The Official Website of Platte County, Wyoming

County Offices Closed

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County offices will be closed on Monday, January 2nd, 2023 in observance of New Year's Day.

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.