Total births
636
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.
- 636
- total births
- 1940–2019
- years on record
- 2000s
- peak decade
- 45%
- born in that 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.
- 636 total births
- 1940–2019 years on record
- 2000s peak decade
- 45% born in that decade
Data updated Jun 2026
The verdict
636 girls have been named Sidnee since 1940, peaking in the 2000s, last recorded in 2019.
- 636
- total births
- 1940–2019
- years on record
- 2000s
- peak decade
- 45%
- born in that decade
2000s
Peak decade
45% of everyone ever named Sidnee was born in this single decade.
1999
Single peak year
39 babies were named Sidnee in 1999 - its busiest year on record.
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 at a glance
Last recorded 2019Peak year
1999
Current rank
Unranked
Active since
1940
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
Total births in each ten-year window, peak vs trough at a glance
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 vs 15 similarly-sized girls names
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% |
California share of Sidnee's total US births 1.7%
Even split
11 of 636 births nationwide. Compared to a flat distribution across 4 reporting states.
Frequently Asked Questions
How popular is the name Sidnee? ▼
Since 1940, Social Security records show 636 babies named Sidnee. The most recent recorded year was 2019. Its busiest year on record was 1999, with 39 births.
When was Sidnee most popular? ▼
Sidnee was most popular in the 2000s decade with 284 total births. The single peak year was 1999.
Where is Sidnee most popular? ▼
The top states for the name Sidnee are California (11 births), Ohio (11 births), Texas (5 births).
How long has the name Sidnee been used? ▼
Records for Sidnee go back to 1940, giving 80 years of history through 2019.
What names are similar to Sidnee? ▼
Names with a similar sound or spelling include Sidney, Sidra, Siddhi, Sidonia, and 4 more. These share a common prefix and are also used for girls.
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
- Weighing it against an alternative? Put two names side by side. Compare 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
Sidney Girl
#1732 24,785 births
Sidra Girl
#1639 1,883 births
Siddhi Girl
#7110 400 births
Sidonia Girl
398 births
Sidrah Girl
#7409 374 births
Compare Sidnee side by side: Sidnee vs Sidney Sidnee vs Sidra Sidnee vs Siddhi
Related Names
Names with a similar number of total births
Data Sources
Data as of June 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).
Cite this page
NameAlmanac Editorial. "Sidnee: Baby Name Since 1940 - 636 Births, Peak 1999." NameAlmanac. Accessed via https://namealmanac.com/name/sidnee. Licensed CC BY-SA 4.0.
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 June 2026.