Last Names

Surnames / Z

Zajac

How common is the last name Zajac?

About this name

We do not yet have a written origin for Zajac, so here is what the census records show.

Surname origins are rarely settled, and we would rather say nothing than guess. The sources below are the best places to look, and our guide to how surnames began explains the usual types.

Names nearby in the census

#6,444

Zajac was the 6,444th most common surname in the 2010 US Census, with 5,270 people, about 1.7 in every 100,000.

Who carries it

  • White (non-Hispanic)97.0%
  • Hispanic or Latino1.6%
  • Black (non-Hispanic)0.3%
  • Asian or Pacific Islander0.5%
  • Two or more races0.7%
  • American Indian or Alaska Native<0.1%

Check the sources

For a name you are serious about, compare the dictionaries: Reaney and Wilson, A Dictionary of English Surnames; Hanks, Dictionary of American Family Names.