How Many People Are Named Sigifredo?
An estimated 478 people in the United States have the first name Sigifredo. It is almost exclusively a male name. The average bearer is 38 years old, and Sigifredo peaked in popularity in 1998 with 19 births that year.
Below you will find a full statistical profile of Sigifredo as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Sigifredo paired with any surname.
Estimated Living Americans
478
About 1 in 717,059 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
38
years old
Peak Year
1998
19 births
Total Registered
527
since 1880
Gender Distribution for Sigifredo
Sigifredo is almost exclusively a male name. Out of 527 total births registered, 100.0% were male.
Sigifredo as a male name
Ranked #11,924 in 2018
6 male births in 2018
Peak: 1998 (19 births)
Sigifredo: Popularity Over Time
SSA records for Sigifredo span from the 1920s to the 2010s, covering 10 decades of naming data. The most popular decade for this name was the 1990s, when 126 babies were registered. Sigifredo has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Sigifredo by Decade
How has Sigifredo tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Sigifredo by State
Birth registrations for Sigifredo span all 3 states and territories in the SSA database. The highest counts are in Texas, California, Illinois. The lowest are in Illinois, California, Texas. On average, about 62 Sigifredos were registered per state.
Sigifredo + Last Name Combinations
How many people share a full name with Sigifredo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Sigifredo
Other first names starting with S with a similar number of bearers.
Sigifredo: Questions and Answers
How many people in the U.S. are named Sigifredo?
We estimate approximately 478 people named Sigifredo are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 717,059 Americans share this first name.
Is Sigifredo a common name?
Sigifredo is classified as "Very Rare" and is more popular than 84.1% of all first names in the SSA database. A total of 527 births have been registered with this name since 1880.
When was Sigifredo most popular?
Sigifredo reached peak popularity in 1998, when 19 babies were given this name. The average age of a living person named Sigifredo is approximately 38 years old, reflecting when the name was most commonly given.
Is Sigifredo a male name?
Sigifredo is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Sigifredo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Sigifredo Smith, Sigifredo Johnson, Sigifredo Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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