Of 58 counties in the Land of Milk and Honey, Trinity County is 19th in terms of its size (3,207 square miles). Trinity County is in Shasta Cascade California. Trinity County, California, has approximately 1,000 acres of riverfront homes and property for sale based on recent Land Network data. The combined market value of land for sale here was $1 million. Browse all waterfront property for sale in Trinity County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits! The most common type of land for sale by combined acreage in Trinity County is house.