Phillips County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 4,530. The county seat is Holyoke. The county was named in honor of R.O. Phillips, a secretary of the Lincoln Land Company, which organized several towns in Colorado.
Geography
thumbnail|left|Entering Phillips County from the west on U.S. Highway 6.
According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.02%) is water.
Adjacent counties
- Sedgwick County—north
- Perkins County, Nebraska—northeast
- Chase County, Nebraska—east
- Yuma County—south
- Logan County—west
Major highways
- 20px U.S. Highway 6
- 20px U.S. Highway 385
- 20px State Highway 23
- 20px State Highway 59