Wyo. Stat. § 11-5-103: Composition of districts.

All land within the boundaries of Wyoming including all federal, state, private and municipally owned lands, is hereby included in weed and pest control districts within the county in which the land is located, with the boundaries of the district being the same as the boundaries of the county. Each district shall be known as the ".... County Weed and Pest Control District, State of Wyoming."