The U.S. state of Wyoming has two chambers in its state legislature. Its upper chamber, the Wyoming Senate, has currently 31 single-member districts.

The Wyoming Constitution originally mandated a county-based apportionment scheme. Previously, the state legislature had a mixed system, with both multi-member districts and single-member districts. The state Senate specifically had 9 multi-member districts and 8 single-member districts in the 1990 apportionment plan. In a 1991 federal legal case, Gorin v. Karpan, the court ruled the 1990 apportionment plan was unconstitutional. The ruling determined the district map "created unconstitutionally excessive percentage deviations from the equal population principle" established by the United States Supreme Court's interpretation of the Equal Protection Clause of the Fourteenth Amendment in the landmark 1964 case Reynolds v. Sims.

On February 21, 1992, in response to the ruling in Gorin, the state legislature enacted a new apportionment plan, with a new district scheme. The plan replaced the mixed system with a purely single-member district based system. The state Senate had 30 districts, with two state House districts nested in each one of the state Senate districts. The new districts were drawn without respect to county borders.

In the 2022 apportionment plan for the state legislature, there was an additional state Senate district added to the map.

List of current legislative districts The following is a list of districts in the Wyoming Senate.

Map Counties Party Senator 1st CampbellCrookWeston Rep. Ogden Driskill 2nd ConverseNatrona Rep. Brian Boner 3rd GoshenNiobraraWeston Rep. Cheri Steinmetz 4th Laramie Rep. Tara Nethercott 5th Laramie Rep. Lynn Hutchings 6th LaramiePlatte Rep. Taft Love 7th Laramie Rep. Stephan Pappas 8th Laramie Rep. Jared Olsen 9th Albany Dem. Chris Rothfuss 10th Albany Rep. Gary Crum 11th CarbonSweetwater Rep. Larry S. Hicks 12th Sweetwater Rep. John Kolb 13th Sweetwater Rep. Stacy Jones 14th LincolnSubletteSweetwaterUinta Rep. Laura Pearson 15th Uinta Rep. Wendy Schuler 16th LincolnTeton Rep. Dan Dockstader 17th Teton Dem. Mike Gierau 18th Park Rep. Tim French 19th Big HornPark Rep. Dan Laursen 20th Big HornFremontHot SpringsParkWashakie Rep. Ed Cooper 21st Sheridan Rep. Bo Biteman 22nd JohnsonSheridan Rep. Barry Crago 23rd Campbell Rep. Eric Barlow 24th Campbell Rep. Troy McKeown 25th Fremont Rep. Cale Case 26th Fremont Rep. Tim Salazar 27th Natrona Rep. Bill Landen 28th Natrona Rep. James Lee Anderson 29th Natrona Rep. Bob Ide 30th Natrona Rep. Charles Scott 31st Laramie Rep. Evie Brennan

See also List of Wyoming House of Representatives districts

References