Boys name · Missouri
Rex in Missouri
Rex was the 772nd most popular boys name in Missouri in 2025, with 7 babies named Rex that year. Since 1910, Missouri families have named 2,178 babies Rex.
Popularity over time
Rex in Missouri, year by year
| Year | Babies | State rank |
|---|---|---|
| 1910 | 5 | 182nd |
| 1926 | 26 | 168th |
| 1940 | 32 | 148th |
| 1955 | 59 | 126th |
| 1969 | 17 | 255th |
| 1984 | 6 | 449th |
| 2009 | 9 | 583rd |
| 2025 | 7 | 772nd |
Its rank among boys names in Missouri fell from 182nd in 1910 to 772nd in 2025.
The most babies named Rex in Missouri in a single year was 59, in 1955. Its best showing was 123rd among boys names in 1922.
Across the country, Rex reached its best rank of 39th in Utah (1914). See Rex in every state →
How popular is Rex in Missouri?
Rex was the 772nd most popular boys name in Missouri in 2025, with 7 babies named Rex that year. Since 1910, Missouri families have named 2,178 babies Rex.
How many babies are named Rex in Missouri?
In 2025, 7 babies were named Rex in Missouri. The most babies named Rex in Missouri in a single year was 59, in 1955.
What is the rank of Rex in Missouri?
Rex ranked 772nd among boys names in Missouri in 2025. Its best showing was 123rd among boys names in 1922.
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