Boys name · California
Rex in California
Rex was the 695th most popular boys name in California in 2025, with 40 babies named Rex that year. Since 1913, California families have named 4,513 babies Rex.
Popularity over time
Rex in California, year by year
| Year | Babies | State rank |
|---|---|---|
| 1913 | 11 | 156th |
| 1929 | 21 | 224th |
| 1945 | 37 | 249th |
| 1961 | 96 | 253rd |
| 1977 | 27 | 526th |
| 1993 | 32 | 682nd |
| 2009 | 42 | 663rd |
| 2025 | 40 | 695th |
Its rank among boys names in California fell from 156th in 1913 to 695th in 2025.
The most babies named Rex in California in a single year was 108, in 1956. Its best showing was 154th among boys names in 1920.
Across the country, Rex reached its best rank of 39th in Utah (1914). See Rex in every state →
How popular is Rex in California?
Rex was the 695th most popular boys name in California in 2025, with 40 babies named Rex that year. Since 1913, California families have named 4,513 babies Rex.
How many babies are named Rex in California?
In 2025, 40 babies were named Rex in California. The most babies named Rex in California in a single year was 108, in 1956.
What is the rank of Rex in California?
Rex ranked 695th among boys names in California in 2025. Its best showing was 154th among boys names in 1920.
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