#1Â Country Club Hills
Average Sale Price: $1,650,777
Established from the 1920s to the 1940s on 126 acres of the former Civil War-era Grunwell estate, this wealthy enclave bordering Washington Golf and Country Club (hence its name) is home to politicians, media personalities and sports icons. The prevailing architectural styles include an “Old Arlington” mix of English Tudor, Colonial and Spanish-style residences, as well as many newly-constructed homes and additions.