Girls' name · since 1934
Nancylou
Since 1934, U.S. Social Security records show 19 babies named Nancylou, peaking in 1934. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #46,584 of 72,339
- all-time among girls
- 19
- born since 1934
- 1940s
- peak decade
Nancylou is not among the current top-ranked girls names; 19 have been recorded since 1934.
According to the U.S. Social Security Administration, Nancylou has been recorded 19 times among girls since 1934, though it is not among the currently most-used girls names, with its heaviest use in the 1940s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1934 to 1941.
- #46,584 of 72,339 all-time among girls
- 19 born since 1934
- 1940s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Nancylou ranks #46,584 of 72,339 girls' names by all-time recorded births (highest first). 19 born since 1934, peaking in the 1940s.
- #46,584 of 72,339
- all-time among girls
- 19
- born since 1934
- 1940s
- peak decade
Nancylou's 19 recorded births place it above 35.39% of the 72,339 girls names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Nancylou's usage pattern, beyond the headline number
Nancylou splits its recorded history at 1940: 58% of all births land in the more recent half, 42% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1941 (5 births) -- compare that against the 1934 peak of 8 for a sense of just how much the name's popularity has swung.
Nancylou popularity over time
Annual U.S. births registered with the Social Security Administration · 1934–1941
- Peak year (1934)
- 8
- Annual births at peak, across 8 years of records
Nancylou by decade
1940s is the heaviest window (11 births, 58% of the file).
1940s was Nancylou's strongest decade.
11 babies received the name during that ten-year window, about 58% of all-time use.
Nancylou births by decade
Total births in each ten-year window
- 1930s
1930s
8 births
- 1940s
1940s
11 births
What this shows Peak: 1940s at 11 births (58% of all-time use).
Frequently Asked Questions
How popular is the name Nancylou? ▼
Where does Nancylou sit in the SSA name archive? ▼
When was Nancylou most popular? ▼
How long has the name Nancylou been used? ▼
What names are similar to Nancylou? ▼
Keep exploring Nancylou
Nearby Names Like Nancylou
Names with a similar sound, spelling, or feel to Nancylou
Compare Nancylou side by side: Nancylou vs Nancy Nancylou vs Nannie Nancylou vs Nanette
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Nancylou: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1934)
Similar record span (~7 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1934–1941 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Nancylou draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.