How Many People Are Named Mack?
An estimated 20,932 people in the United States have the first name Mack. It is almost exclusively a male name. The average bearer is 46 years old, and Mack peaked in popularity in 1942 with 847 births that year.
Below you will find a full statistical profile of Mack 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 Mack paired with any surname.
Key Insights
- While Mack is overwhelmingly male, 180 female births have been registered with this name since 1880.
Estimated Living Americans
20,932
About 1 in 16,375 people in the U.S.
Rarity
Uncommon
Predicted Gender
Male
99.6% confidence
Average Age
46
years old
Peak Year
1942
847 births
Total Registered
42,229
since 1880
Gender Distribution for Mack
Mack is almost exclusively a male name. Out of 42,229 total births registered, 99.6% were male.
Mack as a male name
Ranked #498 in 2024
612 male births in 2024
Peak: 1942 (840 births)
Mack as a female name
Ranked #7,415 in 1967
5 female births in 1967
Peak: 1922 (10 births)
Mack: Popularity Over Time
SSA records for Mack span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 1940s, when 5,687 babies were registered. While Mack is less common than at its peak in the 1940s, it remains a well-established name with steady registrations.
Mack by Decade
How has Mack 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.
| Decade | Total | Male | Female | |
|---|---|---|---|---|
| 1880s | 1,062 | 1,062 | 0 | |
| 1890s | 1,370 | 1,370 | 0 | |
| 1900s | 1,562 | 1,562 | 0 | |
| 1910s | 3,907 | 3,892 | 15 | |
| 1920s | 5,512 | 5,459 | 53 | |
| 1930s | 4,682 | 4,636 | 46 | |
| 1940s | 5,687 | 5,647 | 40 | |
| 1950s | 4,228 | 4,212 | 16 | |
| 1960s | 2,725 | 2,715 | 10 | |
| 1970s | 1,741 | 1,741 | 0 | |
| 1980s | 1,305 | 1,305 | 0 | |
| 1990s | 1,019 | 1,019 | 0 | |
| 2000s | 1,270 | 1,270 | 0 | |
| 2010s | 3,200 | 3,200 | 0 | |
| 2020s | 2,959 | 2,959 | 0 | |
Mack by State
Birth registrations for Mack span all 43 states and territories in the SSA database. The highest counts are in Texas, North Carolina, Georgia. The lowest are in Maine, Nevada, Montana. On average, about 780 Macks were registered per state.
Mack + Last Name Combinations
How many people share a full name with Mack as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Mack
Other first names starting with M with a similar number of bearers.
Mack: Questions and Answers
How many people in the U.S. are named Mack?
We estimate approximately 20,932 people named Mack 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 16,375 Americans share this first name.
Is Mack a common name?
Mack is classified as "Uncommon" and is more popular than 98.5% of all first names in the SSA database. A total of 42,229 births have been registered with this name since 1880.
When was Mack most popular?
Mack reached peak popularity in 1942, when 847 babies were given this name. The average age of a living person named Mack is approximately 46 years old, reflecting when the name was most commonly given.
Is Mack a male name?
Mack is predominantly male. 99.6% of people with this name are male. See the gender breakdown above for full details.
How many Mack Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Mack Smith, Mack Johnson, Mack 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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