Bangladesh, Cambodia, China (mainland), India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Pakistan, Philippines (B), Russia (Asian) (B), Thailand, Vietnam.
Population
Estimated population is unknown (2010).
Striated Grassbird (Megalurus palustris) [XC100908]
by Frank Lambert from Assam side of Arunachal border on road to Tenga, India (song)
Striated Grassbird (Megalurus) [XC24610]
by Sander Pieterse from Ang Trapeang Thmaw, Cambodia (song)
Subspecies
Described subspecies andrewsi (from Myanmar-China border) treated as synonym of toklao.
The following 3 subspecies are recognised:
palustris Horsfield, 1821 - Java and Bali.
toklao (Blyth, 1843) - North-eastern Pakistan (eastern Punjab) east across northern India and southern Nepal to north-eastern India (Assam, Nagaland, Manipur, southern Arunachal Pradesh), Myanmar, southern China (Yunnan, southern Guizhou, Guangxi), south-eastern Thailand, Cambodia, northern Laos and northern, central and southern Vietnam.
forbesi Bangs, 1919 - Philippines and north-eastern Borneo (Sabah).