Boys name · Illinois
Alonzo in Illinois
As of 2025, Alonzo was the #364 most common boys name in Illinois, drawn from 29 births that year. Its total reaches 2,499 across years with 5 or more births, the first being 1912.
Popularity over time
Alonzo in Illinois, year by year
| Year | Babies | State rank |
|---|---|---|
| 1912 | 5 | #330 |
| 1931 | 10 | #321 |
| 1948 | 24 | #265 |
| 1963 | 23 | #353 |
| 1979 | 36 | #280 |
| 1994 | 24 | #447 |
| 2010 | 37 | #335 |
| 2025 | 29 | #364 |
Rank swung between #254 (1962) and #625 (2001) in Illinois, from #330 in 1912 to #364 in 2025.
No year in Illinois had more Alonzo births than 2019, when 47 were born. Its highest rank among boys names in Illinois was #254, in 1962.
Its highest rank in any state was #72, in West Virginia in 1910. See Alonzo in every state →
How popular is Alonzo in Illinois?
As of 2025, Alonzo was the #364 most common boys name in Illinois, drawn from 29 births that year. Its total reaches 2,499 across years with 5 or more births, the first being 1912.
How many babies are named Alonzo in Illinois?
29 Alonzo babies were born in Illinois in 2025.
What is the rank of Alonzo in Illinois?
Alonzo ranked #364 among boys names in Illinois in 2025.
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.