The company owns and operates 130 manufactured housing communities which are concentrated in the midwest and southeast United States. On June 30, 2003, Sun Communities' portfolio consisted of 44,520 developed sites as well as 7,050 sites suitable for development. Established in 1975, Sun Communities became a publicly owned corporation in December, 1993. The company is a fully integrated real estate investment trust (REIT) listed on the New York Stock Exchange under the symbol: SUI..