Explore the Family Name St. Mary

The meaning of St. Mary

Americanized form of French Sainte-Marie (see Ste. Marie). Some characteristic forenames: French Colette, Armand, Arsene.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name St. Mary in the United States?

Based on data from the Decennial U.S. Census, the popularity of the surname St. Mary has seen a slight increase over time. In 2000, this surname was ranked as the 39,240th most popular in the United States with 528 occurrences. By 2010, the rank increased to 38,155, reflecting a change of 2.77%. During this period, the count of individuals with the St. Mary surname also rose by 10.04% from 528 to 581. The proportion of this surname per 100,000 people remained consistent at 0.2 for both years.

	2000	2010	Change
Rank	#39,240	#38,155	2.77%
Count	528	581	10.04%
Proportion per 100k	0.2	0.2	0%

Race and Ethnicity of people with the last name St. Mary

The ethnic identity associated with the St. Mary surname has also seen shifts according to the Decennial U.S. Census data. In 2000, the majority of people with this surname identified as White (82.95%), followed by Black (12.12%) and Hispanic (2.46%). A small percentage also identified with two or more races (1.89%). By 2010, while the majority still identified as White, the percentage had decreased to 78.83%. The percentage of those identifying as Black slightly increased to 12.91%, and the Hispanic representation also grew to 3.44%. Notably, there was a significant increase in the percentage of those identifying with two or more races to 3.44%, marking an 82.01% change. No individuals with the St. Mary surname identified as Asian/Pacific Islander or American Indian and Alaskan Native in either year.

	2000	2010	Change
White	82.95%	78.83%	-4.97%
Black	12.12%	12.91%	6.52%
Two or More Races	1.89%	3.44%	82.01%
Hispanic	2.46%	3.44%	39.84%
Asian/Pacific Islander	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%