Isiac
- Last seen for boys in 2010 at #9,693
- Peak · boys
- 1912 · 5 births
- Debut · boys
- 5 births
- In top 100 · boys
- neverof 146 years
- Total births · boys
- 195since 1912
Isiac over time
boys
Rank among boys' names. Isiac has never cracked the top 2,000 here.
Hover or use arrow keys to read values by year; click or press Enter to open that year.
Gaps mean fewer than 5 babies received the name that year, so the SSA doesn't publish it.
Show data table
| Year | boys | |
|---|---|---|
| rank | births | |
| 2025 | — | |
| 2024 | — | |
| 2023 | — | |
| 2022 | — | |
| 2021 | — | |
| 2020 | — | |
| 2019 | — | |
| 2018 | — | |
| 2017 | — | |
| 2016 | — | |
| 2015 | — | |
| 2014 | — | |
| 2013 | — | |
| 2012 | — | |
| 2011 | — | |
| 2010 | #9,693 | 7 |
| 2009 | #9,864 | 7 |
| 2008 | #9,871 | 7 |
| 2007 | #5,901 | 14 |
| 2006 | #7,998 | 9 |
| 2005 | #5,578 | 14 |
| 2004 | #5,813 | 13 |
| 2003 | #5,877 | 12 |
| 2002 | #6,088 | 11 |
| 2001 | #4,890 | 15 |
| 2000 | #5,588 | 12 |
| 1999 | #7,139 | 8 |
| 1998 | #7,560 | 7 |
| 1997 | #8,110 | 6 |
| 1996 | — | |
| 1995 | — | |
| 1994 | — | |
| 1993 | — | |
| 1992 | — | |
| 1991 | — | |
| 1990 | — | |
| 1989 | — | |
| 1988 | — | |
| 1987 | — | |
| 1986 | — | |
| 1985 | — | |
| 1984 | — | |
| 1983 | — | |
| 1982 | — | |
| 1981 | #6,262 | 5 |
| 1980 | — | |
| 1979 | — | |
| 1978 | — | |
| 1977 | — | |
| 1976 | — | |
| 1975 | — | |
| 1974 | — | |
| 1973 | — | |
| 1972 | — | |
| 1971 | — | |
| 1970 | — | |
| 1969 | — | |
| 1968 | — | |
| 1967 | — | |
| 1966 | — | |
| 1965 | — | |
| 1964 | — | |
| 1963 | — | |
| 1962 | — | |
| 1961 | — | |
| 1960 | #3,665 | 6 |
| 1959 | — | |
| 1958 | — | |
| 1957 | — | |
| 1956 | — | |
| 1955 | — | |
| 1954 | — | |
| 1953 | — | |
| 1952 | — | |
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| 1946 | — | |
| 1945 | — | |
| 1944 | — | |
| 1943 | — | |
| 1942 | — | |
| 1941 | — | |
| 1940 | — | |
| 1939 | — | |
| 1938 | — | |
| 1937 | — | |
| 1936 | — | |
| 1935 | — | |
| 1934 | — | |
| 1933 | #3,268 | 6 |
| 1932 | #3,776 | 5 |
| 1931 | — | |
| 1930 | — | |
| 1929 | #3,247 | 7 |
| 1928 | — | |
| 1927 | — | |
| 1926 | #2,904 | 9 |
| 1925 | — | |
| 1924 | — | |
| 1923 | — | |
| 1922 | — | |
| 1921 | — | |
| 1920 | — | |
| 1919 | — | |
| 1918 | — | |
| 1917 | — | |
| 1916 | #3,897 | 5 |
| 1915 | #3,825 | 5 |
| 1914 | — | |
| 1913 | — | |
| 1912 | #2,544 | 5 |
| 1911 | — | |
| 1910 | — | |
| 1909 | — | |
| 1908 | — | |
| 1907 | — | |
| 1906 | — | |
| 1905 | — | |
| 1904 | — | |
| 1903 | — | |
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| 1890 | — | |
| 1889 | — | |
| 1888 | — | |
| 1887 | — | |
| 1886 | — | |
| 1885 | — | |
| 1884 | — | |
| 1883 | — | |
| 1882 | — | |
| 1881 | — | |
| 1880 | — | |
First appearance
1912
The first year at least five boys were named Isiac! It came in at #2,544, and was given to 5 baby boys.
Quietest stretch: 1912–1925, when fewer than 6 boys a year got the name.
Where Isiac is popular in 2025
No state had 5 or more boys named Isiac in 2025, so the SSA doesn't publish it for any state.
See more about Isiac
Momentum · boys
Faded out
- Not published in 2025; last seen 2010
Rise & fade · boys
Peaked on debut
- Debuted 1912
- Peaked 1912 at #2,544 (5 births)
- Births halved by 1913, 1 yr later
Top of the charts · boys
Never in the top 1,000
- Top 10: never
- Top 100: never
- Top 1,000: never
Share of babies · boys
1 in 85,988
- Highest: 1 in 85,988 boys born in 1912 were named Isiac (0.00%)
- Latest: 1 in 274,097 boys born in 2010 (0.00%)
Era · boys
The 2000s
- 58.5% of all boys named Isiac (114) were born in this decade
Show by decade
| Decade | Births | Best rank | Avg rank |
|---|---|---|---|
| 1910s | 15 | #2,544 (1912) | #3,422 |
| 1920s | 16 | #2,904 (1926) | #3,076 |
| 1930s | 11 | #3,268 (1933) | #3,522 |
| 1940s | 0 | — | — |
| 1950s | 0 | — | — |
| 1960s | 6 | #3,665 (1960) | #3,665 |
| 1970s | 0 | — | — |
| 1980s | 5 | #6,262 (1981) | #6,262 |
| 1990s | 21 | #7,139 (1999) | #7,603 |
| 2000s | 114 | #4,890 (2001) | #6,747 |
| 2010s | 7 | #9,693 (2010) | #9,693 |
All figures count published births only (names given to at least 5 boys in a year). Registrations before 1937 are incomplete, so early shares and totals run low.
Want to check a specific year?
See where Isiac ranked and which names it was up against. Click a point on the chart, or pick a year: