How common is the surname Blau?

2,965 people in the United States had the surname Blau in the 2010 Census, about 1 in every 104,130 Americans. It ranked 10,758th of 162,253 surnames.

What ethnicity is the surname Blau?

In the 2010 Census, 96% of people named Blau identified as white (not Hispanic), and 2.2% as Hispanic or Latino (any race).

Who is the most famous person named Blau?

Tina Blau, Austrian artist (1845-1916), followed by Marietta Blau.

Where is the surname Blau most common?

Wikidata records people named Blau in the United States, Cisleithania and Austria and 1 other country.

Is the surname Blau getting more or less common?

More common. 2,674 people carried it in the 2000 Census and 2,965 in 2010, up 11%.

The surname Blau

A German surname, carried by 2,965 people in the United States.

1 syllable Soundex B400

Every surname held by 100 or more people in the 2010 US Census, most common on the left (162,253 in all). Blau is more common than 93.4% of them.

Origin

German origin

A surname from German.

One of 1,101 German surnames on this site.

Origin from Wiktionary (CC BY-SA 4.0).

How common it is

2010 US Census

There were 2,965 people named Blau in the United States in 2010, about 1 in every 104,130 Americans. That is up 11% since 2000, when the Census counted 2,674.

#10,758

rank among US surnames

2,965

people in 2010

1.0

per 100,000 Americans

+10.9%

change since 2000 (was #10,920)

Rank	Surname	People	1 in
#10,751	Caffey	2,968	104,025
#10,755	Moloney	2,967	104,060
#10,756	Bellard	2,966	104,095
#10,758	Butera	2,965	104,130
#10,763	Campanella	2,964	104,165
#10,765	Center	2,963	104,200

Who is named Blau

Race and Hispanic origin as people reported it in the 2010 Census

96% of people named Blau identified as white (not Hispanic), 2.2% as Hispanic or Latino (any race).

White (not Hispanic) 96%
Hispanic or Latino (any race) 2.2%
Two or more races 0.9%
Asian and Pacific Islander 0.8%

The Census suppresses very small shares to protect privacy; Black, Native American are not shown.

Compare: most common surnames among white Americans.

Famous Blaus

6 notable people on Wikidata, most written-about first

Tina Blau
Austrian artist (1845-1916)
Marietta Blau
Austrian nuclear physicist (1894–1970)
Peter Blau
American sociologist, 1918–2002
Helen Blau
British-American biochemist, stem cell researcher, and university teacher (born 1948)
Francine D. Blau
American economist, born 1946
3LAU
American DJ and electronic music producer, born 1991

Notable Blaus come mostly from the United States (3), Cisleithania (1) and Austria (1).

Spellings and sound-alikes

Useful when a record has your ancestor under another spelling

Surnames that sound like Blau

Blau has the Soundex code B400, the code US census indexes have used since the 1930s. Every surname with code B400.

Other German surnames

All 1,101 German surnames

Questions

Where does the surname Blau come from?: Blau is German in origin.
How common is the surname Blau?: 2,965 people in the United States had the surname Blau in the 2010 Census, about 1 in every 104,130 Americans. It ranked 10,758th of 162,253 surnames.
What ethnicity is the surname Blau?: In the 2010 Census, 96% of people named Blau identified as white (not Hispanic), and 2.2% as Hispanic or Latino (any race).
Who is the most famous person named Blau?: Tina Blau, Austrian artist (1845-1916), followed by Marietta Blau.
Where is the surname Blau most common?: Wikidata records people named Blau in the United States, Cisleithania and Austria and 1 other country.
Is the surname Blau getting more or less common?: More common. 2,674 people carried it in the 2000 Census and 2,965 in 2010, up 11%.