Cillian in Illinois
Babies in Illinois
191
since 2010
Rank in Illinois · 2025
#363
recorded as boys
Peak year in Illinois
2025
Babies per 1,000 (same sex) in Illinois, 1910–2025
Recorded as boys
US overall
Yearly share of babies named Cillian in Illinois from 1910 to 2025, compared with the national share (dashed line).
Show every year
| Year | Girls | Rank | Boys | Rank |
|---|---|---|---|---|
| 2025 | <5 | — | 29 | 363 |
| 2024 | <5 | — | 25 | 428 |
| 2023 | <5 | — | 24 | 434 |
| 2022 | <5 | — | 17 | 573 |
| 2021 | <5 | — | 15 | 617 |
| 2020 | <5 | — | 13 | 673 |
| 2019 | <5 | — | 11 | 764 |
| 2018 | <5 | — | 16 | 610 |
| 2017 | <5 | — | 9 | 898 |
| 2016 | <5 | — | 6 | 1,168 |
| 2015 | <5 | — | 6 | 1,185 |
| 2014 | <5 | — | 8 | 983 |
| 2013 | <5 | — | <5 | — |
| 2012 | <5 | — | 6 | 1,192 |
| 2011 | <5 | — | <5 | — |
| 2010 | <5 | — | 6 | 1,214 |