Christensen RealtyUSA, located in the heart of the Thousand Islands Regions of New York State, is a full service real estate company focused on customer service. Whether you're looking to buy or sell, trust their experienced staff to handle all your real estate needs. Search through our listings including island properties, mainland cottages, farms, village & country homes, and business opportunities. Christensen RealtyUSA is a member of the Jefferson/Lewis County Board of Realtors, the New York State Association of Realtors, the National Association of Realtors and the Multiple Listing Service.