|ref4=<ref>The [http://factfinder.census.gov/servlet/IPTable?_bm=y&-reg=ACS_2006_EST_G00_S0201:518;ACS_2006_EST_G00_S0201PR:518;ACS_2006_EST_G00_S0201T:518;ACS_2006_EST_G00_S0201TPR:518&-qr_name=ACS_2006_EST_G00_S0201&-qr_name=ACS_2006_EST_G00_S0201PR&-qr_name=ACS_2006_EST_G00_S0201T&-qr_name=ACS_2006_EST_G00_S0201TPR&-ds_name=ACS_2006_EST_G00_&-TABLE_NAMEX=&-ci_type=A&-redoLog=true&-charIterations=047&-geo_id=01000US&-geo_id=NBSP&-format=&-_lang=en 2006 US American Community Survey] listed 389,171 people claiming "Belgian" ancestry.</ref>