amarillo,_texas | ispartof | potter_county,_texas <tsp> amarillo,_texas | ispartof | randall_county,_texas <tsp> randall_county,_texas | countyseat | canyon,_texas <tsp> amarillo,_texas | country | united_states <sep> amarillo ( am-ə-ril-oh; spanish for 'yellow') is a city in the us state of texas and the seat of potter county it is the 14th-most populous city in texas and the largest city in the texas panhandle a portion of the city extends into randall county the estimated population of amarillo was 200,393 as of april 1, 2020 
amarillo is part of both potter county and randall county in texas. united states. the latter county has canyon as its county seat.a portion of the city extends into randall county texas texas