County Seal

County Info

Area

  • Total 5,890 km2 (2,274 sq mi)
  • Land 5,750 km2 (2,221 sq mi)
  • Water 140 km2 (54 sq mi)

Population (April 1, 2010)[2]

  • Total 54,179
  • Estimate (2016)[3] 54,170
  • Density 9.2/km2 (24/sq mi)

History

Tuolumne County is one of the original counties of California, created in 1850 at the time of statehood. Prior to statehood, it had been referred to as Oro County. Parts of the county were given to Stanislaus County in 1854 and to Alpine County in 1864.