Zilphia is a very rare girls' name that was most common in the 1920s and has all but disappeared.
Zilphia is a girl name. It last appears in U.S. records in 1950. Zilphia was first reported in SSA data in 1888 and peaked in 1920 (16 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1950 | 6 | — | #5,298 |
| 1941 | 6 | — | #4,418 |
| 1940 | 5 | — | #5,028 |
| 1936 | 6 | — | #4,180 |
| 1930 | 7 | — | #4,045 |
| 1929 | 8 | — | #3,681 |
| 1928 | 5 | — | #5,439 |
| 1927 | 8 | — | #3,874 |
| 1926 | 9 | — | #3,562 |
| 1924 | 10 | — | #3,392 |
| 1923 | 5 | — | #5,737 |
| 1922 | 11 | — | #3,151 |
| 1921 | 8 | — | #4,021 |
| 1920 | 16 | — | #2,356 |
| 1919 | 11 | — | #3,004 |
| 1918 | 9 | — | #3,511 |
| 1917 | 5 | — | #5,307 |
| 1916 | 12 | — | #2,657 |
| 1915 | 8 | — | #3,432 |
| 1914 | 5 | — | #4,203 |
| 1911 | 5 | — | #2,867 |
| 1909 | 5 | — | #2,546 |
| 1905 | 5 | — | #2,232 |
| 1903 | 7 | — | #1,591 |
| 1902 | 6 | — | #1,791 |
| 1897 | 6 | — | #1,554 |
| 1888 | 5 | — | #1,473 |