Boys name · Illinois
Dennis in Illinois
Dennis was the 649th most popular boys name in Illinois in 2025, with 14 babies named Dennis that year. Since 1910, Illinois families have named 37,410 babies Dennis.
Popularity over time
Dennis in Illinois, year by year
| Year | Babies | State rank |
|---|---|---|
| 1910 | 5 | 195th |
| 1926 | 32 | 200th |
| 1943 | 1,222 | 14th |
| 1959 | 894 | 28th |
| 1976 | 235 | 62nd |
| 1992 | 111 | 143rd |
| 2009 | 38 | 332nd |
| 2025 | 14 | 649th |
Its rank among boys names in Illinois fell from 195th in 1910 to 649th in 2025.
The most babies named Dennis in Illinois in a single year was 1,633, in 1946. Its best showing was 11th among boys names in 1946.
Across the country, Dennis reached its best rank of 2nd in Hawaii (1944). See Dennis in every state →
How popular is Dennis in Illinois?
Dennis was the 649th most popular boys name in Illinois in 2025, with 14 babies named Dennis that year. Since 1910, Illinois families have named 37,410 babies Dennis.
How many babies are named Dennis in Illinois?
In 2025, 14 babies were named Dennis in Illinois. The most babies named Dennis in Illinois in a single year was 1,633, in 1946.
What is the rank of Dennis in Illinois?
Dennis ranked 649th among boys names in Illinois in 2025. Its best showing was 11th among boys names in 1946.
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.