Boys name · Illinois
William in Illinois
Babies born in Illinois have been named William 201,081 times in years with 5 or more births, the first being 1910. In 2025 it was the #14 most common boys name there, on 334 births.
Popularity over time
William in Illinois, year by year
| Year | Babies | State rank |
|---|---|---|
| 1910 | 422 | #2 |
| 1926 | 2,983 | #3 |
| 1943 | 3,044 | #5 |
| 1959 | 2,884 | #7 |
| 1976 | 1,139 | #13 |
| 1992 | 903 | #23 |
| 2009 | 693 | #8 |
| 2025 | 334 | #14 |
Its rank among boys names in Illinois ran from #2 in 1910 to #26 in 1995, starting at #2 in 1910 and ending at #14 in 2025.
No year in Illinois had more William births than 1947, when 3,679 were born. Its highest rank among boys names in Illinois was #2, in 1910.
Its highest rank in any state was #1, in North Carolina in 1998. See William in every state →
How popular is William in Illinois?
Babies born in Illinois have been named William 201,081 times in years with 5 or more births, the first being 1910. In 2025 it was the #14 most common boys name there, on 334 births.
How many babies are named William in Illinois?
In 2025, 334 babies born in Illinois were named William.
What is the rank of William in Illinois?
In 2025, William sat at #14 on the boys list for Illinois.
Source: U.S. Social Security Administration, names by state of birth (public domain). Counts below 5 in a state-year are omitted by the SSA for privacy.