Marilou
Marilou was last recorded in 2024, when 8 babies were given it; 3,231 Americans have been recorded with it between 1915 and 2024 (Social Security Administration, published May 2026).
An estimated 1,790 Americans named Marilou and born in the U.S. are alive in 2026 (56% of everyone recorded); the median is 71 years old and half are between 57 and 78.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Marilou by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Marilou mean?
Wiktionary, English section
Marilou is “a female given name from French.”
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Marilou?
Unranked in 2025
Its last girls’ rank on record is #11,768, in 2024; SSA lists a name only in years with 5 or more births.
90 babies in 1948, the peak
Marilou peaked in 1948, when 90 girls were given it, #917 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2024 | 8 | #11,768 | 4.9 |
| 2023 | 6 | #14,538 | 3.7 |
| 2022 | 5 | #16,847 | 3.0 |
| 2021 | 5 | #16,822 | 3.0 |
| 2020 | 8 | #11,751 | 4.9 |
| 2019 | 5 | #17,119 | 3.0 |
| 2018 | 9 | #11,116 | 5.3 |
| 2017 | 5 | #17,510 | 2.9 |
| 2016 | 5 | #17,901 | 2.8 |
| 2013 | 8 | #12,736 | 4.6 |
Every recorded year (101)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2012 | 6 | #16,178 | 3.4 |
| 2011 | 5 | #18,546 | 2.8 |
| 2008 | 8 | #13,361 | 4.2 |
| 2007 | 6 | #16,822 | 3.1 |
| 2004 | 8 | #12,331 | 4.4 |
| 2002 | 10 | #9,980 | 5.6 |
| 2001 | 7 | #12,935 | 3.9 |
| 2000 | 8 | #11,400 | 4.4 |
| 1999 | 5 | #15,935 | 2.8 |
| 1998 | 6 | #13,494 | 3.4 |
| 1997 | 5 | #15,217 | 2.9 |
| 1996 | 14 | #6,602 | 8.0 |
| 1995 | 8 | #10,155 | 4.5 |
| 1994 | 6 | #12,790 | 3.4 |
| 1992 | 8 | #10,080 | 4.3 |
| 1991 | 12 | #7,227 | 6.4 |
| 1990 | 17 | #5,436 | 9.0 |
| 1989 | 10 | #7,809 | 5.4 |
| 1988 | 11 | #6,935 | 6.2 |
| 1987 | 8 | #8,450 | 4.6 |
| 1986 | 7 | #9,158 | 4.1 |
| 1985 | 18 | #4,374 | 10.5 |
| 1984 | 7 | #8,745 | 4.2 |
| 1983 | 16 | #4,598 | 9.6 |
| 1981 | 15 | #4,863 | 9.0 |
| 1980 | 14 | #5,133 | 8.4 |
| 1979 | 15 | #4,765 | 9.3 |
| 1978 | 11 | #5,809 | 7.2 |
| 1977 | 11 | #5,735 | 7.2 |
| 1976 | 11 | #5,437 | 7.5 |
| 1975 | 17 | #3,876 | 11.7 |
| 1974 | 8 | #6,612 | 5.5 |
| 1973 | 15 | #4,087 | 10.3 |
| 1972 | 12 | #4,681 | 7.9 |
| 1971 | 19 | #3,447 | 11.4 |
| 1970 | 24 | #2,902 | 13.7 |
| 1969 | 14 | #3,893 | 8.3 |
| 1968 | 21 | #2,835 | 12.8 |
| 1967 | 14 | #3,584 | 8.5 |
| 1966 | 16 | #3,218 | 9.5 |
| 1965 | 26 | #2,381 | 14.7 |
| 1964 | 29 | #2,282 | 15.3 |
| 1963 | 36 | #1,969 | 18.7 |
| 1962 | 35 | #1,971 | 17.8 |
| 1961 | 46 | #1,689 | 22.8 |
| 1960 | 58 | #1,449 | 28.7 |
| 1959 | 44 | #1,659 | 21.7 |
| 1958 | 64 | #1,325 | 31.8 |
| 1957 | 66 | #1,313 | 32.3 |
| 1956 | 65 | #1,295 | 32.4 |
| 1955 | 61 | #1,299 | 31.2 |
| 1954 | 73 | #1,173 | 37.6 |
| 1953 | 81 | #1,072 | 43.1 |
| 1952 | 85 | #1,019 | 45.8 |
| 1951 | 79 | #1,045 | 43.9 |
| 1950 | 79 | #1,031 | 46.1 |
| 1949 | 87 | #960 | 50.9 |
| 1948 | 90 | #917 | 53.0 |
| 1947 | 79 | #997 | 44.6 |
| 1946 | 69 | #1,021 | 43.9 |
| 1945 | 74 | #878 | 56.6 |
| 1944 | 77 | #872 | 58.0 |
| 1943 | 60 | #1,032 | 43.0 |
| 1942 | 72 | #924 | 53.3 |
| 1941 | 60 | #954 | 49.7 |
| 1940 | 61 | #921 | 53.3 |
| 1939 | 42 | #1,122 | 38.3 |
| 1938 | 55 | #962 | 49.8 |
| 1937 | 66 | #852 | 62.0 |
| 1936 | 50 | #975 | 48.1 |
| 1935 | 61 | #889 | 58.2 |
| 1934 | 75 | #779 | 71.8 |
| 1933 | 73 | #778 | 72.4 |
| 1932 | 66 | #857 | 61.8 |
| 1931 | 50 | #989 | 47.0 |
| 1930 | 80 | #792 | 71.1 |
| 1929 | 63 | #907 | 56.4 |
| 1928 | 70 | #877 | 60.7 |
| 1927 | 81 | #812 | 67.9 |
| 1926 | 46 | #1,125 | 38.8 |
| 1925 | 29 | #1,561 | 23.8 |
| 1924 | 31 | #1,522 | 24.8 |
| 1923 | 19 | #2,066 | 15.7 |
| 1922 | 16 | #2,354 | 13.3 |
| 1921 | 11 | #3,083 | 8.9 |
| 1920 | 10 | #3,258 | 8.3 |
| 1919 | 22 | #1,788 | 19.5 |
| 1918 | 16 | #2,257 | 13.8 |
| 1917 | 8 | #3,579 | 7.4 |
| 1916 | 8 | #3,445 | 7.7 |
| 1915 | 10 | #2,827 | 10.2 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Marilou a boy’s or a girl’s name?
Marilou has been recorded only for girls: SSA lists no boys with the name in 101 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Marilou: the SSA national file counts each sex separately.
How many people are named Marilou, and how old are they?
1,790 alive in 2026, estimated
That is 56% of the 3,231 Americans ever recorded as Marilou. The median Marilou alive today is 71 years old; half are between 57 and 78.
The 2020 Census counted 5,888 people named Marilou (5,881 women and girls, 7 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 2,093 born in the U.S. The Census count is 2.8 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Silent Generation | 1928-1945 | 341 |
| Baby Boomers | 1946-1964 | 928 |
| Generation X | 1965-1980 | 229 |
| Millennials | 1981-1996 | 153 |
| Generation Z | 1997-2012 | 73 |
| Generation Alpha | 2013-2025 | 64 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Marilou born?
The states with the most babies named Marilou are California, Ohio and Illinois, with 47% of its births recorded by state since 1910.
| State | Since 1910 | Rank, girls | vs. national |
|---|---|---|---|
| California | 220 | not ranked | 1.0× |
| Ohio | 208 | not ranked | 1.3× |
| Illinois | 205 | not ranked | 1.2× |
| New York | 182 | not ranked | 0.7× |
| Pennsylvania | 175 | not ranked | 0.8× |
| Michigan | 111 | not ranked | 0.8× |
| Indiana | 98 | not ranked | 1.2× |
| Washington | 47 | not ranked | 1.0× |
| Texas | 18 | not ranked | 0.1× |
| Massachusetts | 12 | not ranked | 0.1× |
Where Marilou is more common than its national share predicts
Relative to its national share, Marilou is most over-represented in Ohio: since 1915 it was given 1.3 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among girls’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Marilou with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 8 names spelled alike, given to 39,609 babies since 1880, Marilou is the fourth most given (8.2% of them). In 2025 none of their 283 babies recorded by SSA was a Marilou (SSA lists a name only with 5 or more babies of one sex).
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Marilou
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Marilou and names like it
- Compare Marilou and MarylouBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1940sMarilou peaked in 1948.
- California’s most given namesThe state where SSA recorded the most babies named Marilou since 1910.
- French namesWiktionary’s origin for Marilou: every such name, by how often it is given.
- The top names of 1948The year the most babies were named Marilou.
- The names of the Baby BoomersMost people named Marilou alive today were born 1946-1964.
- Names starting with MMost given first.