The baby name Delmar appears in baby name data for the United States from 1911 to 2009. It was most popular in 1931 with 504 babies given the name.
In the later years of this period, Delmar has become less common than it once was.
| Year | Count |
|---|---|
| 1911 | 12 |
| 1912 | 65 |
| 1913 | 81 |
| 1914 | 182 |
| 1915 | 253 |
| 1916 | 245 |
| 1917 | 337 |
| 1918 | 358 |
| 1919 | 412 |
| 1920 | 464 |
| 1921 | 463 |
| 1922 | 413 |
| 1923 | 457 |
| 1924 | 415 |
| 1925 | 453 |
| 1926 | 382 |
| 1927 | 503 |
| 1928 | 433 |
| 1929 | 407 |
| 1930 | 414 |
| 1931 | 504 |
| 1932 | 398 |
| 1933 | 434 |
| 1934 | 447 |
| 1935 | 395 |
| 1936 | 436 |
| 1937 | 349 |
| 1938 | 336 |
| 1939 | 314 |
| 1940 | 282 |
| 1941 | 288 |
| 1942 | 272 |
| 1943 | 234 |
| 1944 | 156 |
| 1945 | 148 |
| 1946 | 164 |
| 1947 | 220 |
| 1948 | 165 |
| 1949 | 120 |
| 1950 | 130 |
| 1951 | 155 |
| 1952 | 105 |
| 1953 | 136 |
| 1954 | 136 |
| 1955 | 88 |
| 1956 | 116 |
| 1957 | 104 |
| 1958 | 49 |
| 1959 | 77 |
| 1960 | 60 |
| 1961 | 34 |
| 1962 | 63 |
| 1963 | 52 |
| 1964 | 30 |
| 1965 | 10 |
| 1966 | 18 |
| 1967 | 35 |
| 1968 | 24 |
| 1969 | 33 |
| 1970 | 29 |
| 1971 | 34 |
| 1972 | 5 |
| 1973 | 34 |
| 1974 | 5 |
| 1975 | 41 |
| 1977 | 19 |
| 1978 | 10 |
| 1979 | 5 |
| 1980 | 20 |
| 1981 | 10 |
| 1983 | 8 |
| 1985 | 5 |
| 1986 | 16 |
| 1993 | 10 |
| 1995 | 5 |
| 1996 | 5 |
| 2005 | 5 |
| 2009 | 10 |