The baby name Erma appears in baby name data for the United States from 1910 to 2023. It was most popular in 1925 with 2,098 babies given the name.
In the later years of this period, Erma has become less common than it once was.
| Year | Count |
|---|---|
| 1910 | 772 |
| 1911 | 812 |
| 1912 | 1,015 |
| 1913 | 1,133 |
| 1914 | 1,314 |
| 1915 | 1,821 |
| 1916 | 1,795 |
| 1917 | 1,933 |
| 1918 | 1,926 |
| 1919 | 1,917 |
| 1920 | 1,927 |
| 1921 | 1,924 |
| 1922 | 1,642 |
| 1923 | 1,689 |
| 1924 | 1,795 |
| 1925 | 2,098 |
| 1926 | 1,989 |
| 1927 | 1,917 |
| 1928 | 2,030 |
| 1929 | 1,803 |
| 1930 | 1,731 |
| 1931 | 1,580 |
| 1932 | 1,623 |
| 1933 | 1,400 |
| 1934 | 1,251 |
| 1935 | 1,405 |
| 1936 | 1,020 |
| 1937 | 1,025 |
| 1938 | 965 |
| 1939 | 927 |
| 1940 | 875 |
| 1941 | 778 |
| 1942 | 794 |
| 1943 | 959 |
| 1944 | 644 |
| 1945 | 592 |
| 1946 | 594 |
| 1947 | 616 |
| 1948 | 641 |
| 1949 | 523 |
| 1950 | 632 |
| 1951 | 614 |
| 1952 | 559 |
| 1953 | 479 |
| 1954 | 463 |
| 1955 | 376 |
| 1956 | 354 |
| 1957 | 379 |
| 1958 | 288 |
| 1959 | 291 |
| 1960 | 212 |
| 1961 | 233 |
| 1962 | 181 |
| 1963 | 152 |
| 1964 | 169 |
| 1965 | 79 |
| 1966 | 115 |
| 1967 | 57 |
| 1968 | 80 |
| 1969 | 48 |
| 1970 | 66 |
| 1971 | 15 |
| 1972 | 38 |
| 1973 | 12 |
| 1974 | 17 |
| 1975 | 40 |
| 1976 | 26 |
| 1977 | 39 |
| 1978 | 14 |
| 1979 | 24 |
| 1980 | 29 |
| 1981 | 21 |
| 1982 | 13 |
| 1983 | 9 |
| 1985 | 11 |
| 1986 | 17 |
| 1987 | 16 |
| 1988 | 17 |
| 1989 | 14 |
| 1990 | 18 |
| 1991 | 20 |
| 1993 | 17 |
| 1995 | 5 |
| 1996 | 20 |
| 1997 | 10 |
| 2000 | 12 |
| 2001 | 7 |
| 2003 | 6 |
| 2004 | 10 |
| 2005 | 18 |
| 2006 | 18 |
| 2007 | 5 |
| 2008 | 5 |
| 2012 | 6 |
| 2015 | 11 |
| 2016 | 6 |
| 2017 | 5 |
| 2019 | 9 |
| 2020 | 8 |
| 2021 | 14 |
| 2023 | 12 |