Board of Supervisors
Comprised of three members elected countywide to four year terms, the Board of Supervisors has the authority to adopt legislation, set County operating policies, approve the annual budget for all departments and functions, and is the only entity that can enter contractual obligations on behalf of the County.
Public meetings are held each Wednesday in the courthouse second-floor boardroom from 8:30 a.m. until noon, or when the agenda is completed.
Closed sessions are permitted for purposes described in Code of Iowa Chapter 21, where it is necessary or advisable to protect the interests of individuals or the County.
Citizens can request to be on the agenda by contacting Julie Hinman, Board Secretary, at jhinman@boonecounty.iowa.gov or 515-433-0500. Citizens may also address the Board without an appointment by waiting for open and unscheduled agenda time, which is not guaranteed to be available.
In addition to scheduled meetings, individual board members are available to the public from 9:00 a.m. to 11:00 a.m. on Monday, Tuesday, and Thursday of each week.
Board Members
Bill ZinnelChairman
515-433-4933
bzinnel@boonecounty.iowa.gov Bio & Office Hours
Bill Zinnel
First elected a Boone County Supervisor in 2016, Bill was elected to a second term in 2020.
Bill grew up in a northwest Iowa farming family and went on to earn a degree in Agricultural Business from Iowa State University.
Upon graduation, he began a banking career in Pella, Iowa, before moving to Boone in 1983 to become an agricultural lender at Citizens National Bank. He eventually served 20 years as Senior Vice President of Ag and Commercial Lending at Boone Bank & Trust Co., retiring in 2019 to fully dedicate his time to serving as a Boone County Supervisor.
In addition to his banking career, Bill has also served several community organizations, including 29 years with the Boone Noon Kiwanis Club, the Boone County Endowment Board, the Boone County Compensation Committee, the Boone County Condemnation Board, the Boone County Chamber of Commerce Board, the Boone County Fair Board and the Boone County Hospital Foundation Board.
Bill’s goals include making Boone County the best it can be while remaining responsible for protecting taxpayers’ money. He finds the supervisor position to be interesting with great diversity in responsibilities.
Bill Zinnel is available to the public during open office hours on Tuesdays from 9:00 to 11:00 a.m. in the courthouse second-floor boardroom.
Term Expires: 2024
Representative Appointments
Representative Appointments
Bill Zinnel is also appointed to the following committees/boards, and is a liaison for other county departments:
- Ames Area MPO - Transportation Policy Committee
- Central Iowa Regional Transportation Planning Alliance (CIRTPA)
- Boone County Economic Growth Corp. Board of Directors
- Heart of Iowa Regional Transit Agency (HIRTA) Board of Directors
- IMPACT Community Action Partnership Board of Directors
- Lowery Foundation Board of Directors
- Boone County Trails Advisory Committee (Alternate)
- Ogden Legacy Board of Directors (Alternate)
- Central Iowa Juvenile Detention Center Board of Directors (Alternate)
- Central Iowa Workforce Development Board of Directors (Alternate)
Erich KretzingerSupervisor
515-433-4934
ekretzinger@boonecounty.iowa.gov Bio & Office Hours
Erich Kretzinger
Erich Kretzinger was elected in 2020, and named Boone County's first Certified Iowa County Supervisor by the Iowa State Association of County Supervisors in 2022.
A native of Jefferson and graduate of The University of Iowa College of Business Administration, professional experience includes executive director of a chamber of commerce and industrial development corporation, before coming to Boone in 1987 to serve as Marketing Director at Citizens National Bank. His career went on to include twenty years owning two regional office services companies with a footprint that eventually encompassed a third of Iowa.
Erich would go on to serve ten years as executive director with Heart of Iowa Habitat for Humanity, a non-profit Christian housing ministry serving Boone, Greene and Guthrie Counties. Here he led development of an innovative home repair program today offered by Habitat for Humanity affiliates across the nation.
Volunteer leadership experience includes the Habitat for Humanity of Iowa Board of Directors, the Central Iowa Regional Housing Authority Executive Board along with multiple local boards of directors, including Mamie Eisenhower Birthplace, Boone Area Merchants Association and Boone Area Chamber of Commerce. He has served multiple terms on the Augustana Lutheran Church Council, including several years as Congregation President.
Erich’s goals as supervisor include promoting transparency through public communication, protecting people and property through effective law enforcement, expanding cooperation with our cities, continued progress on improving secondary roads, and consistent effort to bring more of our state and federal tax dollars back home.
Erich Kretzinger is available to the public during open office hours on Mondays from 9:00 to 11:00 a.m. in the courthouse second-floor boardroom.
Term Expires: 2024
Representative Appointments
Representative Appointments
Erich Kretzinger is also appointed to the following committees/boards, and is a liaison for other county departments:
- Central Iowa Community Services Governing Board
- Boone/Dallas County DECAT Board of Directors
- Ogden Legacy Board of Directors
- Central Iowa Workforce Development Executive Board of Directors
- Boone County Economic Growth Board of Directors (Alternate)
- IMPACT Community Action Partnership Board of Directors (Alternate)
- Joint Communication Center Governing Board (Alternate)
- Boone County Emergency Management Agency Board (Alternate)
- Boone County 911 Service Board (Alternate)
- Boone County Board of Health (Alternate)
- Central Iowa Expo Board of Directors (Alternate)
Shawn BryantSupervisor
515-433-4935
sbryant@boonecounty.iowa.gov Bio & Office Hours
Shawn Bryant
Elected a Boone County Supervisor in 2022, Shawn has an extensive background in corrections, law enforcement and the military. A combat veteran of both Iraq and Afghanistan and a Bronze Star recipient, today Shawn is retired from the Iowa National Guard.
Shawn is a native Iowan with over 30 years’ experience in leadership and making tough decisions. Outside of his service to Boone County, current and past volunteer activities include Pack Committee Chair of Cub Scout Pack 155, Boone County Planning and Zoning Commission, Boone Green Space Committee, Boone County Sheriff's Reserve Program, Boone County Comprehensive Plan Steering Committee, and Boone County Search and Rescue.
A strong believer in protecting our environment, Shawn and his family maintain a four-mile stretch of Boone County roadway through participation in the Adopt-A-Road program.
Shawn’s leadership goals with Boone County include demonstrating fiscal responsibility, cooperation with our cities, equal pay for equal work, protection of our people through effective law enforcement, and veteran support.
Shawn Bryant is available to the public during open office hours on Thursdays from 9:00 to 11:00 a.m. in the courthouse second-floor boardroom.
Term Expires: 2026
Representative Appointments
Representative Appointments
Shawn Bryant is also appointed to the following committees/boards, and is a liaison for other county departments:
- Boone County Board of Health
- Emergency Management Agency Board of Directors
- Joint Communications Center Board of Directors
- E911 Service Board
- Central Iowa Expo Board of Directors
- Central Iowa Juvenile Detention Board
- Boone County Trails Advisory Committee
- Boone/Dallas Counties DECAT Board of Directors (Alternate)
- Ames Area MPO Transportation Board (Alternate)
- Central Iowa Regional Transportation planning Board (Alternate)
- Central Iowa Community Services Board (Alternate)
- Heart of Iowa Regional Transit Agency (HIRTA) Board of Directors (Alternate)
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