The baby name Illa appears in baby name data for the United States from 1915 to 1947. It was most popular in 1930 with 21 babies given the name.
Over the period shown, Illa has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1915 | 15 |
| 1916 | 6 |
| 1917 | 14 |
| 1919 | 5 |
| 1921 | 8 |
| 1922 | 5 |
| 1924 | 6 |
| 1925 | 5 |
| 1927 | 12 |
| 1928 | 5 |
| 1929 | 6 |
| 1930 | 21 |
| 1931 | 5 |
| 1932 | 5 |
| 1933 | 5 |
| 1935 | 5 |
| 1947 | 10 |