Last Names

Surnames / D

Decoteau

How common is the last name Decoteau?

About this name

We do not yet have a written origin for Decoteau, 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

#13,786

Decoteau was the 13,786th most common surname in the 2010 US Census, with 2,194 people, about 0.7 in every 100,000.

Who carries it

  • White (non-Hispanic)39.6%
  • Hispanic or Latino2.8%
  • Black (non-Hispanic)14.7%
  • Asian or Pacific Islander0.5%
  • Two or more races4.3%
  • American Indian or Alaska Native38.1%

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.