Isiah
Boy name · #1478 in 2025 · Very rare
How old is the name Isiah? In official American birth records, Isiah has been tracked continuously since 1880, giving it 145 years of documented American history.
In 2025, 120 baby boys were named Isiah, placing it at #1478 in the official national rankings. A decade ago it stood at #1089, so the name has been falling over the past ten years. Roughly one in every 15,000 boys born in 2025 was named Isiah.
Babies named Isiah per year. Source: Official national birth records.
The 145-year story
Isiah first appears in the Social Security records in 1880, when 20 boys received the name. Its peak came in 2001, when 822 boys were named Isiah — good for #336 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. 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 Isiah against up to 5 other names.
Uniqueness: will there be another Isiah in class?
On our rarity read — which blends how common Isiah is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Isiah will likely be the only one in the room, with the occasional spelling-out as the price.
Where Isiah is most common
Geography matters for names, and Isiah is no exception. Adjusted for how many boys are born in each state, Isiah is most common in FL (0.1 per 1,000), TX (0.1 per 1,000), CA (0.1 per 1,000) — against a national average of about 0.1 per 1,000 boys. These are per-capita rates, so they show where Isiah is a genuine regional favorite rather than just where the most babies are born.
Names like Isiah
Statistically, parents drawn to Isiah tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Zebadiah, Javon, Jakob, Skylar, and Parth.
ZebadiahJavonJakobSkylarParthKolbyTrentIsidro
Rank history (last 25 years)
| Year | Babies named Isiah | Rank |
|---|---|---|
| 2025 | 120 | #1477 |
| 2024 | 149 | #1308 |
| 2023 | 132 | #1397 |
| 2022 | 141 | #1330 |
| 2021 | 138 | #1339 |
| 2020 | 131 | #1353 |
| 2019 | 157 | #1214 |
| 2018 | 169 | #1139 |
| 2017 | 170 | #1126 |
| 2016 | 197 | #1020 |
| 2015 | 179 | #1089 |
| 2014 | 187 | #1057 |
| 2013 | 266 | #816 |
| 2012 | 293 | #776 |
| 2011 | 366 | #639 |
| 2010 | 424 | #589 |
| 2009 | 497 | #535 |
| 2008 | 635 | #443 |
| 2007 | 627 | #446 |
| 2006 | 730 | #405 |
| 2005 | 742 | #387 |
| 2004 | 712 | #383 |
| 2003 | 734 | #364 |
| 2002 | 746 | #357 |
| 2001 | 822 | #336 |
Frequently asked questions
How old is the name Isiah?
In official American birth records, the name Isiah first appeared in 1880 (over 145 years ago), when 20 newborn boys received the name. It has over a century of continuous American history.
Is Isiah a popular boy name?
Isiah ranked #1478 among boys in 2025 with 120 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1089.
When was the name Isiah most popular?
Isiah peaked in 2001, when 822 American boys received the name (ranked #336 that year). Since 2001 the name has declined from that high.
How rare is the name Isiah?
In 2025, roughly 1 in 15,000 newborn American boys was named Isiah. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.