A combined around 4,000 acres were listed for sale in Duval County, Florida, recently; the combined value of all Duval County farms, rural land, hunting land and other land for sale was around $234 million. Duval County ranks 41st in the Orange State for the total acreage of land currently advertised for sale. Of all farms, rural land, hunting land and other land for sale in Duval County, Jacksonville featured the most land for sale. Duval County is Florida's 27th largest county (918 square miles). It's located in the Northeast Florida region of the state.