tarrant_county,_texas | largestcity | fort_worth,_texas <tsp> arlington,_texas | ispartof | tarrant_county,_texas <tsp> arlington,_texas | ispartof | texas <tsp> texas | largestcity | houston <sep> tarrant county is located in the us state of texas as of 2020, it had a population of 2,110,640 it is texas' third-most populous county and the 15th-most populous in the united states its county seat is fort worth 
houston is the largest city in texas. where the capital is forth worth. tarrant county is the location of fort worth and is also where you will find arlington.tarrant county texas is located in the u.s. state of texas