Boys name
Rex
Rex is a boys' name given to 54,971 boys in the United States since 1910, peaking in 1951 with 1,481 births. It has appeared in 48 states, and reached its highest rank of 39th among boys names in Utah in 1914.
Which states favor Rex
Rex by state
Top states by all-time births named Rex. States with a full trend page are linked; the rest show all-time totals from the same SSA data.
| Rank | State | All-time births | Latest |
|---|---|---|---|
| 1 | California | 4,513 | #695 (2025) |
| 2 | Texas | 4,445 | #929 (2025) |
| 3 | Indiana | 3,935 | #614 (2025) |
| 4 | Ohio | 3,215 | #995 (2025) |
| 5 | Michigan | 2,887 | #979 (2025) |
| 6 | Illinois | 2,484 | #996 (2025) |
| 7 | Missouri | 2,178 | #772 (2025) |
| 8 | Kansas | 2,022 | #636 (2022) |
| 9 | Iowa | 2,013 | #547 (2024) |
| 10 | North Carolina | 1,870 | — |
| 11 | Oklahoma | 1,793 | — |
| 12 | Utah | 1,707 | — |
| 13 | Tennessee | 1,637 | — |
| 14 | Alabama | 1,546 | — |
| 15 | Florida | 1,335 | — |
| 16 | Kentucky | 1,296 | — |
| 17 | Nebraska | 1,228 | — |
| 18 | Georgia | 1,221 | — |
| 19 | Pennsylvania | 1,213 | — |
| 20 | Washington | 1,192 | — |
Source: U.S. Social Security Administration (public domain).