How Many People Are Named Guilford?
An estimated 141 people in the United States have the first name Guilford. It is almost exclusively a male name. The average bearer is 78 years old, and Guilford peaked in popularity in 1923 with 22 births that year.
Below you will find a full statistical profile of Guilford 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 Guilford paired with any surname.
Key Insights
- With an average bearer age of 78, Guilford is a vintage name most associated with earlier generations. Most living bearers were born before 1958.
Estimated Living Americans
141
About 1 in 2,430,882 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
78
years old
Peak Year
1923
22 births
Total Registered
589
since 1880
Gender Distribution for Guilford
Guilford is almost exclusively a male name. Out of 589 total births registered, 100.0% were male.
Guilford as a male name
Ranked #5,380 in 1973
5 male births in 1973
Peak: 1923 (22 births)
Guilford: Popularity Over Time
SSA records for Guilford span from the 1880s to the 1970s, covering 10 decades of naming data. The most popular decade for this name was the 1920s, when 165 babies were registered. Guilford has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Guilford by Decade
How has Guilford 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.
Guilford by State
Guilford + Last Name Combinations
How many people share a full name with Guilford as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Guilford
Other first names starting with G with a similar number of bearers.
Guilford: Questions and Answers
How many people in the U.S. are named Guilford?
We estimate approximately 141 people named Guilford 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 2,430,882 Americans share this first name.
Is Guilford a common name?
Guilford is classified as "Very Rare" and is more popular than 69.4% of all first names in the SSA database. A total of 589 births have been registered with this name since 1880.
When was Guilford most popular?
Guilford reached peak popularity in 1923, when 22 babies were given this name. The average age of a living person named Guilford is approximately 78 years old, reflecting when the name was most commonly given.
Is Guilford a male name?
Guilford is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Guilford Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Guilford Smith, Guilford Johnson, Guilford 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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