Overview

Grant County is a county in the central part of the U.S. state of Washington. The county seat is Ephrata. At the 2010 census the population was about 89,120. The county is widely recognized for its role in large-scale irrigation and river-based projects that transformed semi-arid land into productive farmland and hosted growing communities.

Geography and notable places

The county covers a varied landscape of Columbia River shoreline, lakes, and irrigated plains. Its water infrastructure and reservoirs on the Columbia and associated lakes support agriculture, recreation and industry. Major communities include Moses Lake and Quincy as well as several smaller towns; the county also contains state and federal recreation areas. For maps and planning resources see the county's map pages: county map and the state portal: state information.

History and development

Established in the early 20th century, Grant County was named in honor of Ulysses S. Grant. Its modern character was shaped by mid-20th-century public works, notably the Columbia Basin Project and large dams on the Columbia River, which provided irrigation water and hydroelectric power and enabled an agricultural boom.

Economy and land use

Agriculture is a dominant sector: irrigated fields produce grains, vegetables, seed crops and fruit in various pockets. Hydropower and water management are important to the local economy, and manufacturing, services and aviation-related businesses are present around hubs such as Moses Lake. For demographic and statistical data consult the federal sources: U.S. Census and regional economic reports: national data.

Recreation and transportation

Reservoirs, lakes and public lands offer boating, fishing and hiking opportunities. Several state routes and regional airports connect communities and support commerce. Tourism and outdoor recreation benefit from water-based amenities and nearby public lands.

Government and community

The county government is headquartered in Ephrata and provides services for land use, public safety and infrastructure. Local organizations and agencies coordinate water management, agriculture extension and economic development. For official contacts and county services visit: official county site.

  • Major towns: Ephrata (seat), Moses Lake, Quincy
  • Key features: Columbia River reservoirs, irrigation projects, recreational lakes