<Tr> <Th> Time zone </Th> <Td> Mountain: UTC − 7 / − 6 </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.epcounty.com </Td> </Tr> <P> El Paso County is the westernmost county in the U.S. state of Texas . As of the 2010 census, the population was 800,647, making it the sixth-most populous county in the state of Texas . Its seat is the city of El Paso, the sixth-most populous city in Texas and the 19th-most populous city in the United States . The county was created in 1850 and later organized in 1871 . </P> <P> El Paso is short for "El Paso del Rio del Norte", which is Spanish for "The Pass of the River of the North". It is named for the pass the Rio Grande creates through the mountains on either side of the river . The county is northeast of the Mexico--United States border . </P>

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