Land for sale in Chelan County recently totaled nearly $79 million and almost 3,000 acres. Chelan County ranks 15th in Washington for the total acreage of land currently advertised for sale. Of all locations in Chelan County with farms, ranches, and rural real estate for sale, Chelan featured the most land for sale. Based on its natural assets, tourism and recreation are important contributors to the Chelan County economy. Chelan County is one of the ten largest counties in Washington (2,994 square miles). It's located in the Cascade Range Washington region of the state.