Iowa's 12th Senate district
The 12th District of the Iowa Senate is located in southwestern Iowa, and is currently composed of Fremont, Mills, Montgomery, Page, Ringgold, and Taylor Counties. Current elected officials. Mark Costello is the senator currently representing the 12th District. The area of the 12th District contains two Iowa House of Representatives districts: The district is also located in Iowa's 3rd congressional district, which is represented by U.S. Representative Cindy Axne. Past senators. The district has previously been represented by: