Boys name · California
Theo in California
Theo was the 77th most popular boys name in California in 2025, with 484 babies named Theo that year. Since 1960, California families have named 3,939 babies Theo.
Popularity over time
Theo in California, year by year
| Year | Babies | State rank |
|---|---|---|
| 1960 | 5 | 1114th |
| 1976 | 8 | 1052nd |
| 1990 | 9 | 1572nd |
| 1998 | 14 | 1092nd |
| 2004 | 30 | 741st |
| 2011 | 34 | 751st |
| 2018 | 174 | 253rd |
| 2025 | 484 | 77th |
Its rank among boys names in California climbed from 1114th in 1960 to 77th in 2025.
The most babies named Theo in California in a single year was 484, in 2025. Its best showing was 77th among boys names in 2025.
Across the country, Theo reached its best rank of 24th in Hawaii (2022). See Theo in every state →
How popular is Theo in California?
Theo was the 77th most popular boys name in California in 2025, with 484 babies named Theo that year. Since 1960, California families have named 3,939 babies Theo.
How many babies are named Theo in California?
In 2025, 484 babies were named Theo in California. The most babies named Theo in California in a single year was 484, in 2025.
What is the rank of Theo in California?
Theo ranked 77th among boys names in California in 2025. Its best showing was 77th among boys names 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.