Breeds locally on the western slope of the Sierra Madre Occidental in western Mexico, from northeastern Sonora south to Jalisco and Michoacán (Howell and Webb 1995, Russell and Monson 1998), where present February to August or early September (Howell and Webb 1995, Lethaby and King 2010). A detailed review of all historical records is provided by Lethaby and King (2o10).
The elevational range of the Sinaloa Martin is 1100-2800 m (American Ornithologists' Union 1998). Probably breeds above the lower (coastal) areas occupied by Gray-breasted Martin (Progne chalybea), but below the elevations where Purple Martin (Progne subis) breeds (Phillips 1986).
The nonbreeding distribution of Sinaloa Martin is completely unknown, although it often is suspected of wintering in South America, especially in northern South America (e.g. Ridgely and Tudor 1989, Howell and Webb 1995, American Ornithologists' Union 1998, Restall et al. 2006). There is a confirmed (specimen) record of a migrant from March in Guatemala (Holt 1926). There also is a sight record of several martins, believed to be this species, heading east out over the coast of Belize, with larger numbers of Purple Martin in late August; this unconfirmed record suggests "a migration route to-from the north coast of South America" (Howell and Webb 1995).
A reported specimen of a vagrant from Bermuda (Phillips 1986) is a Caribbean Martin (Progne dominicensis) (Howell and Webb 1995)