Explore the Family Name Mostert

The meaning of Mostert

Dutch and German: occupational name for a grower or seller of mustard, from Middle Dutch mostaert (Old French mo(u)starde). This surname is also established in South Africa. Some characteristic forenames: Dutch Pieter, Willem, Hendrik.

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

How common is the last name Mostert in the United States?

According to the Decennial U.S. Census data, the popularity of the surname Mostert has seen a significant increase between 2000 and 2010. In 2000, Mostert was the 75,219th most common surname in the United States with a count of 239. By 2010, it had risen to the 66,931st position with a count of 295 - an increase of 23.43 percent. The proportion of the population with this surname per 100,000 people also increased from 0.09 in 2000 to 0.1 in 2010, reflecting an 11.11 percent increase.

20002010Change
Rank#75,219#66,93111.02%
Count23929523.43%
Proportion per 100k0.090.111.11%

Race and Ethnicity of people with the last name Mostert

In terms of ethnic identity, the Decennial U.S. Census data shows that the majority of individuals with the surname Mostert identified as White, accounting for 87.87 percent in 2000 and slightly decreasing to 86.78 percent in 2010. There were no recorded instances of individuals identifying as Black or American Indian and Alaskan Native in either year. However, there was a noticeable increase in those identifying as Hispanic, from 3.77 percent in 2000 to 6.44 percent in 2010. Meanwhile, the percentage of people who identified as two or more races declined by over half from 6.69 percent in 2000 to 3.05 percent in 2010. A new category appeared in 2010, with 2.03 percent identifying as Asian/Pacific Islander.

20002010Change
White87.87%86.78%-1.24%
Hispanic3.77%6.44%70.82%
Two or More Races6.69%3.05%-54.41%
Asian/Pacific Islander0%2.03%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%