The Official Website of Platte County, Wyoming

Columbus Day Holiday

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Location Information

Platte County Public Health will be closed on 10/12/2026 in observance of the Columbus Day Holiday

Organized in 1911, Platte County is a rural county in Wyoming. Our mission is to deliver high-level services for each of our citizens and visitors. The County Courthouse is located at 800 9th Street in Wheatland.