Incumbent Rich Bostwick faces a challenge from opponent Spencer Zimmerman for his District 24 seat on the Rock County Board on April 7.

Rich Bostwick (I)

Age: 64.

Address: 61 Harrison St., Janesville.

Education: Bachelor of Science degree in education and Master of Education degree from UW-Whitewater; attended post-graduate classes at St. Mary's University.

Job: On-site coordinator at WorldStrides.

Community service: GIFTS Men's Shelter, Meals on Wheels, Janesville Urban Forest Alliance, Friends of Rockport Park and Above & Beyond Dog Rescue.

Elected posts: Rock County Board supervisor since 2006.

Major campaign issues: Rock County has many important issues, chief among them for me is the commitment to keeping Rock Haven a model public nursing home, continuing the successful PACE farmland preservation program, continued efforts to solve the high nitrate levels in drinking water and making county buildings as safe as possible.

Spencer Zimmerman

Age: 40.

Address: 462 S. Randall Ave. No. 3, Janesville.

Education: Associate degree in information systems technology from Community College of the Air Force and a Bachelor of Business Administration degree from Edgewood College.

Job: 2020 Census enumerator and presidential limousine service.

Community service: Four years of active study in the U.S. Air Force.

Elected posts: None.

Major campaign issue: Rock County is facing "$150,000 in borrowing and debt from overhaul of county property. I will work to reduce debt, which if left unchecked will cost taxpayers in interest and principal. Then we can provide services to those in need, build our reserves and work toward a AAA bond rating."