Isaih
Isaih was given to 7 boys in 2025, #10,074 among boys’ names; 1,510 Americans have been recorded with it since 1894 (Social Security Administration, published May 2026).
An estimated 1,340 Americans named Isaih and born in the U.S. are alive in 2026 (89% of everyone recorded); the median is 24 years old and half are between 19 and 29.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Isaih by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Isaih?
#10,074 among boys’ names, 2025
Isaih fell from #4,947 in 2015 to #10,074 in 2025 among boys’ names; its share of boys born fell from 9.9 to 4.1 per million.
74 babies in 1999, the peak
Isaih peaked in 1999, when 74 boys were given it, #1,518 among boys’ names. The 7 births of 2025 are 9% of that peak.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 7 | #10,074 | 4.1 |
| 2023 | 9 | #8,498 | 5.3 |
| 2022 | 10 | #7,981 | 5.7 |
| 2021 | 10 | #7,803 | 5.7 |
| 2020 | 15 | #5,807 | 8.7 |
| 2019 | 11 | #7,341 | 6.1 |
| 2018 | 9 | #8,420 | 5.0 |
| 2017 | 15 | #5,900 | 8.1 |
| 2016 | 11 | #7,324 | 5.8 |
| 2015 | 19 | #4,947 | 9.9 |
Every recorded year (65)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2014 | 19 | #4,942 | 9.9 |
| 2013 | 13 | #6,385 | 6.9 |
| 2012 | 27 | #3,829 | 14.2 |
| 2011 | 42 | #2,822 | 22.1 |
| 2010 | 33 | #3,339 | 17.2 |
| 2009 | 35 | #3,234 | 17.6 |
| 2008 | 48 | #2,602 | 23.5 |
| 2007 | 70 | #2,005 | 33.7 |
| 2006 | 60 | #2,157 | 29.2 |
| 2005 | 55 | #2,190 | 27.5 |
| 2004 | 65 | #1,889 | 32.7 |
| 2003 | 54 | #2,083 | 27.3 |
| 2002 | 67 | #1,727 | 34.5 |
| 2001 | 64 | #1,766 | 32.9 |
| 2000 | 65 | #1,727 | 33.1 |
| 1999 | 74 | #1,518 | 38.5 |
| 1998 | 57 | #1,774 | 29.8 |
| 1997 | 71 | #1,487 | 37.7 |
| 1996 | 45 | #1,963 | 23.8 |
| 1995 | 40 | #2,061 | 21.0 |
| 1994 | 30 | #2,522 | 15.5 |
| 1993 | 30 | #2,469 | 15.3 |
| 1992 | 23 | #2,939 | 11.5 |
| 1991 | 23 | #2,857 | 11.4 |
| 1990 | 38 | #1,984 | 18.5 |
| 1989 | 25 | #2,563 | 12.5 |
| 1988 | 19 | #2,893 | 9.9 |
| 1987 | 10 | #4,373 | 5.4 |
| 1986 | 10 | #4,254 | 5.4 |
| 1985 | 8 | #4,871 | 4.3 |
| 1983 | 6 | #5,768 | 3.3 |
| 1982 | 5 | #6,752 | 2.8 |
| 1964 | 6 | #3,796 | 3.0 |
| 1957 | 8 | #3,126 | 3.7 |
| 1953 | 5 | #4,053 | 2.5 |
| 1951 | 5 | #3,947 | 2.7 |
| 1949 | 6 | #3,497 | 3.4 |
| 1946 | 7 | #3,024 | 4.3 |
| 1945 | 6 | #3,149 | 4.5 |
| 1935 | 5 | #3,905 | 4.8 |
| 1932 | 10 | #2,537 | 9.6 |
| 1929 | 5 | #4,257 | 4.6 |
| 1927 | 7 | #3,622 | 6.2 |
| 1923 | 13 | #2,388 | 11.9 |
| 1922 | 7 | #3,688 | 6.4 |
| 1921 | 8 | #3,345 | 7.3 |
| 1920 | 6 | #4,035 | 5.6 |
| 1919 | 9 | #2,987 | 9.2 |
| 1918 | 10 | #2,778 | 9.9 |
| 1917 | 8 | #3,057 | 8.6 |
| 1915 | 5 | #4,086 | 5.9 |
| 1914 | 10 | #2,179 | 15.3 |
| 1913 | 5 | #3,036 | 9.8 |
| 1912 | 7 | #2,138 | 16.3 |
| 1894 | 5 | #1,164 | 43.2 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Isaih a boy’s or a girl’s name?
Isaih has been recorded only for boys: SSA lists no girls with the name in 65 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Isaih: the SSA national file counts each sex separately.
How many people are named Isaih, and how old are they?
1,340 alive in 2026, estimated
That is 89% of the 1,510 Americans ever recorded as Isaih. The median Isaih alive today is 24 years old; half are between 19 and 29.
The 2020 Census counted 1,744 people named Isaih (10 women and girls, 1,734 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 1,315 born in the U.S. The Census count is 33% above that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Silent Generation | 1928-1945 | 4 |
| Baby Boomers | 1946-1964 | 23 |
| Millennials | 1981-1996 | 299 |
| Generation Z | 1997-2012 | 871 |
| Generation Alpha | 2013-2025 | 147 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
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).
Where are babies named Isaih born?
The states with the most babies named Isaih are Texas, California and New York, with 85% of its births recorded by state since 1910.
| State | Since 1910 | Rank, boys | vs. national |
|---|---|---|---|
| Texas | 152 | not ranked | 1.1× |
| California | 139 | not ranked | 0.7× |
| New York | 45 | not ranked | 0.4× |
| Florida | 24 | not ranked | 0.3× |
| Illinois | 17 | not ranked | 0.3× |
| Pennsylvania | 12 | not ranked | 0.2× |
| Ohio | 5 | not ranked | 0.1× |
Where Isaih is more common than its national share predicts
Relative to its national share, Isaih is most over-represented in Texas: since 1910 it was given 1.1 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Isaih with the births its national share predicts year by year, for states with at least 100 births of the name.
How common is the spelling Isaih?
Isaih is a less common spelling of Isai: SSA has recorded 1,510 Isaih and 7,385 Isai since 1880.
Of these 8 names spelled alike, given to 291,668 babies since 1880, Isaih is the fourth most given (<1% of them). In 2025 it was given to 7 of their 5,630 babies (<1%), the seventh most given that year.
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 Isaih
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 Isaih and names like it
- Compare Isaih and IsaiBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1990sIsaih peaked in 1999.
- Texas’s most given namesThe state where SSA recorded the most babies named Isaih since 1910.
- The top names of 1999The year the most babies were named Isaih.
- The names of Generation ZMost people named Isaih alive today were born 1997-2012.
- Names starting with IMost given first.