Boys name · Illinois
Sebastian in Illinois
Sebastian was the 10th most popular boys name in Illinois in 2025, with 360 babies named Sebastian that year. Since 1915, Illinois families have named 9,476 babies Sebastian.
Popularity over time
Sebastian in Illinois, year by year
| Year | Babies | State rank |
|---|---|---|
| 1915 | 5 | 545th |
| 1963 | 5 | 795th |
| 1976 | 6 | 845th |
| 1986 | 15 | 495th |
| 1995 | 71 | 202nd |
| 2005 | 252 | 77th |
| 2015 | 435 | 22nd |
| 2025 | 360 | 10th |
Its rank among boys names in Illinois climbed from 545th in 1915 to 10th in 2025.
The most babies named Sebastian in Illinois in a single year was 454, in 2016. Its best showing was 10th among boys names in 2022.
Across the country, Sebastian reached its best rank of 2nd in California (2017). See Sebastian in every state →
How popular is Sebastian in Illinois?
Sebastian was the 10th most popular boys name in Illinois in 2025, with 360 babies named Sebastian that year. Since 1915, Illinois families have named 9,476 babies Sebastian.
How many babies are named Sebastian in Illinois?
In 2025, 360 babies were named Sebastian in Illinois. The most babies named Sebastian in Illinois in a single year was 454, in 2016.
What is the rank of Sebastian in Illinois?
Sebastian ranked 10th among boys names in Illinois in 2025. Its best showing was 10th among boys names in 2022.
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