How Many People Are Named William Rudnicki?

There are approximately 10 people named William Rudnicki living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 34,275,434 Americans.

This estimate combines SSA birth records for the first name William with Census Bureau frequency data for the surname Rudnicki. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.

Estimated People with This Name

10

1 in 34,275,434 Americans

Combination Rarity

Rare

Very Rare Very Common

William: Popularity Over Time

Year-by-year SSA birth registrations for the first name William. The peak year was 1947 with 67,155 births. The average person named William today is 54 years old.

Male
Female
0 13K 27K 40K 54K 67K 1880 1900 1920 1940 1960 1980 2000 2020

Ancestry of the Rudnicki Surname

Self-reported race and ethnicity breakdown for people with the surname Rudnicki, from the 2010 U.S. Census Bureau.

White
96.83%
Hispanic
2.03%
Asian/Pacific Islander
0.41%

How we calculated this

The first name "William" has an estimated frequency of 0.681% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.

The surname "Rudnicki" appears at a rate of 0.42 per 100,000 people in the 2010 U.S. Census.

Multiplying these frequencies against the U.S. population of ~343 million gives 10 estimated people. This assumes first names and last names are statistically independent. Full methodology.

William Rudnicki: Questions and Answers

How many people are named William Rudnicki?

We estimate approximately 10 people named William Rudnicki are alive in the United States today. The first name William is shared by 2,335,115 Americans, and the surname Rudnicki is shared by 1,440.

How rare is the name William Rudnicki?

This name combination is classified as Rare, occurring at a rate of about 1 in 34,275,434 Americans. The first name William is very common and the surname Rudnicki is rare.

Is William a male or female name?

William is predominantly male, with 99.6% of bearers being male and 0.4% female. It peaked in popularity in 1947 and the average bearer today is 54 years old.

Where does this data come from?

First name data comes from the Social Security Administration (1880 to 2024), adjusted for survival using CDC 2023 life tables. Surname data comes from the 2010 U.S. Census Bureau. Full methodology.

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There are 10 people

with the name

William Rudnicki

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