Allen Parish is in Cajun Country Louisiana. Of the 64 counties in the Pelican State, 490,187-acre Allen Parish ranks 28th by size. The total value of roughly 1,000 acres of residential land recently listed for sale in Louisiana's Allen Parish was almost $2 million. The average price of residential land for sale in Allen Parish was $177,630. Browse all residential land and rural property for sale in Louisiana to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.