How Many People Are Named Efnan Johnson?

There are approximately 1 people named Efnan Johnson living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.

This estimate combines SSA birth records for the first name Efnan with Census Bureau frequency data for the surname Johnson. Below you will find a breakdown of both names, including popularity trends, gender data, and Census background data where it is available.

Estimated People with This Name

1 in 342,754,338 Americans

Combination Rarity

Very Rare

Very Rare Very Common

First Name

Efnan

Last Name

Johnson

Est. Bearers 2,130,885

Census Rank #2

Per 100K 621.69

Rarity Very Common

Efnan: Popularity Over Time

Year-by-year SSA birth registrations for the first name Efnan. The peak year was 2024 with 5 births. The average person named Efnan today is 2 years old.

Ancestry of the Johnson Surname

The surname Johnson was most commonly recorded among people who identified as White in the 2020 Census.

This is a self-reported race and ethnicity breakdown for people who had the surname Johnson in the published Census surname tables. It gives useful context around who was recorded with the name, but it does not tell the full family history of every Boone line.

White

56.79%

Black

33.56%

Hispanic

3.34%

Asian/Pacific Islander

0.71%

American Indian/Alaska Native

0.88%

Two or More Races

4.72%

How we calculated this

The first name "Efnan" has an estimated frequency of < 0.0001% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.

The surname "Johnson" appears at a rate of 621.69 per 100,000 people in the 2020 U.S. Census.

We do not use the Census first-name snapshot for the main estimate because it is only published once every 10 years. The latest public first-name Census file is from 2020, which is already 6 years old. SSA birth records plus CDC survival data give a better current estimate of how many people with the first name Efnan are likely to be alive now.

Multiplying these frequencies against the U.S. population of ~343 million gives 1 estimated people. This assumes first names and last names are statistically independent. Full methodology.

Other people named Efnan

Efnan Jones Efnan Garcia Efnan Smith Efnan Williams Efnan Brown

Other people with the surname Johnson

Michael Johnson James Johnson John Johnson David Johnson Robert Johnson William Johnson Christopher Johnson Joseph Johnson

Efnan Johnson: Questions and Answers

How many people are named Efnan Johnson?

We estimate approximately 1 people named Efnan Johnson are alive in the United States today. The first name Efnan is shared by 5 Americans, and the surname Johnson is shared by 2,130,885.

How rare is the name Efnan Johnson?

This name combination is classified as Very Rare, occurring at a rate of about 1 in 342,754,338 Americans. The first name Efnan is very rare and the surname Johnson is very common.

Is Efnan a male or female name?

Efnan is predominantly female, with 0.0% of bearers being male and 100.0% female. It peaked in popularity in 2024 and the average bearer today is 2 years old.

Where does this data come from?

First name data comes from the Social Security Administration (1880 to 2024), adjusted for survival using CDC 2023 life tables. When available, first-name Census background data comes from the 2020 U.S. Census Bureau first-name tables. Surname data comes from the 2020 U.S. Census Bureau. Full methodology.

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