How Many People Are Named Lock?
An estimated 0 people in the United States have the first name Lock. It is almost exclusively a male name. The average bearer is 0 years old, and Lock peaked in popularity in 1915 with 6 births that year.
Below you will find a full statistical profile of Lock 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 Lock paired with any surname.
Key Insights
- Lock is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
0
About 1 in 1 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
0
years old
Peak Year
1915
6 births
Total Registered
16
since 1880
Gender Distribution for Lock
Lock is almost exclusively a male name. Out of 16 total births registered, 100.0% were male.
Lock as a male name
Ranked #4,561 in 1926
5 male births in 1926
Peak: 1915 (6 births)
Lock: Popularity Over Time
SSA records for Lock span from the 1910s to the 1920s, covering 2 decades of naming data. The most popular decade for this name was the 1910s, when 11 babies were registered. While Lock is less common than at its peak in the 1910s, it remains a well-established name with steady registrations.
Lock by Decade
How has Lock 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.
Lock + Last Name Combinations
How many people share a full name with Lock as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Lock
Other first names starting with L with a similar number of bearers.
Lock: Questions and Answers
How many people in the U.S. are named Lock?
We estimate approximately 0 people named Lock 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 1 Americans share this first name.
Is Lock a common name?
Lock is classified as "Very Rare" and is more popular than 2.9% of all first names in the SSA database. A total of 16 births have been registered with this name since 1880.
When was Lock most popular?
Lock reached peak popularity in 1915, when 6 babies were given this name. The average age of a living person named Lock is approximately 0 years old, reflecting when the name was most commonly given.
Is Lock a male name?
Lock is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Lock Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Lock Smith, Lock Johnson, Lock 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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