Total births
1,123
Boys' name · since 1912
Thadeus
1,123 babies named Thadeus in U.S. Social Security records since 1912, with the highest year being 1918. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #11004
- among boys today
- 1,123
- born since 1912
- 2000s
- peak decade
- 23%
- more common than other boys
Yes -- Thadeus is the #11004 most popular boys' name in the U.S. today, with 1,123 recorded since 1912.
Social Security Administration records show Thadeus recorded 1,123 times among boys since 1912, holding rank #11004 nationally today, ahead of 23% of boys, 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 1912 to 2025.
- #11004 among boys today
- 1,123 born since 1912
- 2000s peak decade
- 23% more common than other boys
Data updated Jun 2026
The verdict
Thadeus is currently the #11004 boys' name in America, more common than 23% of boys - 1,123 born since 1912, peaking in the 2000s.
- #11004
- among boys today
- 1,123
- born since 1912
- 2000s
- peak decade
- 23%
- more common than other boys
Thadeus vs. every other boys name in current SSA rankings
#11004
of 14,294 boys in use
More common than 23% of names given to boys today.
2000s
Peak decade
15% of everyone ever named Thadeus was born in this single decade.
1918
Single peak year
27 babies were named Thadeus in 1918 - its busiest year on record.
How Thadeus compares
1,123 Top 29% higher than 71% of 14,294 names currently given to boys
Based on all-time total births among currently-ranked boys 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
Thadeus's all-time total is 3x the median boys name, and Liam still leads by a wide margin.
| Metric | Thadeus | Median boys name (Elchonon) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 1,123 | 367 | 358,536 |
| Peak-year births | 27 | 23 | 22,252 |
Thadeus's usage pattern, beyond the headline number
Splitting Thadeus's full recorded timeline at 1977, 55% of its total births fall in the more recent half of the record versus 45% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1935, with just 5 recorded births -- worth weighing against the 1918 peak of 27 to see the full range of the name's swing in popularity.
Thadeus at a glance
Outside the top 1,000Peak year
1918
Current rank
#11,004
Active since
1912
Thadeus popularity over time
Annual U.S. births registered with the Social Security Administration · 1912–2025
- Peak year (1918)
- 27
- Annual births at peak, across 114 years of records
Thadeus by decade
Total births in each ten-year window, peak vs trough at a glance
2000s was Thadeus's strongest decade.
173 babies received the name during that ten-year window, about 15% of all-time use.
Thadeus births by decade
Total births in each ten-year window
- 1910s
1910s
116 births
- 1920s
1920s
153 births
- 1930s 27
1930s
27 births
- 1940s 26
1940s
26 births
- 1950s 33
1950s
33 births
- 1960s 48
1960s
48 births
- 1970s
1970s
148 births
- 1980s
1980s
121 births
- 1990s
1990s
160 births
- 2000s
2000s
173 births
- 2010s
2010s
95 births
- 2020s 23
2020s
23 births
What this shows Peak: 2000s at 173 births (15% of all-time use).
How Thadeus compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Thadeus's total volume
Thadeus vs 15 similarly-sized boys names
Thadeus by state
Where Thadeus concentrates geographically, total births since 1912
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Pennsylvania | | 11 | 1.0% |
| #2 | New York | | 6 | 0.5% |
| #3 | Illinois | | 5 | 0.4% |
| #4 | Wisconsin | | 5 | 0.4% |
Pennsylvania share of Thadeus's total US births 1.0%
Even split
11 of 1,123 births nationwide. Compared to a flat distribution across 4 reporting states.
Frequently Asked Questions
How popular is the name Thadeus? ▼
Thadeus has been given to 1,123 babies in the U.S. since 1912, according to SSA data. Among boys, it ranks #11004 as of the latest data. 27 babies were born in 1918, its single highest year.
When was Thadeus most popular? ▼
Thadeus was most popular in the 2000s decade with 173 total births. The single peak year was 1918.
Where is Thadeus most popular? ▼
The top states for the name Thadeus are Pennsylvania (11 births), New York (6 births), Illinois (5 births).
How long has the name Thadeus been used? ▼
Thadeus has been recorded in Social Security data since 1912, spanning 114 years of data through 2025.
What names are similar to Thadeus? ▼
Names with a similar sound or spelling include Thaddeus, Thad, Thatcher, Thane, and 4 more. These share a common prefix and are also used for boys.
What to do with Thadeus's data
- Thadeus's decade-level peak was the 2000s (173 total births); usage has since declined to 23 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Pennsylvania records the most Thadeuss (11 births) -- see the full state breakdown if geography matters to your decision. Pennsylvania 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 Thadeus
Nearby Names Like Thadeus
Names with a similar sound, spelling, or feel to Thadeus
Thaddeus Boy
#852 26,057 births
Thad Boy
#12364 8,219 births
Thatcher Boy
#1040 4,955 births
Thane Boy
#2967 2,604 births
Thayne Boy
#6507 1,450 births
Compare Thadeus side by side: Thadeus vs Thaddeus Thadeus vs Thad Thadeus vs Thatcher
Related Names
Names with a similar popularity rank to Thadeus
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, 1912–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Thadeus: #11004 Boys' Name - 1,123 Births, Peak 1918." NameAlmanac. Accessed via https://namealmanac.com/name/thadeus. 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 Thadeus 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.