How common is the last name Blair?

75,384 people in the United States have the last name Blair, about 1 in 3,965. It ranks #428 of 156,621 last names in the 2020 Census.

last name

BLAIR

#428

of 156,621 last names recorded in the 2020 Census

People
75,384
About
1 in 3,965
This common or more
30.3%
Who bears it

Of the 75,384 people with the last name Blair, 76.3% reported their origin as White, 14.6% as Black and 4.4% as two or more races. These count how people described themselves on the 2020 Census, not where the name comes from.

Spelled almost the same

One last name in the 2020 Census spelled within a letter or two of Blair, most common first.

Also a first name

As a first name, Blair ranks #1,362 of 53,615, with 26,145 people. As a baby name it peaked in 2025, with 1,876 births. See Blair as a first name

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