How common is the surname Lonergan?

3,713 people in the United States had the surname Lonergan in the 2010 Census, about 1 in every 83,153 Americans. It ranked 8,817th of 162,253 surnames.

What ethnicity is the surname Lonergan?

In the 2010 Census, 95% of people named Lonergan identified as white (not Hispanic), and 2.6% as Hispanic or Latino (any race).

Who is the most famous person named Lonergan?

Kenneth Lonergan, American film director, playwright, and screenwriter, followed by Augustine Lonergan.

Where is the surname Lonergan most common?

Wikidata records people named Lonergan in the United States.

Is the surname Lonergan getting more or less common?

More common. 3,541 people carried it in the 2000 Census and 3,713 in 2010, up 4.9%.

The surname Lonergan

An Irish patronymic surname, carried by 3,713 people in the United States.

3 syllables Soundex L562

Every surname held by 100 or more people in the 2010 US Census, most common on the left (162,253 in all). Lonergan is more common than 94.6% of them.

Origin

Irish origin

Reduced Anglicized form of Irish Ó Longargáin (“descendant of Longargán”), a personal name based on lonn (“strong”) + garg (“fierce”) + -án.

Lonergan is a patronymic surname: formed from a father’s (or ancestor’s) given name.

One of 880 Irish surnames on this site.

Origin from Wiktionary (CC BY-SA 4.0).

How common it is

2010 US Census

There were 3,713 people named Lonergan in the United States in 2010, about 1 in every 83,153 Americans. That is up 4.9% since 2000, when the Census counted 3,541.

#8,817

rank among US surnames

3,713

people in 2010

1.3

per 100,000 Americans

+4.9%

change since 2000 (was #8,562)

Rank	Surname	People	1 in
#8,812	Villela	3,716	83,085
#8,813	Romans	3,715	83,108
#8,814	Coblentz	3,714	83,130
#8,817	Lonergan	3,713	83,153
#8,822	Molitor	3,712	83,175

Who is named Lonergan

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

95% of people named Lonergan identified as white (not Hispanic), 2.6% as Hispanic or Latino (any race) and 1.3% as two or more races.

White (not Hispanic) 95%
Hispanic or Latino (any race) 2.6%
Two or more races 1.3%
Asian and Pacific Islander 0.6%
Black (not Hispanic) 0.5%
American Indian and Alaska Native 0.2%

Compare: most common surnames among white Americans.

Famous Lonergans

2 notable people on Wikidata, most written-about first

Kenneth Lonergan
American film director, playwright, and screenwriter, born 1962
Augustine Lonergan
American politician (1874–1947)

Spellings and sound-alikes

Useful when a record has your ancestor under another spelling

Variant spellings

Landrigan

Lonergan has the Soundex code L562, the code US census indexes have used since the 1930s. Every surname with code L562.

Other Irish surnames

All 880 Irish surnames

Questions

Where does the surname Lonergan come from?: Reduced Anglicized form of Irish Ó Longargáin (“descendant of Longargán”), a personal name based on lonn (“strong”) + garg (“fierce”) + -án.
How common is the surname Lonergan?: 3,713 people in the United States had the surname Lonergan in the 2010 Census, about 1 in every 83,153 Americans. It ranked 8,817th of 162,253 surnames.
What ethnicity is the surname Lonergan?: In the 2010 Census, 95% of people named Lonergan identified as white (not Hispanic), and 2.6% as Hispanic or Latino (any race).
Who is the most famous person named Lonergan?: Kenneth Lonergan, American film director, playwright, and screenwriter, followed by Augustine Lonergan.
Where is the surname Lonergan most common?: Wikidata records people named Lonergan in the United States.
What type of surname is Lonergan?: Lonergan is a patronymic surname, formed from a father’s (or ancestor’s) given name.
Is the surname Lonergan getting more or less common?: More common. 3,541 people carried it in the 2000 Census and 3,713 in 2010, up 4.9%.
What are other spellings of Lonergan?: Landrigan.