Kari Lehtonen
There are approximately 1 people named Kari Lehtonen living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Kari with Census Bureau frequency data for the surname Lehtonen. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
1
1 in 342,754,338
Named Kari
55K
Alive today
Named Lehtonen
439
Alive today
US population
343M
Denominator
Estimated living: 55K
Rarity: Uncommon
Gender: Female
Peak year: 1975
Average age: 46
Top Census group: White (89.7%)
Estimated bearers: 439
Rarity: Very Rare
Census rank: #57,414
Per 100K: 0.13
Top ancestry: White (93.5%)
First name trend
Kari: popularity over time
Year-by-year SSA birth registrations for the first name Kari. The peak year was 1975 with 2,243 births. The average person named Kari today is 46 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Kari
Self-reported race and ethnicity breakdown for people with the first name Kari, from the 2020 US Census Bureau first-name tables. The largest published group is White at 89.7%.
The bar chart below shows how people with the first name Kari described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the name Kari at the time of the Census. A first name does not determine a person's race or ethnicity.
- White89.7% · 49,350
- Two or more races2.9% · 1,607
- Hispanic or Latino2.7% · 1,483
- Black or African American2.6% · 1,441
- Asian and Pacific Islander1.4% · 768
- American Indian and Alaska Native0.7% · 364
Ethnicity
Ancestry of the Lehtonen surname
Self-reported race and ethnicity breakdown for people with the surname Lehtonen, from the 2020 US Census Bureau. The largest group is White at 93.5%.
The bar chart below shows how people with the surname Lehtonen described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the surname Lehtonen at the time of the Census. A surname does not determine a person's race or ethnicity.
- White93.5% · 358
- Hispanic or Latino3.7% · 14
- Two or more races2.1% · 8
- Asian and Pacific Islander0.5% · 2
- Black or African American0.3% · 1
Methodology
How we calculated this
The first name Kari has a living-bearer frequency of 0.0160% of the US population, based on 54,789 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
Even though the Census Bureau now publishes first-name tables, we do not use that file as the main first-name input for this estimate. The latest first-name Census snapshot is from 2020, which makes it 6 years old today. Because Census first-name data is only released once every 10 years, SSA birth records plus CDC survival rates give a better current estimate of how many people are likely alive with the name Kari right now.
The surname Lehtonen appears at a rate of 0.13 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0001%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Kari Lehtonen. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Kari
FAQ
Kari Lehtonen: questions and answers
How many people are named Kari Lehtonen?
We estimate approximately 1 people in the United States share the full name Kari Lehtonen. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0160%) with the surname frequency (0.13 per 100K) against the current US population.
How rare is the name Kari Lehtonen?
We classify Kari Lehtonen as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Kari a male or female name?
Kari is predominantly female. Out of 60,515 total SSA registrations, 1.5% were male and 98.5% were female. See the full Kari 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 2020 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.
How many people are named Kari Lehtonen?
Want to know how common the name Kari Lehtonen is? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.