Boys name · Idaho
William in Idaho
William was the 7th most popular boys name in Idaho in 2025, with 86 babies named William that year. Since 1910, Idaho families have named 12,585 babies William.
Popularity over time
William in Idaho, year by year
| Year | Babies | State rank |
|---|---|---|
| 1910 | 29 | 2nd |
| 1926 | 122 | 4th |
| 1943 | 142 | 9th |
| 1959 | 135 | 10th |
| 1976 | 90 | 24th |
| 1992 | 59 | 33rd |
| 2009 | 98 | 4th |
| 2025 | 86 | 7th |
Its rank among boys names in Idaho fell from 2nd in 1910 to 7th in 2025.
The most babies named William in Idaho in a single year was 210, in 1920. Its best showing was #1 among boys names in 1911.
Across the country, William reached its best rank of #1 in North Carolina (1998). See William in every state →
How popular is William in Idaho?
William was the 7th most popular boys name in Idaho in 2025, with 86 babies named William that year. Since 1910, Idaho families have named 12,585 babies William.
How many babies are named William in Idaho?
In 2025, 86 babies were named William in Idaho. The most babies named William in Idaho in a single year was 210, in 1920.
What is the rank of William in Idaho?
William ranked 7th among boys names in Idaho in 2025. Its best showing was #1 among boys names in 1911.
Source: U.S. Social Security Administration, names by state of birth (public domain). Counts below 5 in a state-year are omitted by the SSA for privacy.