Anguilla, Antigua And Barbuda, Aruba, Bahamas, Barbados, Belize, Bermuda, Brazil, Canada (P), Cayman Islands, Chile, Colombia, Costa Rica, Cuba, Dominica, Dominican Republic, Ecuador, El Salvador, French Guiana, Grenada, Guadeloupe, Guatemala, Guyana, Haiti, Honduras, Jamaica (NB), Martinique, Mexico, Montserrat, Netherlands Antilles, Nicaragua, Panama, Peru, Puerto Rico, St Kitts And Nevis, St Lucia, St Pierre and Miquelon (B) (P), St Vincent and The Grenadines, Suriname, Trinidad and Tobago, Turks and Caicos Islands, USA (B), Venezuela, Virgin Islands (British) (NB), Virgin Islands (U.S.) (NB).
Vagrant to France, French Polynesia, Greenland, Ireland, Portugal, United Kingdom.
Breeds from central and southern Canada (north-western British Columbia, extreme southern Yukon and south-western Northwest Territories east to Newfoundland and Nova Scotia) south through much of central and eastern USA (but excluding most of south-western and south-east). Migrates to Middle America (south from north-western and central Mexico), Caribbean and north-western South America (excluding Amazon Basin). Small numbers winter on coast of south-eastern USA (southern Florida), and also rarely in south-western USA (southern California).
 
Population
Estimated population is 25,000,000 (2010).
American Redstart (Setophaga ruticilla) [XC77261]
by Mike Nelson from Seven Islands Wildlife Refuge, Knoxville, Tennessee, United States (song)
American Redstart (Setophaga) [XC179305]
by Martin St-Michel from George Montgomery Sanctuary, Brome-Missisquoi, Qu\u00e9bec, Canada (song)
Subspecies
No subspecies.
Genus considered closest to Dendroica, and some authors have suggested that it be subsumed in latter. Probably close also to Mniotilta. Has hybridized with Northern Parula (Setophaga americana) and probably also with Nashville Warbler (Leiothlypis ruficapilla). Western breeding birds described as a geographical subspecies, tricolor, but generally considered inseparable from those elsewhere in species' range.