Monroe County Republican Party Share: Community - GovernmentCommunity - Non-Profit and Civic Organizations Monroe County Republican Party Visit Website Request Info PO Box 146 Sparta, WI 54656 (608) 853-3182 Facebook About Map About Citizens group for conservative ideals and issues that is committed to upholding the Republican values. What's Nearby? Distance: 5 10 15 20 25 50 mi.