Boys' name · since 1880
Delos
Delos has 1,324 recorded births since 1880 in federal Social Security data, most heavily in 1923 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #4,302 of 45,481
- all-time among boys
- 1,324
- born since 1880
- 1920s
- peak decade
1,324 boys have been named Delos since 1880, though it isn't currently a top-ranked name.
Social Security Administration records show Delos recorded 1,324 times among boys since 1880, though it doesn't currently rank among the most-used boys names, peaking in the 1920s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1880 to 2020.
- #4,302 of 45,481 all-time among boys
- 1,324 born since 1880
- 1920s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Delos ranks #4,302 of 45,481 boys' names by all-time recorded births (highest first). 1,324 born since 1880, peaking in the 1920s.
- #4,302 of 45,481
- all-time among boys
- 1,324
- born since 1880
- 1920s
- peak decade
Delos's 1,324 recorded births place it above 90.53% of the 45,481 boys names in the full SSA archive.
8 jurisdictions carry state-level records, led by Michigan.
Delos's usage pattern, beyond the headline number
Splitting Delos's full recorded timeline at 1934, 37% of its total births fall in the more recent half of the record versus 63% in the earlier half -- the name was more prevalent in its earlier era than it is today. Its quietest year on record was 1884, with just 5 recorded births -- worth weighing against the 1923 peak of 49 to see the full range of the name's swing in popularity.
Delos popularity over time
Annual U.S. births registered with the Social Security Administration · 1880–2020
- Peak year (1923)
- 49
- Annual births at peak, across 141 years of records
Delos by decade
1920s is the heaviest window (365 births, 28% of the file).
1920s was Delos's strongest decade.
365 babies received the name during that ten-year window, about 28% of all-time use.
Delos births by decade
Total births in each ten-year window
- 1880s 30
1880s
30 births
- 1890s 35
1890s
35 births
- 1900s 32
1900s
32 births
- 1910s
1910s
249 births
- 1920s
1920s
365 births
- 1930s
1930s
262 births
- 1940s 144
1940s
144 births
- 1950s 115
1950s
115 births
- 1960s 50
1960s
50 births
- 1970s 14
1970s
14 births
- 1980s 11
1980s
11 births
- 1990s 6
1990s
6 births
- 2010s 6
2010s
6 births
- 2020s 5
2020s
5 births
What this shows Peak: 1920s at 365 births (28% of all-time use).
How Delos 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 Delos's total volume
Delos by state
Where Delos concentrates geographically, total births since 1880
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Michigan | | 38 | 2.9% |
| #2 | New York | | 31 | 2.3% |
| #3 | Wisconsin | | 23 | 1.7% |
| #4 | Iowa | | 22 | 1.7% |
| #5 | Louisiana | | 12 | 0.9% |
| #6 | Illinois | | 6 | 0.5% |
| #7 | Indiana | | 5 | 0.4% |
| #8 | Minnesota | | 5 | 0.4% |
38 of 1,324 births nationwide. Compared to a flat distribution across 8 reporting states.
Frequently Asked Questions
How popular is the name Delos? ▼
Where does Delos sit in the SSA name archive? ▼
When was Delos most popular? ▼
Where is Delos most popular? ▼
How long has the name Delos been used? ▼
What names are similar to Delos? ▼
What to do with Delos's data
- Delos's decade-level peak was the 1920s (365 total births); usage has since declined to 5 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Michigan records the most Deloss (38 births) -- see the full state breakdown if geography matters to your decision. Michigan names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Delos
Nearby Names Like Delos
Names with a similar sound, spelling, or feel to Delos
Compare Delos side by side: Delos vs Delbert Delos vs Delmar Delos vs Delmer
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Delos: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1923)
Similar record span (~140 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, 1880–2020 (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 Delos 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.