The baby name Iona appears in baby name data for the United States from 1910 to 2023. It was most popular in 1918 with 515 babies given the name.
In the later years of this period, Iona has become less common than it once was.
| Year | Count |
|---|---|
| 1910 | 103 |
| 1911 | 98 |
| 1912 | 141 |
| 1913 | 130 |
| 1914 | 137 |
| 1915 | 342 |
| 1916 | 405 |
| 1917 | 407 |
| 1918 | 515 |
| 1919 | 412 |
| 1920 | 468 |
| 1921 | 428 |
| 1922 | 315 |
| 1923 | 408 |
| 1924 | 400 |
| 1925 | 364 |
| 1926 | 312 |
| 1927 | 430 |
| 1928 | 381 |
| 1929 | 369 |
| 1930 | 268 |
| 1931 | 293 |
| 1932 | 213 |
| 1933 | 186 |
| 1934 | 198 |
| 1935 | 159 |
| 1936 | 144 |
| 1937 | 90 |
| 1938 | 89 |
| 1939 | 126 |
| 1940 | 35 |
| 1941 | 54 |
| 1942 | 63 |
| 1943 | 67 |
| 1944 | 45 |
| 1945 | 25 |
| 1946 | 30 |
| 1947 | 26 |
| 1948 | 33 |
| 1949 | 26 |
| 1950 | 37 |
| 1951 | 25 |
| 1952 | 24 |
| 1953 | 16 |
| 1954 | 30 |
| 1955 | 38 |
| 1956 | 5 |
| 1957 | 6 |
| 1958 | 6 |
| 1959 | 15 |
| 1961 | 6 |
| 1965 | 10 |
| 1970 | 5 |
| 2010 | 5 |
| 2012 | 5 |
| 2013 | 6 |
| 2014 | 10 |
| 2015 | 10 |
| 2016 | 6 |
| 2017 | 28 |
| 2018 | 18 |
| 2019 | 19 |
| 2021 | 17 |
| 2022 | 5 |
| 2023 | 6 |