How Many People Are Named Glennis?
An estimated 1,199 people in the United States have the first name Glennis. It is used for both genders, with 74.0% female. The average bearer is 69 years old, and Glennis peaked in popularity in 1947 with 80 births that year.
Below you will find a full statistical profile of Glennis as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, state-by-state birth registrations, and, when available, a 2020 Census snapshot showing who had the name at that point in time. You can also check how many people share the full name Glennis paired with any surname.
Key Insights
- With an average bearer age of 69, Glennis is a vintage name most associated with earlier generations. Most living bearers were born before 1967.
Estimated Living Americans
1,199
About 1 in 285,867 people in the U.S.
Rarity
Rare
Predicted Gender
Female
74.0% confidence
Average Age
69
years old
Peak Year
1947
80 births
Total Registered
2,777
since 1880
Gender Distribution for Glennis
Glennis is a genuinely unisex name, used for both males (26.0%) and females (74.0%). Out of 2,777 total births registered, 721 were male and 2,056 were female.
Glennis as a male name
Ranked #7,109 in 1986
5 male births in 1986
Peak: 1956 (26 births)
Glennis as a female name
Ranked #12,631 in 1997
6 female births in 1997
Peak: 1947 (62 births)
Glennis in the 2020 Census
The 2020 Census recorded 1,647 people with the first name Glennis, which placed it at #8,724 in the published first-name tables. This is a snapshot of people who already had the name in 2020. The estimated living count elsewhere on this page is different: it is a current estimate built from SSA birth records and age-based survival rates, so the two figures are not expected to match exactly.
Read this section as a snapshot of people who already had the name in 2020. The SSA charts elsewhere on this page are still the better way to see how the name rose, fell, or shifted across generations.
Gender in the 2020 Census
In the 2020 Census, Glennis was recorded as predominantly female. Out of 1,647 people with this name in that snapshot, 20.9% were male and 79.1% were female. That is more heavily female than the long-run SSA birth pattern on this page, which sits at 74.0% female.
Census Count
1,647
people with this name
Census Rank
#8,724
among Census first names
Frequency Rate
0.55
per 100,000 people
Recorded Race and Hispanic Origin in the 2020 Census
In the 2020 Census, the first name Glennis was most commonly recorded among people who identified as White (66.61%). The next largest recorded groups were Black (21.82%) and Hispanic (7.76%).
These percentages describe the people who had the first name Glennis in the 2020 Census. They do not tell you the deeper meaning or origin of the name itself.
2020 Census demographic breakdown
Each row shows a recorded Census category for people with the first name Glennis.
| Group | Share | Count |
|---|---|---|
| White | 66.61% | 1,099 |
| Black | 21.82% | 360 |
| Hispanic | 7.76% | 128 |
| Two or More Races | 1.82% | 30 |
| American Indian and Alaska Native | 1.03% | 17 |
| Asian and Pacific Islander | 0.97% | 16 |
The Census published separate sex and race/origin tables for first names, so their total counts can differ slightly for the same name. That is why the race section focuses on the demographic mix rather than repeating a second headline count.
Glennis: Popularity Over Time
SSA records for Glennis span from the 1910s to the 1990s, covering 9 decades of naming data. The most popular decade for this name was the 1940s, when 589 babies were registered. Glennis has declined significantly from its peak in the 1940s. Recent registrations are a fraction of what they were at the name's height.
Glennis by Decade
How has Glennis 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.
Glennis by State
Birth registrations for Glennis span all 11 states and territories in the SSA database. The highest counts are in Kentucky, Georgia, Maine. The lowest are in Nebraska, Minnesota, California. On average, about 27 Glenniss were registered per state.
Glennis + Last Name Combinations
How many people share a full name with Glennis as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Glennis
Other first names starting with G with a similar number of bearers.
Glennis: Questions and Answers
How many people in the U.S. are named Glennis?
We estimate approximately 1,199 people named Glennis 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 285,867 Americans share this first name.
Is Glennis a common name?
Glennis is classified as "Rare" and is more popular than 91.2% of all first names in the SSA database. A total of 2,777 births have been registered with this name since 1880.
When was Glennis most popular?
Glennis reached peak popularity in 1947, when 80 babies were given this name. The average age of a living person named Glennis is approximately 69 years old, reflecting when the name was most commonly given.
How common was Glennis in the 2020 Census?
The 2020 Census recorded 1,647 people with the first name Glennis. That placed it at #8,724 in the published Census first-name tables, or 0.55 people per 100,000.
Why is the Census count different from the living estimate?
Because they measure different things. The Census number is a count of people with the name in 2020. The living estimate is a current model based on SSA birth records and survival rates, so it aims to estimate how many people with the name are alive now.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Glennis was given to babies from 1880 through 2024, which is why it is the best tool on the page for seeing long-run naming trends.
What does the Census say about the gender split for Glennis?
In the 2020 Census snapshot, Glennis was recorded as predominantly female. The published split was 20.9% male and 79.1% female.
What does the Census say about the background of people named Glennis?
In the 2020 Census, the first name Glennis was most commonly recorded among people who identified as White (66.61%). The next largest recorded groups were Black (21.82%) and Hispanic (7.76%). These percentages describe the people who had the name in the 2020 Census, not the deeper meaning or origin of the name itself.
Why can the Census sex total and race total differ slightly?
The Census published separate first-name tables for sex and for race and Hispanic origin. Those totals can differ slightly for the same name, so the page uses them as two related snapshots rather than treating them as perfectly interchangeable counts.
Does every first name have Census demographic data?
No. The public Census first-name tables only include names that met the Bureau's publication rules. That means some names on this site will have SSA history but no published Census demographic snapshot.
Is Glennis a female name?
Glennis is predominantly female. 74.0% of people with this name are female. See the gender breakdown above for full details.
Why can Glennis have a lot of living bearers even if it is not trendy now?
Because a name can build up a large population over many decades. Glennis peaked in 1947, and the average living bearer is about 69 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Glennis Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Glennis Smith, Glennis Johnson, Glennis 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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