2025
19752025
Peak year
1992
Births that year
341
In 2025*
37 ▼89%
Recorded as
almost entirely male

At least 7,387 babies have been given the name since 1975. 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.

Dillan by decade

Among all names given to American babies, its best decade was the 1990s, when it ranked #1,411. The largest share of babies named Dillan, 58.9%, were born between 1997 and 2012, as Generation Z.

1970s#21,07710
1980s#7,593153
1990s#1,4112,674
2000s#1,5832,859
2010s#2,9121,344
2020s#5,081347
Generation X 1965–800.2%
Millennials 1981–9625.9%
Generation Z 1997–1258.9%
2013 and later15.1%

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 Dillan is most common

Compared with all babies born in each state since 1910, Dillan has been most common in Utah (3.2×), Florida (2.3×), and Louisiana (2.3×), and least common in Massachusetts (0.26×).

5,024 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 Dillan

1 other first name also has 6,657 people.

#3,228 Saylor · 6,657

Either side of Dillan

#3,226 Tod · 6,665#3,227 Jenni · 6,662#3,228 Saylor · 6,657#3,230 Alyse · 6,656

Spelled almost the same

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

#820 Dillon · 57,539#3,661 Dilan · 5,567#15,085 Dillian · 769#16,403 Dillen · 688#19,654 Dillin · 535#19,762 Dillyn · 531#35,789 Dilian · 224

Also a last name

As a last name, Dillan ranks #120,164 of 156,621, with 152 people. See Dillan as a last name

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