How Many People Are Named Alfonso?
people named Alfonso are alive in the United States today (estimate)
About 1 in 11,746 people in the US has this name
Based on 41,579 babies named Alfonso in Social Security records from 1881 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎 Rare
Peak Year
580 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
Spanish and Italian form of a Visigothic Germanic name, probably meaning "noble and ready", from the element adal "noble" combined with funs "ready". Other theories claim the first element is hadu or hild (see ILDEFONSO), both of which mean "battle". It is possible that two or more names merged into a single form. This was the name of six kings of Portugal and kings of several ancient regions of Spain.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
⚧ Gender Distribution
Almost all of the babies given the name Alfonso (99.7%) were boys.
👥 Age Distribution
The average person named Alfonso alive today is about 40 years old, and 43% are between 30 and 59. Half of them were between 23 and 56 in 2025.
📈 Popularity Over Time
Alfonso first appears in the records in 1881 and was given most often in 1991, to 580 babies. In 2025, 223 babies got the name.
Babies given the name each year, 1881 to 2025
🏆 Rank History
Alfonso has never been one of the 100 most popular boys' names. Its best rank was #294, in 1929. In 2025 it ranked #1,012.
| Boys | |
|---|---|
| Rank in 2025 | #1,012 |
| Best rank | #294 (1929) |
| Years in the top 100 | None |
| Rank in its biggest decade | #437 in the 1990s |
📍 State-Wise Distribution
People named Alfonso alive today, by the state where they were born (estimate; state records start in 1910).
More people named Alfonso were born in California than in any other state: about 9,451 of those alive today. Compared with the national rate in the same years, Alfonso was given 6.4 times as often in New Mexico, 3.5 times in Arizona and 3.4 times in Texas.
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