How Many People Are Named Dorthea?
An estimated 1,074 people in the United States have the first name Dorthea. It is almost exclusively a female name. The average bearer is 59 years old, and Dorthea peaked in popularity in 1921 with 69 births that year.
Below you will find a full statistical profile of Dorthea 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 Dorthea paired with any surname.
Estimated Living Americans
1,074
About 1 in 319,138 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
59
years old
Peak Year
1921
69 births
Total Registered
2,430
since 1880
Gender Distribution for Dorthea
Dorthea is almost exclusively a female name. Out of 2,430 total births registered, 100.0% were female.
Dorthea as a female name
Ranked #15,870 in 2024
5 female births in 2024
Peak: 1921 (69 births)
Dorthea: Popularity Over Time
SSA records for Dorthea span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 1920s, when 485 babies were registered. Dorthea has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Dorthea by Decade
How has Dorthea 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.
Dorthea by State
Birth registrations for Dorthea span all 11 states and territories in the SSA database. The highest counts are in Pennsylvania, Ohio, Texas. The lowest are in Maryland, New York, Michigan. On average, about 25 Dortheas were registered per state.
Dorthea + Last Name Combinations
How many people share a full name with Dorthea as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Dorthea
Other first names starting with D with a similar number of bearers.
Dorthea: Questions and Answers
How many people in the U.S. are named Dorthea?
We estimate approximately 1,074 people named Dorthea 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 319,138 Americans share this first name.
Is Dorthea a common name?
Dorthea is classified as "Rare" and is more popular than 90.6% of all first names in the SSA database. A total of 2,430 births have been registered with this name since 1880.
When was Dorthea most popular?
Dorthea reached peak popularity in 1921, when 69 babies were given this name. The average age of a living person named Dorthea is approximately 59 years old, reflecting when the name was most commonly given.
Is Dorthea a female name?
Dorthea is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Dorthea Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Dorthea Smith, Dorthea Johnson, Dorthea 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.
Search for a full name combination
How Many of Me