Girls' name · since 1940
Sidnee
Sidnee has 636 recorded births since 1940 in federal Social Security data, most heavily in 1999 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #10,154 of 72,339
- all-time among girls
- 636
- born since 1940
- 2000s
- peak decade
Sidnee sits outside today's top ranks for girls, with 636 recorded since 1940.
Social Security Administration records show Sidnee recorded 636 times among girls since 1940, though it doesn't currently rank among the most-used girls names, peaking in the 2000s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1940 to 2019.
- #10,154 of 72,339 all-time among girls
- 636 born since 1940
- 2000s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Sidnee ranks #10,154 of 72,339 girls' names by all-time recorded births (highest first). 636 born since 1940, peaking in the 2000s.
- #10,154 of 72,339
- all-time among girls
- 636
- born since 1940
- 2000s
- peak decade
Sidnee's 636 recorded births place it above 85.96% of the 72,339 girls names in the full SSA archive.
The state file records this name in 4 jurisdictions, led by California.
Sidnee's usage pattern, beyond the headline number
Sidnee splits its recorded history at 2001: 52% of all births land in the more recent half, 48% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1941 (5 births) -- compare that against the 1999 peak of 39 for a sense of just how much the name's popularity has swung.
Sidnee popularity over time
Annual U.S. births registered with the Social Security Administration · 1940–2019
- Peak year (1999)
- 39
- Annual births at peak, across 80 years of records
Sidnee by decade
2000s is the heaviest window (284 births, 45% of the file).
2000s was Sidnee's strongest decade.
284 babies received the name during that ten-year window, about 45% of all-time use.
Sidnee births by decade
Total births in each ten-year window
- 1940s 11
1940s
11 births
- 1950s 6
1950s
6 births
- 1980s 20
1980s
20 births
- 1990s
1990s
234 births
- 2000s
2000s
284 births
- 2010s 81
2010s
81 births
What this shows Peak: 2000s at 284 births (45% of all-time use).
How Sidnee compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Sidnee's total volume
Sidnee by state
Where Sidnee concentrates geographically, total births since 1940
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 11 | 1.7% |
| #2 | Ohio | | 11 | 1.7% |
| #3 | Texas | | 5 | 0.8% |
| #4 | Utah | | 5 | 0.8% |
11 of 636 births nationwide. Compared to a flat distribution across 4 reporting states.
Frequently Asked Questions
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What to do with Sidnee's data
- Sidnee's decade-level peak was the 2000s (284 total births); usage has since declined to 81 in the 2010s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Sidnees (11 births) -- see the full state breakdown if geography matters to your decision. California names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Sidnee
Nearby Names Like Sidnee
Names with a similar sound, spelling, or feel to Sidnee
Compare Sidnee side by side: Sidnee vs Sidney Sidnee vs Sidra Sidnee vs Siddhi
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Sidnee: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1999)
Similar record span (~79 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, 1940–2019 (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 Sidnee 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.