Popularity in the United States (by decade)

1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 0.040% 0.032% 0.024% 0.016% 0.008% 1880 2020
         

Numbers

 Issac (masculine) 
 Year   Rank   Percent Used 
2020 #680 0.021
2010 #534 0.026
2000 #406 0.032
1990 #552 0.017
1980 #663 0.010
1970 #725 0.008
1960 #952 0.003
1950 #860 0.004
1940 #878 0.004
1930 #895 0.005
1920 #927 0.005
1910 #911 0.005
1900 #775 0.007
1890 #682 0.008
1880 #505 0.012