How Many People Are Named Luiz?
An estimated 3,036 people in the United States have the first name Luiz. It is almost exclusively a male name. The average bearer is 31 years old, and Luiz peaked in popularity in 2000 with 112 births that year.
Below you will find a full statistical profile of Luiz 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 Luiz paired with any surname.
Estimated Living Americans
3,036
About 1 in 112,897 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
31
years old
Peak Year
2000
112 births
Total Registered
3,321
since 1880
Gender Distribution for Luiz
Luiz is almost exclusively a male name. Out of 3,321 total births registered, 100.0% were male.
Luiz as a male name
Ranked #5,156 in 2024
19 male births in 2024
Peak: 2000 (112 births)
Luiz: Popularity Over Time
SSA records for Luiz span from the 1910s to the 2020s, covering 12 decades of naming data. The most popular decade for this name was the 1990s, when 858 babies were registered. Luiz has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Luiz by Decade
How has Luiz 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.
Luiz by State
Birth registrations for Luiz span all 14 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in Wisconsin, Colorado, Oregon. On average, about 114 Luizs were registered per state.
Luiz + Last Name Combinations
How many people share a full name with Luiz as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Luiz
Other first names starting with L with a similar number of bearers.
Luiz: Questions and Answers
How many people in the U.S. are named Luiz?
We estimate approximately 3,036 people named Luiz 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 112,897 Americans share this first name.
Is Luiz a common name?
Luiz is classified as "Rare" and is more popular than 95.2% of all first names in the SSA database. A total of 3,321 births have been registered with this name since 1880.
When was Luiz most popular?
Luiz reached peak popularity in 2000, when 112 babies were given this name. The average age of a living person named Luiz is approximately 31 years old, reflecting when the name was most commonly given.
Is Luiz a male name?
Luiz is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Luiz Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Luiz Smith, Luiz Johnson, Luiz 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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