Johnson County is in Eastern Iowa. Of the 99 counties in the Hawkeye State, Johnson County is 20th in terms of its size (623 square miles). Iowa's Johnson County has 2,000 acres of farms for sale based on recent Land Network data. The combined market value of farms, ranches, hunting land and other land for sale here was around $18 million. The average price of farms for sale in Johnson County was $3 million. Farms for sale in Johnson County support livestock including cattle, horses and pig. Browse all Iowa farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future commercial or individual needs.