Loucille vs Lou

Side-by-side comparison of Loucille and Lou — popularity rank, total births, peak decade, and historical trends from Social Security Administration data.

Name A

Loucille

Girl name · Rank #15332

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Name B

Lou

Girl name · Rank #2524

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Which name is more popular?

Metric Loucille Lou
Current Rank #15332 #2524
Total Births (all years) 276 34,043
Peak Year 1920 1954
Peak Year Births 18 1,495
Peak Decade 1920ss 1950ss
Gender Girl Girl
First Recorded Year 1902 1880

Births by Decade

Decade Loucille Lou
1880ss — 1,364
1890ss — 1,283
1900ss 17 1,261
1910ss 93 2,550
1920ss 104 3,930
1930ss 39 5,165
1940ss 13 4,722
1950ss — 9,084
1960ss — 3,037
1970ss — 767
1980ss — 177
1990ss — 65
2000ss — 85
2010ss — 255
2020ss 10 298

Recent Annual Births (2014–present)

Year Loucille Lou
2014 — 22
2015 — 29
2016 — 35
2017 — 30
2018 — 39
2019 — 40
2020 — 43
2021 — 54
2022 — 62
2023 5 69
2024 5 70

Data Sources

Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, ssa.gov/oact/babynames.
Source: SSA Annual Name Rankings, 1902–2024.

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