Mackenzie Sullivan
There are approximately 103 people named Mackenzie Sullivan living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 3,327,712 Americans.
This estimate combines SSA birth records for the first name Mackenzie with Census Bureau frequency data for the surname Sullivan. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
103
1 in 3,327,712
Named Mackenzie
145K
Alive today
Named Sullivan
244K
Alive today
US population
343M
Denominator
Estimated living: 145K
Rarity: Common
Gender: Female
Peak year: 2001
Average age: 21
Top Census group: White (82.6%)
Estimated bearers: 244K
Rarity: Common
Census rank: #107
Per 100K: 71.16
Top ancestry: White (85.1%)
First name trend
Mackenzie: popularity over time
Year-by-year SSA birth registrations for the first name Mackenzie. The peak year was 2001 with 7,105 births. The average person named Mackenzie today is 21 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Mackenzie
Self-reported race and ethnicity breakdown for people with the first name Mackenzie, from the 2020 US Census Bureau first-name tables. The largest published group is White at 82.6%.
The bar chart below shows how people with the first name Mackenzie 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 Mackenzie at the time of the Census. A first name does not determine a person's race or ethnicity.
- White82.6% · 103,288
- Hispanic or Latino5.9% · 7,327
- Two or more races5.1% · 6,335
- Black or African American4.9% · 6,101
- Asian and Pacific Islander1.0% · 1,239
- American Indian and Alaska Native0.6% · 732
Ethnicity
Ancestry of the Sullivan surname
Self-reported race and ethnicity breakdown for people with the surname Sullivan, from the 2020 US Census Bureau. The largest group is White at 85.1%.
The bar chart below shows how people with the surname Sullivan 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 Sullivan at the time of the Census. A surname does not determine a person's race or ethnicity.
- White85.1% · 181,015
- Black or African American6.9% · 14,770
- Hispanic or Latino3.4% · 7,307
- Two or more races3.3% · 7,020
- Asian and Pacific Islander0.7% · 1,491
- American Indian and Alaska Native0.5% · 1,098
Methodology
How we calculated this
The first name Mackenzie has a living-bearer frequency of 0.0423% of the US population, based on 144,926 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 Mackenzie right now.
The surname Sullivan appears at a rate of 71.16 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0712%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 103 people with the full name Mackenzie Sullivan. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Mackenzie
Related
Other people with the surname Sullivan
FAQ
Mackenzie Sullivan: questions and answers
How many people are named Mackenzie Sullivan?
We estimate approximately 103 people in the United States share the full name Mackenzie Sullivan. That works out to about 1 in 3,327,712 Americans. This is calculated by combining the first-name frequency (0.0423%) with the surname frequency (71.16 per 100K) against the current US population.
How rare is the name Mackenzie Sullivan?
We classify Mackenzie Sullivan as "Very Rare". About 1 in 3,327,712 Americans share this exact first and last name combination.
Is Mackenzie a male or female name?
Mackenzie is predominantly female. Out of 147,679 total SSA registrations, 5.3% were male and 94.7% were female. See the full Mackenzie 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 called Mackenzie Sullivan?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.