Boys name · Illinois
Declan in Illinois
Babies born in Illinois have been named Declan 2,986 times in years with 5 or more births, the first being 1992. In 2025 it was the #123 most common boys name there, on 94 births.
Popularity over time
Declan in Illinois, year by year
| Year | Babies | State rank |
|---|---|---|
| 1992 | 6 | #980 |
| 1997 | 11 | #681 |
| 2001 | 42 | #307 |
| 2006 | 67 | #223 |
| 2011 | 123 | #125 |
| 2016 | 155 | #101 |
| 2020 | 148 | #89 |
| 2025 | 94 | #123 |
Its rank among boys names in Illinois ran from #71 in 2018 to #1124 in 1993, starting at #980 in 1992 and ending at #123 in 2025.
No year in Illinois had more Declan births than 2018, when 187 were born. Its highest rank among boys names in Illinois was #71, in 2018.
Its highest rank in any state was #22, in Wyoming in 2018. See Declan in every state →
How popular is Declan in Illinois?
Babies born in Illinois have been named Declan 2,986 times in years with 5 or more births, the first being 1992. In 2025 it was the #123 most common boys name there, on 94 births.
How many babies are named Declan in Illinois?
In 2025, 94 babies born in Illinois were named Declan.
What is the rank of Declan in Illinois?
In 2025, Declan sat at #123 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.
The same name elsewhere