There are 4 zip codes in Phillips County, Colorado. The most populated is 80734, located in Holyoke. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
807343,057Holyoke
807311,397Haxtun
80721304Amherst
8074661Paoli
showing: 4 rows

Zip Codes in Phillips County, Colorado by Population (2024)