Izaac
Izaac was given to 44 boys in 2025, #2,855 among boys’ names; 2,845 Americans have been recorded with it since 1977 (Social Security Administration, published May 2026).
An estimated 2,810 Americans named Izaac and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 16 years old and half are between 11 and 22.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Izaac by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Izaac?
#2,855 among boys’ names, 2025
Izaac fell from #1,363 in 2015 to #2,855 in 2025 among boys’ names; its share of boys born fell from 66.8 to 25.8 per million.
151 babies in 2009, the peak
Izaac peaked in 2009, when 151 boys were given it, #1,199 among boys’ names. The 44 births of 2025 are 29% of that peak.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 44 | #2,855 | 25.8 |
| 2024 | 51 | #2,612 | 29.6 |
| 2023 | 47 | #2,747 | 27.5 |
| 2022 | 63 | #2,279 | 36.1 |
| 2021 | 51 | #2,562 | 29.2 |
| 2020 | 64 | #2,174 | 37.1 |
| 2019 | 79 | #1,893 | 44.0 |
| 2018 | 80 | #1,879 | 44.0 |
| 2017 | 80 | #1,846 | 43.2 |
| 2016 | 77 | #1,908 | 40.6 |
Every recorded year (43)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2015 | 128 | #1,363 | 66.8 |
| 2014 | 131 | #1,331 | 68.2 |
| 2013 | 146 | #1,230 | 77.2 |
| 2012 | 146 | #1,219 | 77.0 |
| 2011 | 120 | #1,388 | 63.2 |
| 2010 | 133 | #1,293 | 69.3 |
| 2009 | 151 | #1,199 | 76.1 |
| 2008 | 145 | #1,215 | 71.1 |
| 2007 | 131 | #1,314 | 63.1 |
| 2006 | 100 | #1,514 | 48.7 |
| 2005 | 134 | #1,191 | 67.1 |
| 2004 | 101 | #1,408 | 50.9 |
| 2003 | 95 | #1,403 | 48.1 |
| 2002 | 99 | #1,335 | 51.0 |
| 2001 | 73 | #1,617 | 37.6 |
| 2000 | 70 | #1,653 | 35.6 |
| 1999 | 46 | #2,077 | 24.0 |
| 1998 | 41 | #2,211 | 21.5 |
| 1997 | 41 | #2,141 | 21.7 |
| 1996 | 36 | #2,265 | 19.0 |
| 1995 | 23 | #3,049 | 12.1 |
| 1994 | 25 | #2,879 | 12.9 |
| 1993 | 24 | #2,891 | 12.2 |
| 1992 | 16 | #3,816 | 8.0 |
| 1991 | 9 | #5,684 | 4.5 |
| 1990 | 6 | #7,518 | 2.9 |
| 1989 | 6 | #7,349 | 3.0 |
| 1988 | 6 | #6,740 | 3.1 |
| 1987 | 5 | #7,418 | 2.7 |
| 1980 | 5 | #6,651 | 2.8 |
| 1979 | 5 | #6,449 | 2.9 |
| 1978 | 5 | #6,196 | 3.0 |
| 1977 | 7 | #4,806 | 4.3 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Izaac a boy’s or a girl’s name?
Izaac has been recorded only for boys: SSA lists no girls with the name in 43 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Izaac: the SSA national file counts each sex separately.
How many people are named Izaac, and how old are they?
2,810 alive in 2026, estimated
That is 99% of the 2,845 Americans ever recorded as Izaac. The median Izaac alive today is 16 years old; half are between 11 and 22.
The 2020 Census counted 2,077 people named Izaac (3 women and girls, 2,074 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 2,514 born in the U.S. The Census count is 17% 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.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Generation X | 1965-1980 | 20 |
| Millennials | 1981-1996 | 150 |
| Generation Z | 1997-2012 | 1,600 |
| Generation Alpha | 2013-2025 | 1,030 |
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 Izaac born?
| State | Births 2025 | Rank, boys | vs. national |
|---|---|---|---|
| California | 14 | #1,328 | 1.6× |
Where Izaac is more common than its national share predicts
Relative to its national share, Izaac is most over-represented in California: since 1977 it was given 1.6 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 Izaac with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 8 names spelled alike, given to 9,285 babies since 1880, Izaac is the second most given (31% of them). In 2025 it was given to 44 of their 122 babies (36%), the 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 Izaac
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 Izaac and names like it
- Compare Izaac and IzaakBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sIzaac peaked in 2009.
- California’s most given namesThe state where SSA recorded the most babies named Izaac since 1910.
- The top names of 2009The year the most babies were named Izaac.
- The names of Generation ZMost people named Izaac alive today were born 1997-2012.
- Names starting with IMost given first.