Yellowstone County

Yellowstone County, Montana

217 N 27th St Rm 401
Billings, MT 59101
Phone: (406) 256-2785
Fax: (406) 256-2736
www.co.yellowstone.mt.us

In south-central MT; organized Feb 26, 1883 from Custer County. Name Origin: For the Yellowstone River, which flows through the county

Area (sq mi):: 2649.05 (land 2635.15; water 13.90) Population per square mile: 51.90
Population 2005: 136,691 State rank: 1 Population change: 2000-20005 5.70%; 1990-2000 14.00% Population 2000: 129,352 (White 91.00%; Black or African American 0.40%; Hispanic or Latino 3.70%; Asian 0.50%; Other 6.30%). Foreign born: 1.40%. Median age: 36.90
Income 2000: per capita $19,303; median household $36,727; Population below poverty level: 11.10% Personal per capita income (2000-2003): $26,404-$29,421
Unemployment (2004): 3.50% Unemployment change (from 2000): 0.20% Median travel time to work: 17.90 minutes Working outside county of residence: 3.30% Cities with population over 10,000:
  • Billings County seat (96,977)
    • See other counties in Montana.