The baby name Cletus appears in baby name data for the United States from 1911 to 2002. It was most popular in 1924 with 318 babies given the name.
In the later years of this period, Cletus has become less common than it once was.
| Year | Count |
|---|---|
| 1911 | 17 |
| 1912 | 56 |
| 1913 | 75 |
| 1914 | 110 |
| 1915 | 196 |
| 1916 | 205 |
| 1917 | 250 |
| 1918 | 262 |
| 1919 | 6 |
| 1919 | 186 |
| 1920 | 254 |
| 1921 | 202 |
| 1922 | 301 |
| 1923 | 277 |
| 1924 | 318 |
| 1925 | 248 |
| 1926 | 259 |
| 1927 | 243 |
| 1928 | 188 |
| 1929 | 222 |
| 1930 | 221 |
| 1931 | 143 |
| 1932 | 218 |
| 1933 | 166 |
| 1934 | 174 |
| 1935 | 147 |
| 1936 | 167 |
| 1937 | 134 |
| 1938 | 86 |
| 1939 | 92 |
| 1940 | 80 |
| 1941 | 133 |
| 1942 | 76 |
| 1943 | 129 |
| 1944 | 46 |
| 1945 | 41 |
| 1946 | 56 |
| 1947 | 70 |
| 1948 | 61 |
| 1949 | 68 |
| 1950 | 59 |
| 1951 | 84 |
| 1952 | 61 |
| 1953 | 45 |
| 1954 | 18 |
| 1955 | 33 |
| 1956 | 15 |
| 1957 | 22 |
| 1958 | 16 |
| 1959 | 30 |
| 1960 | 34 |
| 1961 | 7 |
| 1963 | 23 |
| 1964 | 17 |
| 1965 | 12 |
| 1966 | 28 |
| 1967 | 6 |
| 1971 | 5 |
| 1974 | 10 |
| 1984 | 10 |
| 2002 | 12 |