Total births
18,644
Boys' name · since 1915
Isaias
Since 1915, U.S. Social Security records show 18,644 babies named Isaias, peaking in 2025. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #449
- among boys today
- 18,644
- born since 1915
- 2010s
- peak decade
- 97%
- more common than other boys
Isaias currently ranks #449 among boys' names in America, with 18,644 babies recorded since 1915.
Social Security Administration records show Isaias recorded 18,644 times among boys since 1915, holding rank #449 nationally today, ahead of 97% of boys, peaking in the 2010s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1915 to 2025.
- #449 among boys today
- 18,644 born since 1915
- 2010s peak decade
- 97% more common than other boys
Data updated Jun 2026
The verdict
Isaias is currently the #449 boys' name in America, more common than 97% of boys - 18,644 born since 1915, peaking in the 2010s.
- #449
- among boys today
- 18,644
- born since 1915
- 2010s
- peak decade
- 97%
- more common than other boys
Isaias vs. every other boys name in current SSA rankings
#449
of 14,294 boys in use
More common than 97% of names given to boys today.
2010s
Peak decade
28% of everyone ever named Isaias was born in this single decade.
2025
Single peak year
755 babies were named Isaias in 2025 - its busiest year on record.
How Isaias compares
18,644 Top 6% higher than 94% 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
Isaias's all-time total is 51x the median boys name, and Liam still leads by a wide margin.
| Metric | Isaias | Median boys name (Elchonon) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 18,644 | 367 | 358,536 |
| Peak-year births | 755 | 23 | 22,252 |
Isaias's usage pattern, beyond the headline number
Splitting Isaias's full recorded timeline at 1972, 95% of its total births fall in the more recent half of the record versus 5% in the earlier half -- usage has skewed toward the present, not a one-decade spike. Its quietest year on record was 1915, with just 6 recorded births -- worth weighing against the 2025 peak of 755 to see the full range of the name's swing in popularity.
Isaias at a glance
Top 1,000 boys' namePeak year
2025
Current rank
#449
Active since
1915
Isaias popularity over time
Annual U.S. births registered with the Social Security Administration · 1915–2025
- Peak year (2025)
- 755
- Annual births at peak, across 111 years of records
Isaias by decade
Total births in each ten-year window, peak vs trough at a glance
2010s was Isaias's strongest decade.
5,212 babies received the name during that ten-year window, about 28% of all-time use.
Isaias births by decade
Total births in each ten-year window
- 1910s 18
1910s
18 births
- 1920s 98
1920s
98 births
- 1930s 144
1930s
144 births
- 1940s 150
1940s
150 births
- 1950s 222
1950s
222 births
- 1960s 242
1960s
242 births
- 1970s 502
1970s
502 births
- 1980s 985
1980s
985 births
- 1990s
1990s
2,335 births
- 2000s
2000s
4,664 births
- 2010s
2010s
5,212 births
- 2020s
2020s
4,072 births
What this shows Peak: 2010s at 5,212 births (28% of all-time use).
How Isaias 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 Isaias's total volume
Isaias vs 15 similarly-sized boys names
Isaias by state
Where Isaias concentrates geographically, total births since 1915
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 4,971 | 26.7% |
| #2 | Texas | | 4,320 | 23.2% |
| #3 | Florida | | 879 | 4.7% |
| #4 | New York | | 796 | 4.3% |
| #5 | Illinois | | 664 | 3.6% |
| #6 | Arizona | | 584 | 3.1% |
| #7 | New Jersey | | 405 | 2.2% |
| #8 | Washington | | 360 | 1.9% |
California share of Isaias's total US births 26.7%
Even split
4,971 of 18,644 births nationwide. Compared to a flat distribution across 37 reporting states.
Isaias appears in 37 states. Explore state details →
Frequently Asked Questions
How popular is the name Isaias? ▼
Isaias has been given to 18,644 babies in the U.S. since 1915, according to SSA data. Among boys, it ranks #449 as of the latest data. 755 babies were born in 2025, its single highest year.
When was Isaias most popular? ▼
Isaias was most popular in the 2010s decade with 5,212 total births. The single peak year was 2025.
Where is Isaias most popular? ▼
The top states for the name Isaias are California (4,971 births), Texas (4,320 births), Florida (879 births).
How long has the name Isaias been used? ▼
Isaias has been recorded in Social Security data since 1915, spanning 111 years of data through 2025.
What names are similar to Isaias? ▼
Names with a similar sound or spelling include Isaac, Isaiah, Isai, Isadore, and 4 more. These share a common prefix and are also used for boys.
What to do with Isaias's data
- Isaias's usage has stayed within range of its 2010s decade-level peak (5,212 total births) through the 2020s (4,072) -- a comparatively stable name, not a fading trend.
- California records the most Isaiass (4,971 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 Isaias
Nearby Names Like Isaias
Names with a similar sound, spelling, or feel to Isaias
Isaac Boy
#41 331,508 births
Isaiah Boy
#56 254,020 births
Isai Boy
#1063 7,340 births
Isadore Boy
#8318 5,714 births
Isaak Boy
#2408 4,271 births
Compare Isaias side by side: Isaias vs Isaac Isaias vs Isaiah Isaias vs Isai
Related Names
Names with a similar popularity rank to Isaias
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, 1915–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Isaias: #449 Boys' Name - 18,644 Births, Peak 2025." NameAlmanac. Accessed via https://namealmanac.com/name/isaias. 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 Isaias 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.