Casimiro Boy
How popular is Casimiro?
#10,691 boy name in 2025
6 baby boys were named Casimiro in the US in 2025, making it the 10691st most popular boy name.
619living people named Casimiro (est.)
48median age of people named Casimiro
1,084babies named Casimiro since 1880
1 in 552,557US babies born in 2025
Casimiro popularity over time
| Rank in 2025 | #10,691 for boys |
|---|---|
| Babies in 2025 | 6 boys |
| 10-year trend | New in the last 10 years |
| Peak year | 1921 (28 boys) |
| Highest rank | #780 in 1881 |
| First recorded | 1881 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 0.0% in a class of 25 kids born in 2025 |
Casimiro by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 6 | #780 |
| 1910s | 78 | #1,618 |
| 1920s | 170 | #1,412 |
| 1930s | 113 | #1,528 |
| 1940s | 96 | #1,785 |
| 1950s | 115 | #1,764 |
| 1960s | 98 | #2,042 |
| 1970s | 104 | #2,511 |
| 1980s | 103 | #2,939 |
| 1990s | 73 | #5,088 |
| 2000s | 74 | #5,581 |
| 2010s | 27 | #8,811 |
| 2020s | 27 | #8,161 |
Boy names about as popular as Casimiro
Questions
- Is Casimiro a boy or girl name?
- Casimiro is mostly a boy name. Over the last 10 years, 100% of babies named Casimiro were boys.
- How popular is the name Casimiro?
- 6 baby boys were named Casimiro in the US in 2025, making it the 10691st most popular boy name.
- When was Casimiro most popular?
- Casimiro peaked in 1921, when 28 boys were given the name. Its highest rank was #780 in 1881.
- How many people are named Casimiro?
- 1,084 babies have been named Casimiro in the US since 1880. We estimate about 619 of them are alive in 2026, with a median age of 48.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.