Total births
556
Girls' name · since 1907
Cecillia
Cecillia has 556 recorded births since 1907 in federal Social Security data, most heavily in 2007 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #10329
- among girls today
- 556
- born since 1907
- 2000s
- peak decade
- 42%
- more common than other girls
Yes -- Cecillia is the #10329 most popular girls' name in the U.S. today, with 556 recorded since 1907.
Cecillia has 556 recorded births among girls since 1907, per the U.S. Social Security Administration, ranked #10329 as of the latest data, more common than 42% of girls, busiest in the 2000s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1907 to 2024.
- #10329 among girls today
- 556 born since 1907
- 2000s peak decade
- 42% more common than other girls
Data updated Jun 2026
The verdict
Cecillia is currently the #10329 girls' name in America, more common than 42% of girls - 556 born since 1907, peaking in the 2000s.
- #10329
- among girls today
- 556
- born since 1907
- 2000s
- peak decade
- 42%
- more common than other girls
Cecillia vs. every other girls name in current SSA rankings
#10329
of 17,726 girls in use
More common than 42% of names given to girls today.
2000s
Peak decade
21% of everyone ever named Cecillia was born in this single decade.
2007
Single peak year
20 babies were named Cecillia in 2007 - its busiest year on record.
How Cecillia compares
556 Top 43% higher than 57% of 17,726 names currently given to girls
Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Cecillia's all-time total is 46% above the median girls name, and Olivia still leads by a wide margin.
| Metric | Cecillia | Median girls name (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 556 | 382 | 567,345 |
| Peak-year births | 20 | 48 | 19,840 |
Cecillia's usage pattern, beyond the headline number
Cecillia splits its recorded history at 1993: 60% of all births land in the more recent half, 40% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1907 (5 births) -- compare that against the 2007 peak of 20 for a sense of just how much the name's popularity has swung.
Cecillia at a glance
Outside the top 1,000Peak year
2007
Current rank
#10,329
Active since
1907
Cecillia popularity over time
Annual U.S. births registered with the Social Security Administration · 1907–2024
- Peak year (2007)
- 20
- Annual births at peak, across 118 years of records
Cecillia by decade
Total births in each ten-year window, peak vs trough at a glance
2000s was Cecillia's strongest decade.
119 babies received the name during that ten-year window, about 21% of all-time use.
Cecillia births by decade
Total births in each ten-year window
- 1900s 5
1900s
5 births
- 1910s 5
1910s
5 births
- 1920s 6
1920s
6 births
- 1940s 11
1940s
11 births
- 1950s 44
1950s
44 births
- 1960s 27
1960s
27 births
- 1970s 25
1970s
25 births
- 1980s
1980s
74 births
- 1990s
1990s
88 births
- 2000s
2000s
119 births
- 2010s
2010s
108 births
- 2020s 44
2020s
44 births
What this shows Peak: 2000s at 119 births (21% of all-time use).
How Cecillia 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 Cecillia's total volume
Cecillia vs 15 similarly-sized girls names
Cecillia by state
Where Cecillia concentrates geographically, total births since 1907
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Illinois | | 5 | 0.9% |
Illinois share of Cecillia's total US births 0.9%
5 of 556 births nationwide.
Frequently Asked Questions
How popular is the name Cecillia? ▼
Since 1907, Social Security records show 556 babies named Cecillia. Today it holds rank #10329 among girls. Its busiest year on record was 2007, with 20 births.
When was Cecillia most popular? ▼
Cecillia was most popular in the 2000s decade with 119 total births. The single peak year was 2007.
Where is Cecillia most popular? ▼
The top states for the name Cecillia are Illinois (5 births).
How long has the name Cecillia been used? ▼
The SSA has tracked Cecillia since 1907 -- 118 years through the most recent 2024 data.
What names are similar to Cecillia? ▼
Names with a similar sound or spelling include Cecilia, Cecelia, Cecile, Cecily, and 4 more. These share a common prefix and are also used for girls.
What to do with Cecillia's data
- Cecillia's usage has stayed within range of its 2000s decade-level peak (119 total births) through the 2020s (44) -- a comparatively stable name, not a fading trend.
- Illinois records the most Cecillias (5 births) -- see the full state breakdown if geography matters to your decision. Illinois 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 Cecillia
Nearby Names Like Cecillia
Names with a similar sound, spelling, or feel to Cecillia
Cecilia Girl
#123 111,511 births
Cecelia Girl
#570 60,519 births
Cecile Girl
#5616 20,421 births
Cecily Girl
#1602 8,673 births
Cecil Girl
7,687 births
Compare Cecillia side by side: Cecillia vs Cecilia Cecillia vs Cecelia Cecillia vs Cecile
Related Names
Names with a similar popularity rank to Cecillia
Liane #10328
3,879 births · Peak 1959
Olimpia #10330
420 births · Peak 1990
Valena #10327
684 births · Peak 2025
Rosanne #10331
14,747 births · Peak 1954
Providence #10326
724 births · Peak 1924
Audria #10332
1,331 births · Peak 1967
Feliciana #10325
588 births · Peak 1927
Dominica #10333
2,338 births · Peak 1979
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, 1907–2024 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Cecillia: #10329 Girls' Name - 556 Births, Peak 2007." NameAlmanac. Accessed via https://namealmanac.com/name/cecillia. 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 Cecillia 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.