Boys name · California
Rex in California
In SSA data for California, 4,513 babies are named Rex across years with 5 or more births, starting in 1913. In the latest year, 2025, it ranked as the #695 most popular boys name, with 40 born.
Popularity over time
Rex in California, year by year
| Year | Babies | State rank |
|---|---|---|
| 1913 | 11 | #156 |
| 1929 | 21 | #224 |
| 1945 | 37 | #249 |
| 1961 | 96 | #253 |
| 1977 | 27 | #526 |
| 1993 | 32 | #682 |
| 2009 | 42 | #663 |
| 2025 | 40 | #695 |
The most Rex births in California in a single year was 108, in 1956. Rex's highest rank in California was #154, set in 1920.
Its rank among boys names in California ran from #154 in 1920 to #1045 in 2001, starting at #156 in 1913 and ending at #695 in 2025.
Nationally, Rex's strongest state was Utah, where it hit #39 in 1914. See Rex in every state →
How popular is Rex in California?
In SSA data for California, 4,513 babies are named Rex across years with 5 or more births, starting in 1913. In the latest year, 2025, it ranked as the #695 most popular boys name, with 40 born.
How many babies are named Rex in California?
California recorded 40 births of babies named Rex in 2025.
What is the rank of Rex in California?
Rex ranked #695 among boys names in California 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.
The same name elsewhere