How Many People Are Named Robertha?
An estimated 156 people in the United States have the first name Robertha. It is almost exclusively a female name. The average bearer is 74 years old, and Robertha peaked in popularity in 1921 with 20 births that year.
Below you will find a full statistical profile of Robertha 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 Robertha paired with any surname.
Key Insights
- With an average bearer age of 74, Robertha is a vintage name most associated with earlier generations. Most living bearers were born before 1962.
Estimated Living Americans
156
About 1 in 2,197,143 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
74
years old
Peak Year
1921
20 births
Total Registered
548
since 1880
Gender Distribution for Robertha
Robertha is almost exclusively a female name. Out of 548 total births registered, 100.0% were female.
Robertha as a female name
Ranked #11,853 in 1982
5 female births in 1982
Peak: 1921 (20 births)
Robertha: Popularity Over Time
SSA records for Robertha span from the 1900s to the 1980s, covering 9 decades of naming data. The most popular decade for this name was the 1920s, when 152 babies were registered. Robertha has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Robertha by Decade
How has Robertha 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.
Robertha by State
Robertha + Last Name Combinations
How many people share a full name with Robertha as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Robertha
Other first names starting with R with a similar number of bearers.
Robertha: Questions and Answers
How many people in the U.S. are named Robertha?
We estimate approximately 156 people named Robertha 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 2,197,143 Americans share this first name.
Is Robertha a common name?
Robertha is classified as "Very Rare" and is more popular than 70.8% of all first names in the SSA database. A total of 548 births have been registered with this name since 1880.
When was Robertha most popular?
Robertha reached peak popularity in 1921, when 20 babies were given this name. The average age of a living person named Robertha is approximately 74 years old, reflecting when the name was most commonly given.
Is Robertha a female name?
Robertha is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Robertha Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Robertha Smith, Robertha Johnson, Robertha 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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