There must be a land classification committee in each county having 25 percent or more of its land area delinquent for nonpayment of taxes, or where 25 percent or more of its land area is owned by the state or the United States. The committee is composed of the county auditor, the chair of the board of county commissioners, the county treasurer, the county surveyor, and the county superintendent of schools. The chair of the board of county commissioners is chair of the county land classification committee. In any county having a county agricultural agent, the agent shall meet and advise with the committee. The committee must meet at the office of the county auditor upon call of the county auditor.