Irby
Irby was last recorded in 1991, when 5 babies were given it; 1,130 Americans have been recorded with it between 1896 and 1991 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Irby by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Irby?
Unranked in 2025
Its last boys’ rank on record is #8,713, in 1991; SSA lists a name only in years with 5 or more births.
39 babies in 1916, the peak
Irby peaked in 1916, when 39 babies were given it (33 boys, #1,145 among boys’ names). It was not recorded in 2025.
Births by sex.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 1991 | 5 | #8,713 | 2.5 |
| 1983 | 5 | #6,669 | 2.8 |
| 1977 | 9 | #3,963 | 5.5 |
| 1975 | 5 | #5,820 | 3.2 |
| 1974 | 6 | #4,873 | 3.8 |
| 1973 | 6 | #4,743 | 3.8 |
| 1972 | 7 | #4,159 | 4.3 |
| 1970 | 5 | #5,031 | 2.7 |
| 1969 | 8 | #3,423 | 4.5 |
| 1968 | 7 | #3,494 | 4.0 |
Every recorded year (71)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 1967 | 6 | #3,726 | 3.4 |
| 1966 | 5 | #4,199 | 2.8 |
| 1965 | 5 | #4,155 | 2.7 |
| 1964 | 8 | #3,139 | 4.0 |
| 1963 | 5 | #4,301 | 2.5 |
| 1962 | 8 | #3,156 | 3.9 |
| 1961 | 6 | #3,811 | 2.8 |
| 1960 | 15 | #2,163 | 7.0 |
| 1959 | 8 | #3,137 | 3.7 |
| 1958 | 12 | #2,426 | 5.7 |
| 1957 | 11 | #2,548 | 5.1 |
| 1956 | 16 | #2,044 | 7.6 |
| 1955 | 18 | #1,872 | 8.7 |
| 1954 | 14 | #2,155 | 6.9 |
| 1953 | 15 | #2,070 | 7.6 |
| 1952 | 16 | #1,971 | 8.2 |
| 1951 | 17 | #1,870 | 9.0 |
| 1950 | 13 | #2,147 | 7.3 |
| 1949 | 16 | #1,903 | 9.0 |
| 1948 | 23 | #1,535 | 13.1 |
| 1947 | 12 | #2,302 | 6.6 |
| 1946 | 9 | #2,610 | 5.5 |
| 1945 | 15 | #1,816 | 11.1 |
| 1944 | 14 | #1,923 | 10.3 |
| 1943 | 11 | #2,333 | 7.7 |
| 1942 | 20 | #1,604 | 14.5 |
| 1941 | 12 | #2,132 | 9.8 |
| 1940 | 20 | #1,541 | 17.3 |
| 1939 | 27 | #1,286 | 24.4 |
| 1938 | 16 | #1,778 | 14.4 |
| 1937 | 25 | #1,357 | 23.4 |
| 1936 | 15 | #1,841 | 14.5 |
| 1935 | 22 | #1,468 | 21.1 |
| 1934 | 14 | #1,972 | 13.6 |
| 1933 | 21 | #1,519 | 21.2 |
| 1932 | 23 | #1,490 | 22.0 |
| 1931 | 27 | #1,347 | 26.0 |
| 1930 | 26 | #1,442 | 23.7 |
| 1929 | 21 | #1,640 | 19.5 |
| 1928 | 30 | #1,340 | 27.1 |
| 1927 | 18 | #1,913 | 16.0 |
| 1926 | 37 | #1,183 | 33.3 |
| 1925 | 24 | #1,554 | 21.5 |
| 1924 | 29 | #1,394 | 25.6 |
| 1923 | 17 | #1,979 | 15.5 |
| 1922 | 30 | #1,355 | 27.6 |
| 1921 | 24 | #1,568 | 21.8 |
| 1920 | 26 | #1,477 | 24.4 |
| 1919 | 21 | #1,664 | 21.4 |
| 1918 | 37 | #1,140 | 36.5 |
| 1917 | 26 | #1,382 | 28.1 |
| 1916 | 33 | #1,145 | 37.1 |
| 1915 | 22 | #1,483 | 25.9 |
| 1914 | 17 | #1,518 | 26.0 |
| 1913 | 18 | #1,227 | 35.1 |
| 1912 | 14 | #1,312 | 32.6 |
| 1910 | 5 | #1,710 | 25.7 |
| 1909 | 8 | #1,119 | 48.8 |
| 1908 | 7 | #1,157 | 45.4 |
| 1906 | 5 | #1,326 | 37.6 |
| 1896 | 6 | #1,045 | 50.2 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Irby a boy’s or a girl’s name?
Of the 1,130 Americans recorded as Irby, 2% are girls and 98% boys.
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Irby: the SSA national file counts each sex separately.
How many people are named Irby, and how old are they?
An estimated 289 Americans named Irby and born in the U.S. are alive in 2026 (26% of everyone recorded); the median is 71 years old and half are between 62 and 79. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 427 people named Irby (32 women and girls, 395 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 375 born in the U.S. The Census count is 14% above that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Irby born?
The states with the most babies named Irby are Alabama, Louisiana and Texas, with 91% of its births recorded by state since 1910; Alabama and Louisiana are not among the ten states with the most births.
| State | Since 1910 | Rank, boys | vs. national |
|---|---|---|---|
| Alabama | 122 | not ranked | 4.3× |
| Louisiana | 66 | not ranked | 2.9× |
| Texas | 16 | not ranked | 0.3× |
| Tennessee | 11 | not ranked | 0.4× |
| South Carolina | 10 | not ranked | 0.5× |
Where Irby is more common than its national share predicts
Relative to its national share, Irby is most over-represented in Alabama: since 1910 it was given 4.3 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Irby with the births its national share predicts year by year, for states with at least 100 births of the name.
Names that rose and fell in the same decades as Irby
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Irby and names like it
- Compare Irby and ArvilBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1910sIrby peaked in 1916.
- Alabama’s most given namesThe state where SSA recorded the most babies named Irby since 1910.
- The top names of 1916The year the most babies were named Irby.
- The names of the Baby BoomersMost people named Irby alive today were born 1946-1964.
- Names starting with IMost given first.