How Many People Are Named Zachariah?
An estimated 29,870 people in the United States have the first name Zachariah. It is almost exclusively a male name. The average bearer is 25 years old, and Zachariah peaked in popularity in 1992 with 874 births that year.
Below you will find a full statistical profile of Zachariah 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 Zachariah paired with any surname.
Estimated Living Americans
29,870
About 1 in 11,475 people in the U.S.
Rarity
Uncommon
Predicted Gender
Male
99.9% confidence
Average Age
25
years old
Peak Year
1992
874 births
Total Registered
30,705
since 1880
Gender Distribution for Zachariah
Zachariah is almost exclusively a male name. Out of 30,705 total births registered, 99.9% were male.
Zachariah as a male name
Ranked #569 in 2024
512 male births in 2024
Peak: 1992 (874 births)
Zachariah as a female name
Ranked #19,771 in 2010
5 female births in 2010
Peak: 1983 (7 births)
Zachariah in the 2020 Census
The 2020 Census recorded 20,718 people with the first name Zachariah, which placed it at #1,569 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, Zachariah was recorded as predominantly male. Out of 20,718 people with this name in that snapshot, 99.7% were male and 0.3% were female. That is very close to the long-run birth pattern in SSA records, where the name is male 99.9% of the time.
Census Count
20,718
people with this name
Census Rank
#1,569
among Census first names
Frequency Rate
6.86
per 100,000 people
Recorded Race and Hispanic Origin in the 2020 Census
In the 2020 Census, the first name Zachariah was most commonly recorded among people who identified as White (65.41%). The next largest recorded groups were Hispanic (11.76%) and Black (11.53%).
These percentages describe the people who had the first name Zachariah 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 Zachariah.
| Group | Share | Count |
|---|---|---|
| White | 65.41% | 13,555 |
| Hispanic | 11.76% | 2,437 |
| Black | 11.53% | 2,390 |
| Two or More Races | 7.33% | 1,519 |
| Asian and Pacific Islander | 2.45% | 508 |
| American Indian and Alaska Native | 1.51% | 313 |
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.
Zachariah: Popularity Over Time
SSA records for Zachariah span from the 1880s to the 2020s, covering 14 decades of naming data. The most popular decade for this name was the 1990s, when 7,645 babies were registered. While Zachariah is less common than at its peak in the 1990s, it remains a well-established name with steady registrations.
Zachariah by Decade
How has Zachariah 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.
Zachariah by State
Birth registrations for Zachariah span all 48 states and territories in the SSA database. The highest counts are in California, Texas, Ohio. The lowest are in Vermont, New Hampshire, Wyoming. On average, about 591 Zachariahs were registered per state.
Zachariah + Last Name Combinations
How many people share a full name with Zachariah as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Zachariah
Other first names starting with Z with a similar number of bearers.
Zachariah: Questions and Answers
How many people in the U.S. are named Zachariah?
We estimate approximately 29,870 people named Zachariah 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 11,475 Americans share this first name.
Is Zachariah a common name?
Zachariah is classified as "Uncommon" and is more popular than 98.8% of all first names in the SSA database. A total of 30,705 births have been registered with this name since 1880.
When was Zachariah most popular?
Zachariah reached peak popularity in 1992, when 874 babies were given this name. The average age of a living person named Zachariah is approximately 25 years old, reflecting when the name was most commonly given.
How common was Zachariah in the 2020 Census?
The 2020 Census recorded 20,718 people with the first name Zachariah. That placed it at #1,569 in the published Census first-name tables, or 6.86 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 Zachariah 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 Zachariah?
In the 2020 Census snapshot, Zachariah was recorded as predominantly male. The published split was 99.7% male and 0.3% female.
What does the Census say about the background of people named Zachariah?
In the 2020 Census, the first name Zachariah was most commonly recorded among people who identified as White (65.41%). The next largest recorded groups were Hispanic (11.76%) and Black (11.53%). 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 Zachariah a male name?
Zachariah is predominantly male. 99.9% of people with this name are male. See the gender breakdown above for full details.
Why can Zachariah 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. Zachariah peaked in 1992, and the average living bearer is about 25 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Zachariah Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Zachariah Smith, Zachariah Johnson, Zachariah 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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