How Many People Are Named Ildefonso?
people named Ildefonso are alive in the United States today (estimate)
About 1 in 1,071,425 people in the US has this name
Based on 392 babies named Ildefonso in Social Security records from 1917 to 2022, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
16 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
Spanish form of the Visigothic name Hildefons, which meant "battle ready", derived from the Germanic elements hild "battle" and funs "ready". This was the name of a 7th-century saint, an archbishop of Toledo.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
⚧ Gender Distribution
All of the babies given the name Ildefonso in the records were boys.
👥 Age Distribution
The average person named Ildefonso alive today is about 45 years old, and 57% are between 30 and 59. Half of them were between 32 and 58 in 2025.
📈 Popularity Over Time
Ildefonso first appears in the records in 1917 and was given most often in 1976, to 16 babies. The last year it was given to at least 5 babies of one sex was 2022.
Babies given the name each year, 1917 to 2022
🏆 Rank History
Ildefonso has never been one of the 100 most popular boys' names. Its best rank was #2,473, in 1946.
| Boys | |
|---|---|
| Rank in 2025 | Not ranked |
| Best rank | #2,473 (1946) |
| Years in the top 100 | None |
| Rank in its biggest decade | #4,889 in the 1980s |
📍 State-Wise Distribution
People named Ildefonso alive today, by the state where they were born (estimate; state records start in 1910).
More people named Ildefonso were born in Texas than in any other state: about 21 of those alive today.
Look up another name
⊙ We don't save the names you search.