Crook County is a county located in the central region of the state of Oregon. It had a population of about 20,978 at the 2010 census, and its largest city and administrative center is the county seat, Prineville. The county combines semi‑arid plains, river canyons and forested uplands, giving it a mix of agricultural and outdoor recreation uses.

Geography and landscape

Crook County occupies a transition zone between Oregon's high desert and the Blue and Ochoco mountain ranges. Elevations vary from canyon floors carved by the Crooked and Ochoco rivers to higher ridges with pine and juniper woodlands. The climate is generally dry with warm summers and cold winters, supporting cattle ranching, dryland farming and pockets of timber production in higher areas.

History and development

The county was organized in the late 19th century and is named for a military officer associated with the region. Settlement followed trails, ranching claims and later transportation routes. Towns such as Prineville grew as service and county centers for farmers, loggers and miners in surrounding areas.

Economy and land use

The local economy has traditionally relied on agriculture, ranching and timber harvesting. In recent decades Crook County has also seen investment in other sectors, including manufacturing, services and data‑center development, which has diversified employment while keeping a strong rural character.

Recreation, culture and importance

Outdoor recreation—hunting, fishing, hiking, and OHV trails—attracts residents and visitors. Small museums, county fairs and historic downtowns preserve local culture. The county serves as an access point to nearby public lands and scenic canyons important for conservation and tourism.

Notable facts and distinctions

  • Prineville is the county seat and largest community, providing most regional services.
  • The county's mix of high desert and mountainous terrain supports diverse land uses.
  • Demographic and economic shifts in recent decades reflect broader rural trends in the American West.

This overview summarizes Crook County's setting, history and role within central Oregon. For government details, land management and public resources, consult county offices and state agencies.