Phillips County is in Northeast Colorado. Of the 64 counties in the Rocky Mountain State, Phillips County is 54th in terms of its size (688 square miles). A recent survey of Land Network data totals 1,000 acres of residential land for sale in Colorado's Phillips County, which is valued at a combined $4 million. The average price of residential acreage for sale in Phillips County was $407,536. The economy here is largely agricultural. Browse all residential land and rural property for sale in Colorado to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.