Illinois
UnisexIllinois has been given to 16 babies in the U.S. since 1918. It peaked in 1920.
Popularity over time births per year, 1880–2025
Total babies
16
Peak year
1920 (6 babies)
Rank in 2025
Below top 1000
First recorded
1918
10-year trend
New / returning
Gender split
69% girls / 31% boys
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Illinois.
Sibling name ideas for Illinois
Same era and popularity as Illinois, avoiding matching initials or rhymes.
FAQ
How popular is the name Illinois?
Illinois has been given to 16 babies in the U.S. since 1918. It ranked below the top 1000 in 2025.
When did the name Illinois peak?
Illinois peaked in 1920, when 6 babies were given the name.
Is Illinois a girl or boy name?
Illinois is a unisex name, used for both girls and boys.
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