The 2020 Utah Republican presidential primary took place on Super Tuesday, March 3, 2020.

Results Incumbent United States President Donald Trump was challenged by five candidates: retired advertising executive Robert Ardini of New York, entrepreneur and investor Bob Ely of Massachusetts, entrepreneur and attorney Matthew John Matern of Louisiana, former congressman Joe Walsh of Illinois, and former governor Bill Weld of Massachusetts. Businessman and perennial candidate Rocky De La Fuente was also initially on the ballot, but later withdrew his name to avoid a 'sore loser' law.

2020 Utah Republican presidential primary Candidate Votes % Estimateddelegates (incumbent)302,75187.79%40 23,652 6.86% 0 (withdrawn) 7,509 2.18% 0 5,751 1.67% 0 3,971 1.15% 0 1,218 0.35% 0 Total 344,852 100% 40

Results by county +2020 Utah Republican primary (results per county)CountyDonald TrumpBill WeldJoe WalshMatthew John MaternRobert ArdiniBob ElyTotal votes castVotes%Votes%Votes%Votes%Votes%Votes%Beaver1,31897.63130.9690.6730.2230.2240.301,350Box Elder7,57490.753674.401802.161231.47740.89280.348,346Cache12,97887.711,0096.823202.162781.881581.07530.3614,796Carbon2,00295.61401.91211.0080.38170.8160.292,094Daggett23591.44145.4551.9510.3910.3910.39257Davis37,48884.843,6788.321,1522.619702.207311.651690.3844,188Duchesne3,60896.89651.75250.67180.4850.1330.083,724Emery1,59096.13311.87211.2750.3060.3610.061,654Garfield1,26494.12302.23292.16130.9750.3720.151,343Grand1,04190.29585.03272.3460.52161.3950.431,153Iron7,77594.362302.791261.53640.78280.34170.218,240Juab1,77195.52402.16180.97110.5990.4950.271,854Kane1,59594.38472.78201.18150.8970.4160.361,690Millard2,71295.43592.08371.3080.28220.7740.142,842Morgan1,85791.16924.52381.87241.18211.0350.252,037Piute46297.2640.8451.0520.4220.4200.00475Rich64695.00131.91131.9140.5920.2920.29680Salt Lake74,98083.418,5149.472,6392.941,9992.221,3031.454610.5189,896San Juan1,68093.54452.51351.95150.84160.8950.281,796Sanpete4,71793.891813.60551.09410.82200.40100.205,024Sevier4,19596.28711.63410.94190.44160.37150.344,357Summit3,43986.363508.79992.49370.93441.10130.333,982Tooele6,36990.263414.831472.081031.46761.08200.287,056Uintah6,33896.75981.50510.78370.56180.2790.146,551Utah61,25886.615,8418.261,3281.881,2721.808271.172010.2870,727Wasatch3,68589.972075.05982.39571.39421.0370.174,096Washington27,94994.737692.613331.131980.671840.62710.2429,504Wayne69393.90263.5270.9530.4150.6840.54738Weber21,53288.241,4195.826302.584171.713131.28910.3724,402Total302,75187.7923,6526.867,5092.185,7511.673,9711.151,2180.35344,852

See also 2020 Utah Democratic presidential primary

References