Prudential Fox & Roach had the largest market share of residential real estate sales in Chester County between August 2009-July 2010, with 27.48% of the total sales volume and over $950 million in total sales. They sold 1,176 properties for $474.5 million. Weichert Realtors and Long and Foster had the next largest market shares at 5.49% and 5.45% respectively.