Garfield County is one of the 64 counties in the U.S. state of Colorado. As of the 2010 census, the population was 56,389. The county seat is Glenwood Springs. The county is named in honor of United States President James A. Garfield.Garfield County is included in the Glenwood Springs, CO Micropolitan Statistical Area, which is also included in the Edwards-Glenwood Springs, CO Combined Statistical Area.GeographyAccording to the U.S. Census Bureau, the county has a total area of, of which is land and (0.3%) is water.Adjacent countiesRio Blanco County - northRoutt County - northeastEagle County - eastPitkin County - southeastMesa County - southGrand County, Utah - southwestUintah County, Utah - northwest