Henry County is a county in Iowa. It covers 437 square miles (279,494 acres), which represents less than one percent of the state total. Of the 99 counties in Iowa, Henry County ranks 35th in terms of the size of its population (19,950, according to 2015 Census estimates). Manufacturing and related services provide the main economic inputs to Henry County. Recent data from Lands of America calculates the average value of land for sale in Henry County at $5,913 per acre. The average listing price was $351,207 (the most expensive listing being for $1.3 million) and the median acreage of land for sale in Henry County was 50 acres. Land for sale in Henry County totaled 416 acres and $2.5 million in overall land value, with the city of Mount Pleasant featuring the most land for sale in the county. Farmland was the most common type of land for sale in Henry County.