Hill County is a county in the U.S. state of Texas. As of the 2020 census, its population was 35,874. Its county seat is Hillsboro. The county is named for George Washington Hill, secretary of war and secretary of the navy under the Republic of Texas. Hill County is part of Central Texas, though not included in the Texas Hill Country.

Geography

According to the U.S. Census Bureau, the county has a total area of , of which are land and (2.7%) are covered by water.

Major highways

  • 20px Interstate 35
  • 23px Interstate 35E
  • 23px Interstate 35W
  • 20px U.S. Highway 77
  • 20px State Highway 22
  • 20px State Highway 31
  • 20px State Highway 81
  • 20px State Highway 171
  • 20px State Highway 174

Adjacent counties

  • Johnson County (north)
  • Ellis County (northeast)
  • Navarro County (east)
  • Limestone County (southeast)
  • McLennan County (south)
  • Bosque County (west)

Demographics