What city is ZIP code 81638 in?

ZIP code 81638 is in Hamilton, CO.

What state is ZIP code 81638 in?

ZIP code 81638 is in Colorado (CO).

ZIP code 81638 is in the Denver timezone.

The population of ZIP code 81638 is approximately 94 according to the US Census Bureau ACS 2023.

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Hamilton, CO

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3 ZIP codes within 25 miles of 81638, Hamilton