Rains County is a county located in the U.S. state of Texas. As of the 2010 census, its population was 10,914. Its seat is Emory. The county (and county seat) are named for Emory Rains, a Texas state legislator.In 1970, Recorded Texas Historic Landmark Number 10860 was placed in the county courthouse lawn.GeographyAccording to the U.S. Census Bureau, the county has a total area of, of which is land and (11%) is water. It is the fourth-smallest county in Texas by land area and fifth-smallest by total area.Major highways20px U.S. Highway 6920px State Highway 1920px State Highway 276Adjacent countiesHopkins County (north)Wood County (east)Van Zandt County (southwest)Hunt County (northwest)