The Iowa Land Value Survey was initiated in 1941 and is sponsored by the Iowa Agriculture and Home Economics Experiment Station, Iowa State University. Only the state average and the district averages are based directly on the Iowa State survey data. The county estimates are derived using a procedure that combines survey results with data from the U.S. Census of Agriculture.
The survey is based on reports by licensed real estate brokers and selected individuals considered knowledgeable of land market conditions. The 2013 survey is based on 476 usable responses providing 674 county land value estimates. The survey is intended to provide information on general land value trends, geographical land price relationships and factors influencing the Iowa land market. It is not intended to provide an estimate for any particular piece of property.