How Many People Are Named Deforest?
An estimated 203 people in the United States have the first name Deforest. It is almost exclusively a male name. The average bearer is 65 years old, and Deforest peaked in popularity in 1920 with 26 births that year.
Below you will find a full statistical profile of Deforest 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 Deforest paired with any surname.
Key Insights
- With an average bearer age of 65, Deforest is a vintage name most associated with earlier generations. Most living bearers were born before 1971.
Estimated Living Americans
203
About 1 in 1,688,445 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
65
years old
Peak Year
1920
26 births
Total Registered
667
since 1880
Gender Distribution for Deforest
Deforest is almost exclusively a male name. Out of 667 total births registered, 100.0% were male.
Deforest as a male name
Ranked #10,963 in 2001
5 male births in 2001
Peak: 1920 (26 births)
Deforest: Popularity Over Time
SSA records for Deforest span from the 1880s to the 2000s, covering 12 decades of naming data. The most popular decade for this name was the 1920s, when 174 babies were registered. Deforest has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Deforest by Decade
How has Deforest 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.
Deforest + Last Name Combinations
How many people share a full name with Deforest as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Deforest
Other first names starting with D with a similar number of bearers.
Deforest: Questions and Answers
How many people in the U.S. are named Deforest?
We estimate approximately 203 people named Deforest 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 1,688,445 Americans share this first name.
Is Deforest a common name?
Deforest is classified as "Very Rare" and is more popular than 74.4% of all first names in the SSA database. A total of 667 births have been registered with this name since 1880.
When was Deforest most popular?
Deforest reached peak popularity in 1920, when 26 babies were given this name. The average age of a living person named Deforest is approximately 65 years old, reflecting when the name was most commonly given.
Is Deforest a male name?
Deforest is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Deforest Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Deforest Smith, Deforest Johnson, Deforest 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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