The baby name Delphia appears in baby name data for the United States from 1910 to 1960. It was most popular in 1919 with 140 babies given the name.
In the later years of this period, Delphia has become less common than it once was.
| Year | Count |
|---|---|
| 1910 | 49 |
| 1911 | 58 |
| 1912 | 75 |
| 1913 | 70 |
| 1914 | 95 |
| 1915 | 123 |
| 1916 | 95 |
| 1917 | 118 |
| 1918 | 86 |
| 1919 | 140 |
| 1920 | 100 |
| 1921 | 120 |
| 1922 | 111 |
| 1923 | 71 |
| 1924 | 105 |
| 1925 | 51 |
| 1926 | 76 |
| 1927 | 99 |
| 1928 | 61 |
| 1929 | 72 |
| 1930 | 61 |
| 1931 | 31 |
| 1932 | 33 |
| 1933 | 32 |
| 1934 | 45 |
| 1935 | 37 |
| 1936 | 19 |
| 1937 | 39 |
| 1938 | 27 |
| 1939 | 17 |
| 1941 | 48 |
| 1942 | 25 |
| 1943 | 18 |
| 1944 | 24 |
| 1946 | 6 |
| 1947 | 10 |
| 1948 | 5 |
| 1949 | 22 |
| 1951 | 12 |
| 1952 | 37 |
| 1954 | 17 |
| 1960 | 5 |