How Many People Are Named Nairobi?
An estimated 1,475 people in the United States have the first name Nairobi. It is predominantly female (97.7%). The average bearer is 9 years old, and Nairobi peaked in popularity in 2021 with 242 births that year.
Below you will find a full statistical profile of Nairobi 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 Nairobi paired with any surname.
Key Insights
- Nairobi is a modern name. With an average bearer age of just 9, it has gained most of its popularity in recent years.
Estimated Living Americans
1,475
About 1 in 232,376 people in the U.S.
Rarity
Rare
Predicted Gender
Female
97.7% confidence
Average Age
9
years old
Peak Year
2021
242 births
Total Registered
1,490
since 1880
Gender Distribution for Nairobi
Nairobi is predominantly female (97.7%), though 35 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Nairobi as a male name
Ranked #13,541 in 2023
5 male births in 2023
Peak: 1999 (9 births)
Nairobi as a female name
Ranked #1,535 in 2024
139 female births in 2024
Peak: 2021 (242 births)
Nairobi: Popularity Over Time
SSA records for Nairobi span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 2020s, when 1,006 babies were registered. Nairobi remains highly popular today, with recent registration numbers near its historical peak.
Nairobi by Decade
How has Nairobi 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.
Nairobi by State
Birth registrations for Nairobi span all 21 states and territories in the SSA database. The highest counts are in California, Texas, New York. The lowest are in Tennessee, Massachusetts, Colorado. On average, about 39 Nairobis were registered per state.
Nairobi + Last Name Combinations
How many people share a full name with Nairobi as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Nairobi
Other first names starting with N with a similar number of bearers.
Nairobi: Questions and Answers
How many people in the U.S. are named Nairobi?
We estimate approximately 1,475 people named Nairobi 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 232,376 Americans share this first name.
Is Nairobi a common name?
Nairobi is classified as "Rare" and is more popular than 92.3% of all first names in the SSA database. A total of 1,490 births have been registered with this name since 1880.
When was Nairobi most popular?
Nairobi reached peak popularity in 2021, when 242 babies were given this name. The average age of a living person named Nairobi is approximately 9 years old, reflecting when the name was most commonly given.
Is Nairobi a female name?
Nairobi is predominantly female. 97.7% of people with this name are female. See the gender breakdown above for full details.
How many Nairobi Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Nairobi Smith, Nairobi Johnson, Nairobi 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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