From the Iowa GOP:

Marion County (1507 Total):
Donald Trump – 46.45% (700)
Ron DeSantis – 29.2% (440)
Nikki Haley – 17.32% (261)
Vivek Ramaswamy – 6.83% (103)
Ryan Binkley – .93% (14)
Asa Hutchinson – .07% (1)

Warren County (2519 total):
Donald Trump – 51.29% (1292)
Ron DeSantis – 26.52% (668)
Nikki Haley – 15.16% (382)
Vivek Ramaswamy – 6.43% (162)
Ryan Binkley – .36% (9)
Asa Hutchinson – .24% (6)
Click here for more detailed results.