Marilou Girl
How popular is Marilou?
Peaked in 1948
No babies were recorded with the name Marilou in 2025. It was most used in 1948, when 90 girls got the name.
1,897living people named Marilou (est.)
71median age of people named Marilou
3,231babies named Marilou since 1880
Marilou popularity over time
| Rank in 2025 | Not ranked |
|---|---|
| Babies in 2025 | 0 girls |
| 10-year trend | Not used lately |
| Peak year | 1948 (90 girls) |
| Highest rank | #769 in 1933 |
| First recorded | 1915 |
| Boys vs girls (last 10 years) | 0% boys, 100% girls |
Marilou by decade
| Decade | Baby girls | Best rank |
|---|---|---|
| 1910s | 64 | #1,745 |
| 1920s | 376 | #810 |
| 1930s | 618 | #769 |
| 1940s | 729 | #867 |
| 1950s | 697 | #1,016 |
| 1960s | 295 | #1,446 |
| 1970s | 143 | #2,856 |
| 1980s | 106 | #4,280 |
| 1990s | 81 | #5,281 |
| 2000s | 47 | #9,476 |
| 2010s | 43 | #10,540 |
| 2020s | 32 | #11,085 |
Questions
- Is Marilou a boy or girl name?
- Marilou is mostly a girl name. Over the last 10 years, 100% of babies named Marilou were girls.
- How popular is the name Marilou?
- No babies were recorded with the name Marilou in 2025. It was most used in 1948, when 90 girls got the name.
- When was Marilou most popular?
- Marilou peaked in 1948, when 90 girls were given the name. Its highest rank was #769 in 1933.
- How many people are named Marilou?
- 3,231 babies have been named Marilou in the US since 1880. We estimate about 1,897 of them are alive in 2026, with a median age of 71.
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.