Select market demand area

Distance from center (miles):
Area borders:

Select consumers

Age group:
Market share:

Select timeframe

Units time:
(must be less than one year)

Select fruit/vegetable item(s)

Source of product:
Product group:
Product subgroup:

Select unit of measurement

Unit of measurement:
Number of units:
Cost per unit

For more information

Contact the Leopold Center for Sustainable Agriculture, (515)294-3711,

Funded and published by the Leopold Center for Sustainable Agriculture at Iowa State University. Developed and hosted by the Institute for Transportation at ISU.

Iowa State University

Copyright © 2018, Iowa State University. All rights reserved.


This tool calculates rate of demand for 80 produce crops. To calculate results, select a central market location (within Iowa), consumers, time period, products, and units of measure.

Results are shown in adjoining tabs. Your selections are shown next to the map.

To begin your calculation, make selections at left, starting at the top. You must select a central location and click outside the box before data will appear. If you change selections after viewing result tabs, you must refresh data.

More details, including how this tool can be used, are in the User's Guide

Sources of data and supplemental information