The Iowa State University Land Value Survey was initiated in 1941 and is sponsored annually by Iowa State University. Only the state average and the district averages are based directly on Iowa State University survey data. County estimates are derived using a procedure that combines Iowa State University survey results with data from the US Census of Agriculture. Since 2014, the survey has been conducted by the Center for Agricultural and Rural Development in the Department of Economics at Iowa State University and Iowa State University Extension and Outreach.
The survey is intended to provide information on general land value trends, geographical land price relationships, and factors influencing the Iowa land market. The survey is not intended to provide a direct estimate for any particular piece of property.
The survey is an expert opinion survey based on reports by licensed real estate brokers, farm managers, appraisers, agricultural lenders, county assessors, and selected individuals considered to be knowledgeable of land market conditions. Respondents were asked to report for more than one county if they were knowledgeable about the land markets. The 2021 Iowa State University Land Value Survey is based on 645 usable county-level land value estimates provided by 455 agricultural professionals.