Of 64 counties in the Bayou State, Allen Parish ranks 28th in terms of size (765 square miles). Allen Parish is in Cajun Country Louisiana. A recent survey of Land Network data includes about 1,000 acres of ranches for sale in Louisiana's Allen Parish, which is valued at a combined $3 million. Browse all Allen Parish ranches for sale on the Land Network to find the ranch that's right for your business or commercial needs, from the sprawling legacy ranch to unbelievable residential ranch for your second home, investment property or retirement nest egg. The most common type of land for sale by combined acreage in Allen Parish is undeveloped land.