Sotheby's International Realty, Sonoma represents extraordinary real estate in California's Wine Country, featuring some of the most exquisite luxury properties throughout this idyllic destination. A historic town of approximately 10,000 people, Sonoma is the hub of Sonoma Valley. Ringed by world-class wineries and scenic vineyards, this friendly town is a popular place to visit. The downtown square is laid out in the old Spanish pueblo style, with mission San Francisco de Solano (est. 1823) sitting on the northeast corner. California’s wine industry was born in the Sonoma Valley more than 100 years ago, established by immigrants who recognized the natural abundance the land brought forth. People from all over the world flock to Sonoma Valley to enjoy the exquisite food and wine this area has to offer.