Knox
Knox is a boy's name that peaked in 2022, when it was the 199th most popular in the United States. In 2025 it ranked 196th. About 24,000 Knoxes are alive in the United States today, and half of them are over 6.
Popularity, 1880–2025
girls named Knox boys named Knox
By the numbers
- Total US births
- 24,382
- Estimated living today
- 24,000
- Median age today
- 6
- Peak year
- 2022
- Best rank
- 199th
- Rank in 2025
- 196th
- First recorded
- 1881
- Girls / boys
- 240 / 24,142
How old the living Knoxes are
born that year still alive today
Of the 24,382 babies given the name since 1881, about 24,000 are alive — 97 in every hundred. Roughly 23,000 of them are children and 120 are 65 or over. The dotted line is the median: half were born before 2019 and half after.
An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.
Where the name comes from
Origin a surname
Etymology from Wiktionary, used under CC BY-SA 4.0.
Where Knox is most common
Relative to how many babies each state records, Knox is most concentrated in Utah (3.8×), South Dakota (2.6×), Nebraska (2.5×), Tennessee (2.5×).
Total births recorded in each state since 1910. Browse names by state.
Names of 2022
The most popular boys’ names the year Knox peaked:
Knox elsewhere
| Country | Spelling | Births | Best rank |
|---|---|---|---|
| England and Wales boys | Knox | 286 | 822nd |
| Scotland boys | Knox | 66 | 298th |
| Ireland boys | Knox | 7 | 655th |
| Northern Ireland boys | Knox | 3 | 392nd |
Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.
Related names
Knox against another name
Two names on one chart, with the year one overtook the other.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.