There was a total of almost $433 million of land and rural real estate for sale in Santa Clara County recently on Land.com. The total of all Santa Clara County farms and ranches for sale was nearly 9,000 acres. Santa Clara County ranks 37th out of 58 counties in the state for the total acreage of land currently advertised for sale. Among cities in Santa Clara County with farms and ranches for sale, Gilroy had the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Santa Clara County. Santa Clara County is California's 38th largest county (1,304 square miles). It's located in the San Francisco Bay Area California region of the state.