Of 16 counties in the Pine Tree State, Kennebec County ranks 12th in terms of size (951 square miles). Kennebec County is in Southwest Maine. Recent Land Network data totals about 1,000 acres of farms for sale in Maine's Kennebec County, which is valued at a combined $265,000. Browse all Kennebec County 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 business or lifestyle needs. The most common type of land for sale by combined acreage in Kennebec County is house.