Isaias
Boy name · #426 in 2025 · Uniqueness 48/100
Isaias is currently the #426 boy name in the United States — 755 babies received it in 2025. A decade ago it stood at #551, so the name has been rising over the past ten years. Roughly one in every 2,384 boys born in 2025 was named Isaias.
Babies named Isaias per year, 1880–2025. Source: SSA.
The 110-year story
Isaias first appears in the Social Security records in 1915, when 6 boys received the name. Its all-time peak is essentially right now: 2025, with 755 babies and a rank of #426. Names at their peak can keep climbing — or be one trend cycle from the long slide that eventually hits most popular names. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Unlock the 5-year forecast and compare Isaias against up to 5 other names.
Uniqueness: will there be another Isaias in class?
Isaias scores 48 out of 100 on our uniqueness scale, which blends current rarity with five-year momentum — putting it in the "distinctive" band. That middle band is the sweet spot many parents hunt for: recognizable without being everywhere.
Where Isaias is most common
Geography matters for names, and Isaias is no exception. In 2025 the states with the most Isaiass were TX (181), CA (138), FL (41), IL (28), NY (26). Raw counts naturally favor populous states, but the spread still hints at where the name is part of the local naming culture.
Names like Isaias
Statistically, parents drawn to Isaias tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Matthias, Mathias, Josias, Tobias, and Jeremias.
MatthiasMathiasJosiasTobiasJeremiasMattiasSylasDallas
Rank history (last 25 years)
| Year | Babies named Isaias | Rank |
|---|---|---|
| 2025 | 755 | #426 |
| 2024 | 704 | #449 |
| 2023 | 705 | #441 |
| 2022 | 676 | #455 |
| 2021 | 600 | #491 |
| 2020 | 632 | #472 |
| 2019 | 580 | #494 |
| 2018 | 550 | #515 |
| 2017 | 508 | #547 |
| 2016 | 541 | #538 |
| 2015 | 520 | #551 |
| 2014 | 500 | #550 |
| 2013 | 499 | #533 |
| 2012 | 513 | #513 |
| 2011 | 475 | #538 |
| 2010 | 526 | #494 |
| 2009 | 569 | #481 |
| 2008 | 551 | #497 |
| 2007 | 521 | #508 |
| 2006 | 480 | #530 |
| 2005 | 475 | #518 |
| 2004 | 486 | #503 |
| 2003 | 382 | #577 |
| 2002 | 401 | #550 |
| 2001 | 435 | #518 |
Frequently asked questions
Is Isaias a popular boy name?
Isaias ranked #426 among boys in 2025 with 755 babies given the name — inside the top 500: established but not ubiquitous. Ten years earlier it ranked #551.
When was the name Isaias most popular?
Isaias peaked in 2025, when 755 American boys received the name (ranked #426 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Isaias?
In 2025, roughly 1 in 2,384 newborn American boys was named Isaias. It scores 48/100 on our uniqueness scale (rarity blended with momentum), which we classify as "distinctive".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.