How Many People Are Named Sydnie?
An estimated 5,033 people in the United States have the first name Sydnie. It is almost exclusively a female name. The average bearer is 25 years old, and Sydnie peaked in popularity in 2000 with 352 births that year.
Below you will find a full statistical profile of Sydnie 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 Sydnie paired with any surname.
Estimated Living Americans
5,033
About 1 in 68,101 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
25
years old
Peak Year
2000
352 births
Total Registered
5,178
since 1880
Gender Distribution for Sydnie
Sydnie is almost exclusively a female name. Out of 5,178 total births registered, 100.0% were female.
Sydnie as a female name
Ranked #8,866 in 2024
12 female births in 2024
Peak: 2000 (352 births)
Sydnie: Popularity Over Time
SSA records for Sydnie span from the 1930s to the 2020s, covering 10 decades of naming data. The most popular decade for this name was the 2000s, when 2,366 babies were registered. Sydnie has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Sydnie by Decade
How has Sydnie 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.
Sydnie by State
Birth registrations for Sydnie span all 38 states and territories in the SSA database. The highest counts are in California, Texas, Ohio. The lowest are in Nevada, Mississippi, Hawaii. On average, about 85 Sydnies were registered per state.
Sydnie + Last Name Combinations
How many people share a full name with Sydnie as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Sydnie
Other first names starting with S with a similar number of bearers.
Sydnie: Questions and Answers
How many people in the U.S. are named Sydnie?
We estimate approximately 5,033 people named Sydnie 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 68,101 Americans share this first name.
Is Sydnie a common name?
Sydnie is classified as "Rare" and is more popular than 96.5% of all first names in the SSA database. A total of 5,178 births have been registered with this name since 1880.
When was Sydnie most popular?
Sydnie reached peak popularity in 2000, when 352 babies were given this name. The average age of a living person named Sydnie is approximately 25 years old, reflecting when the name was most commonly given.
Is Sydnie a female name?
Sydnie is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Sydnie Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Sydnie Smith, Sydnie Johnson, Sydnie 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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