Of 10 counties in the Granite State, Coos County is first in terms of its size (1,830 square miles). Coos County is in North New Hampshire. Recent listings of timberland for sale in Coos County, New Hampshire, totals roughly 1,000 acres and a combined market value of approximately $400,000. The most common type of land for sale by combined acreage in Coos County is residential property. Browse all Coos County forest and timberland for sale on the Land Network to find the right timberland acreage for your commercial or individual investment needs. The most common type of land for sale by combined acreage in Coos County is residential property.