Union County Iowa Land Information
Explore farmland opportunities in Union County, Iowa. This page provides average land values, auction history, CSR2 ratings, crop yields, and local agricultural resources to help you make informed farmland decisions. If you have questions or would like a FREE farm appraisal, contact your local Union County land expert.
Location: Southwest Iowa
Average Farmland Value: $7,377.27 per acre. For the most up-to-date value or a personalized farm evaluation, contact Land Broker David Whitaker at 515-996-LAND (5263).
Average Farmland Value for Iowa: $11,400 per acre
Land Auctions in 2025 (as of April 2025)
Union County recorded 1 farmland auction totaling 113.41 acres. The average price was $5,700 per acre, with an average of $149 per CSR2 point.
2024 Land Auctions
In 2024, 10 farmland auctions sold 1,068.16 acres. The average farmland price was $7,545 per acre, with $128.56 per CSR2 point.
2023 Land Auctions
Four farmland auctions in 2023 totaled 469.75 acres. The average price was $6,687.50 per acre, with $124 per CSR2 point.
2022 Land Auctions
Six farmland auctions sold 624.63 acres. The average price reached $7,761.67 per acre, with $164.83 per CSR2 point.
2021 Land Auctions
Union County recorded six farmland auctions totaling 788.25 acres. The average price was $7,303.50 per acre, with $115.33 per CSR2 point.
2020 Land Auctions
Six farmland auctions sold 685.78 acres. The average price was $5,587.50 per acre, with $348 per CSR2 point.
County Agricultural Data
- Average CSR2 Rating: 63.2
- 2023 USDA Average Corn Yield: 217 bushels per acre
- 2023 USDA Average Soybean Yield: 59.9 bushels per acre
- ISU Average Cash Rent per Acre: $203
- ISU Average Pasture Rent per Acre: $50–$100
Towns in Union County
Creston, Afton, Lorimor, Cromwell, Arispe, Shannon City, Thayer, Kent
Adjacent Counties
Adair,
Madison,
Clarke,
Ringgold,
Adams
County Seat
Additional County Resources
- County Website: Union County Website
- Farm Service Agency: Union County FSA Office
- County Assessor: Access parcel data, ownership records, and recent sales via the Assessor Page.
FREE Farm Appraisal
If you’re researching farmland values, complete our contact form or call Land Broker David Whitaker at 515-996-LAND (5263) for a complimentary farmland appraisal.
Union County History
Union County was established in 1853 and is located in south-central Iowa. As of the 2020 census, the county population was 12,138. The county was named to reflect the desire to preserve the Union. The current Union County Courthouse in Creston was completed in 1952. Additional historical details are available on Wikipedia.

Location of Union County highlighted on the Iowa state map.