Isayah
Isayah was given to 8 boys in 2025, #9,223 among boys’ names; 791 Americans have been recorded with it since 1992 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Isayah by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Isayah?
#9,223 among boys’ names, 2025
Isayah fell from #5,372 in 2015 to #9,223 in 2025 among boys’ names; its share of boys born fell from 8.9 to 4.7 per million.
46 babies in 2007, the peak
Isayah peaked in 2007, when 46 boys were given it, #2,663 among boys’ names. The 8 births of 2025 are 17% of that peak.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 8 | #9,223 | 4.7 |
| 2024 | 11 | #7,444 | 6.4 |
| 2023 | 15 | #6,038 | 8.8 |
| 2022 | 20 | #4,910 | 11.5 |
| 2021 | 10 | #7,805 | 5.7 |
| 2020 | 16 | #5,542 | 9.3 |
| 2019 | 14 | #6,215 | 7.8 |
| 2018 | 15 | #5,877 | 8.3 |
| 2017 | 17 | #5,376 | 9.2 |
| 2016 | 23 | #4,383 | 12.1 |
Every recorded year (32)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2015 | 17 | #5,372 | 8.9 |
| 2014 | 33 | #3,328 | 17.2 |
| 2013 | 27 | #3,793 | 14.3 |
| 2012 | 39 | #2,976 | 20.6 |
| 2011 | 44 | #2,717 | 23.2 |
| 2010 | 42 | #2,843 | 21.9 |
| 2009 | 41 | #2,919 | 20.7 |
| 2008 | 45 | #2,727 | 22.1 |
| 2007 | 46 | #2,663 | 22.2 |
| 2006 | 44 | #2,676 | 21.4 |
| 2005 | 44 | #2,538 | 22.0 |
| 2004 | 27 | #3,484 | 13.6 |
| 2003 | 43 | #2,442 | 21.8 |
| 2002 | 26 | #3,387 | 13.4 |
| 2001 | 31 | #2,952 | 16.0 |
| 2000 | 25 | #3,353 | 12.7 |
| 1999 | 19 | #3,893 | 9.9 |
| 1998 | 15 | #4,493 | 7.8 |
| 1997 | 13 | #4,768 | 6.9 |
| 1996 | 10 | #5,701 | 5.3 |
| 1995 | 6 | #8,196 | 3.2 |
| 1992 | 5 | #8,945 | 2.5 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Isayah a boy’s or a girl’s name?
Isayah has been recorded only for boys: SSA lists no girls with the name in 32 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Isayah: the SSA national file counts each sex separately.
How many people are named Isayah, and how old are they?
An estimated 780 Americans named Isayah and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 18 years old and half are between 12 and 22. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 575 people named Isayah (11 women and girls, 564 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 708 born in the U.S. The Census count is 19% below that prediction. Possible reasons: people who give a short form or another name to the Census, and a survival estimate that can run high.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
How common is the spelling Isayah?
Isayah is a less common spelling of Isaiah: SSA has recorded 791 Isayah and 254,710 Isaiah since 1880.
Of these 8 names spelled alike, given to 284,527 babies since 1880, Isayah is the fifth most given (<1% of them). In 2025 it was given to 8 of their 5,435 babies (<1%), again the fifth most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Isayah
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Isayah and names like it
- Compare Isayah and IsaiahBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sIsayah peaked in 2007.
- California’s most given namesThe state where SSA recorded the most babies named Isayah since 1910.
- The top names of 2007The year the most babies were named Isayah.
- The names of Generation ZMost people named Isayah alive today were born 1997-2012.
- Names starting with IMost given first.