Phillips County covers a small area on Colorado’s northeastern border with Nebraska. As of the 2020 census, the population was 4,530, with just six people per square mile. Holyoke, the county seat, had a population of 2,346 at the 2020 census.
The county was named in honor of Lincoln Land Company secretary R.O. Phillips who was instrumental in the formation of several Colorado towns.
Visit the Phillips County Government website.
County Towns
Adjacent Counties
