How common is the surname Loos?

4,064 people in the United States had the surname Loos in the 2010 Census, about 1 in every 75,971 Americans. It ranked 8,159th of 162,253 surnames.

What ethnicity is the surname Loos?

In the 2010 Census, 95% of people named Loos identified as white (not Hispanic), and 1.7% as Hispanic or Latino (any race).

Who is the most famous person named Loos?

Adolf Loos, Austrian and Czech architect and art collector (1870-1933), followed by Anita Loos.

Where is the surname Loos most common?

Wikidata records people named Loos in Cisleithania, the United States and Belgium and 2 other countries.

Is the surname Loos getting more or less common?

Less common. 4,216 people carried it in the 2000 Census and 4,064 in 2010, down 3.6%.

The surname Loos

A surname, carried by 4,064 people in the United States.

1 syllable Soundex L200

Every surname held by 100 or more people in the 2010 US Census, most common on the left (162,253 in all). Loos is more common than 95% of them.

How common it is

2010 US Census

There were 4,064 people named Loos in the United States in 2010, about 1 in every 75,971 Americans. That is down 3.6% since 2000, when the Census counted 4,216.

#8,159

rank among US surnames

4,064

people in 2010

1.4

per 100,000 Americans

-3.6%

change since 2000 (was #7,289)

Rank	Surname	People	1 in
#8,153	Brownfield	4,067	75,915
#8,155	Sinha	4,066	75,933
#8,158	McPhee	4,065	75,952
#8,159	Paquin	4,064	75,971
#8,162	Armitage	4,063	75,990
#8,163	Hoey	4,062	76,008

Who is named Loos

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

95% of people named Loos identified as white (not Hispanic), 1.7% as Hispanic or Latino (any race) and 1.4% as two or more races.

White (not Hispanic) 95%
Hispanic or Latino (any race) 1.7%
Two or more races 1.4%
Asian and Pacific Islander 1.0%
American Indian and Alaska Native 0.4%
Black (not Hispanic) 0.3%

Compare: most common surnames among white Americans.

Famous Looss

5 notable people on Wikidata, most written-about first

Adolf Loos
Austrian and Czech architect and art collector (1870-1933)
Anita Loos
American actress and writer (1888–1981)
Ludo Loos
Belgian road bicycle racer (1955-2019)
Lina Loos
Austrian actor and author (1882-1950)
Cornelius Loos
16th century Roman Catholic priest and theologian, 1546–1595

Notable Looss come mostly from Cisleithania (1), the United States (1) and Belgium (1).

Spellings and sound-alikes

Useful when a record has your ancestor under another spelling

Surnames that sound like Loos

Loos has the Soundex code L200, the code US census indexes have used since the 1930s. Every surname with code L200.

Questions

How common is the surname Loos?: 4,064 people in the United States had the surname Loos in the 2010 Census, about 1 in every 75,971 Americans. It ranked 8,159th of 162,253 surnames.
What ethnicity is the surname Loos?: In the 2010 Census, 95% of people named Loos identified as white (not Hispanic), and 1.7% as Hispanic or Latino (any race).
Who is the most famous person named Loos?: Adolf Loos, Austrian and Czech architect and art collector (1870-1933), followed by Anita Loos.
Where is the surname Loos most common?: Wikidata records people named Loos in Cisleithania, the United States and Belgium and 2 other countries.
Is the surname Loos getting more or less common?: Less common. 4,216 people carried it in the 2000 Census and 4,064 in 2010, down 3.6%.