Explore the Family Name Bac

The meaning of Bac

1. Polish (also Bać): perhaps a variant of Bacz, from a pet form of the personal name Bartłomiej (see Bartholomew), occuring in southeastern Poland. Aternatively, it may be a metonymic occupational name derived from baca ‘shepherd’. Compare Batz. 2. French: from bac ‘tub, trough’, probably applied as a metonymic occupational name or as a topographic name. 3. Slovenian: nickname from bac ‘lambkin’. Compare Batz. 4. Vietnamese (Bạc): from the Chinese surname 薄, see Bo 6. 5. Amerindian (Guatemala): Mayan name, from a Castilianized form of b’aq ‘bone’, also ‘thin’.

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

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

The surname Bac has seen a notable increase in popularity over the years, according to data from the Decennial U.S. Census. In 2000, it held the rank of 84,310 in terms of frequency among other surnames, but by 2010, Bac had climbed to rank 64,388, representing a change of 23.63%. The count of people with this surname also rose from 207 in 2000 to 309 in 2010, marking an impressive growth rate of 49.28%. Consequently, the proportion of individuals named Bac per 100,000 people increased by 25% over the decade.

20002010Change
Rank#84,310#64,38823.63%
Count20730949.28%
Proportion per 100k0.080.125%

Race and Ethnicity of people with the last name Bac

In terms of ethnicity, the data from the Decennial U.S. Census reveals a shift in the distribution for the surname Bac. In 2000, the largest ethnic identity associated with Bac was White at 55.56%, followed by Hispanic at 16.43%, and Asian/Pacific Islander at 24.15%. By 2010, however, this trend had changed significantly. The percentage of Bac bearers who identified as Hispanic more than doubled, reaching 38.83%, and those who identified as White dropped to 38.19%. Meanwhile, the Asian/Pacific Islander group saw a decrease of 23.60%. Interestingly, while there were no Bac individuals who identified as Black in 2000, by 2010, this figure had risen to 1.94%. The percentage of Bac individuals identifying as American Indian and Alaskan Native remained constant at 0%.

20002010Change
Hispanic16.43%38.83%136.34%
White55.56%38.19%-31.26%
Asian/Pacific Islander24.15%18.45%-23.6%
Two or More Races3.38%2.59%-23.37%
Black0%1.94%0%
American Indian and Alaskan Native0%0%0%