Nancy Kwan
There are approximately 17 people named Nancy Kwan living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 20,162,020 Americans.
This estimate combines SSA birth records for the first name Nancy with Census Bureau frequency data for the surname Kwan. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
17
1 in 20,162,020
Named Nancy
557K
Alive today
Named Kwan
10K
Alive today
US population
343M
Denominator
Estimated living: 557K
Rarity: Very Common
Gender: Female
Peak year: 1947
Average age: 67
Estimated bearers: 10K
Rarity: Uncommon
Census rank: #3,966
Per 100K: 3.04
Top ancestry: Asian/Pacific Islander (90.5%)
First name trend
Nancy: popularity over time
Year-by-year SSA birth registrations for the first name Nancy. The peak year was 1947 with 32,502 births. The average person named Nancy today is 67 years old.
Babies born per year
Ethnicity
Ancestry of the Kwan surname
Self-reported race and ethnicity breakdown for people with the surname Kwan, from the 2010 US Census Bureau. The largest group is Asian/Pacific Islander at 90.5%.
- Asian and Pacific Islander90.5%
- White4.9%
- Two or more races2.5%
- Hispanic or Latino1.5%
- Black or African American0.6%
- American Indian and Alaska Native0.1%
Methodology
How we calculated this
The first name Nancy has a living-bearer frequency of 0.1625% of the US population, based on 557,131 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Kwan appears at a rate of 3.04 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0030%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 17 people with the full name Nancy Kwan. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Nancy
FAQ
Nancy Kwan: questions and answers
How many people are named Nancy Kwan?
We estimate approximately 17 people in the United States share the full name Nancy Kwan. That works out to about 1 in 20,162,020 Americans. This is calculated by combining the first-name frequency (0.1625%) with the surname frequency (3.04 per 100K) against the current US population.
How rare is the name Nancy Kwan?
We classify Nancy Kwan as "Very Rare". About 1 in 20,162,020 Americans share this exact first and last name combination.
Is Nancy a male or female name?
Nancy is predominantly female. Out of 1,007,116 total SSA registrations, 0.3% were male and 99.7% were female. See the full Nancy profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.