How Many People Are Named Diane?
An estimated 346,112 people in the United States have the first name Diane. While not in the top 50, it remains a well-known name ranking #138 overall. It is almost exclusively a female name. The average bearer is 67 years old, and Diane peaked in popularity in 1955 with 23,344 births that year.
Below you will find a full statistical profile of Diane 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 Diane paired with any surname.
Key Insights
- While Diane is overwhelmingly female, 1,384 male births have been registered with this name since 1880.
- With an average bearer age of 67, Diane is a vintage name most associated with earlier generations. Most living bearers were born before 1969.
- Diane has fallen dramatically from its peak in the 1950s. Recent registrations are less than 5% of what they were at the name's height.
Estimated Living Americans
346,112
About 1 in 990 people in the U.S.
Rarity
Common
Predicted Gender
Female
99.7% confidence
Average Age
67
years old
Peak Year
1955
23,344 births
Total Registered
519,974
since 1880
Gender Distribution for Diane
Diane is almost exclusively a female name. Out of 519,974 total births registered, 99.7% were female.
Diane as a male name
Ranked #7,010 in 1993
7 male births in 1993
Peak: 1958 (62 births)
Diane as a female name
Ranked #2,247 in 2024
83 female births in 2024
Peak: 1955 (23,291 births)
Diane: Popularity Over Time
SSA records for Diane span from the 1890s to the 2020s, covering 14 decades of naming data. The most popular decade for this name was the 1950s, when 211,060 babies were registered. Diane has declined significantly from its peak in the 1950s. Recent registrations are a fraction of what they were at the name's height.
Diane by Decade
How has Diane 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.
| Decade | Total | Male | Female | |
|---|---|---|---|---|
| 1890s | 13 | 0 | 13 | |
| 1900s | 108 | 0 | 108 | |
| 1910s | 728 | 0 | 728 | |
| 1920s | 2,310 | 0 | 2,310 | |
| 1930s | 22,267 | 70 | 22,197 | |
| 1940s | 123,199 | 322 | 122,877 | |
| 1950s | 211,060 | 433 | 210,627 | |
| 1960s | 114,776 | 324 | 114,452 | |
| 1970s | 25,445 | 122 | 25,323 | |
| 1980s | 11,274 | 88 | 11,186 | |
| 1990s | 4,939 | 25 | 4,914 | |
| 2000s | 2,403 | 0 | 2,403 | |
| 2010s | 1,043 | 0 | 1,043 | |
| 2020s | 409 | 0 | 409 | |
Diane by State
Birth registrations for Diane span all 51 states and territories in the SSA database. The highest counts are in New York, California, Pennsylvania. The lowest are in Nevada, Alaska, Wyoming. On average, about 10,108 Dianes were registered per state.
Diane + Last Name Combinations
How many people share a full name with Diane as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Diane
Other first names starting with D with a similar number of bearers.
Diane: Questions and Answers
How many people in the U.S. are named Diane?
We estimate approximately 346,112 people named Diane 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 990 Americans share this first name.
Is Diane a common name?
Diane is classified as "Common" and is more popular than 99.9% of all first names in the SSA database. A total of 519,974 births have been registered with this name since 1880.
When was Diane most popular?
Diane reached peak popularity in 1955, when 23,344 babies were given this name. The average age of a living person named Diane is approximately 67 years old, reflecting when the name was most commonly given.
Is Diane a female name?
Diane is predominantly female. 99.7% of people with this name are female. See the gender breakdown above for full details.
How many Diane Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Diane Smith, Diane Johnson, Diane 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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