20. Arlington, MassachusettsArlington, Massachusetts. Demetri2K/Getty Images Median housing cost: $1,100,000Population: 46,30819. Needham, MassachusettsWellesley, Massachusetts, pictured here, borders Needham. Denis Tangney Jr./Getty Images Median housing cost: $1,375,000Population: 32,091 18. Downers Grove, IllinoisDowners Grove, Illinois. Patricia Ybarra/Getty Images Median housing cost: $483,000Population: 49,70617. Saratoga Springs, New YorkSaratoga Springs, New York robertcicchetti / iStock Median housing cost: $742,500Population: 28,544 16. Kaysville, UtahKaysville, Utah. raclro/Getty Images Median housing cost: $754,500Population: 32,94115. Castle Rock, ColoradoCastle Rock, Colorado. Shutterstock Median housing cost: $656,000Population: 81,415 14. Noblesville, IndianaThe Hamilton County courthouse building in Noblesville, Indiana Purdue9394/Getty Images Median housing cost: $394,500Population: 73,91613. Leesburg, VirginiaLeesburg, Virginia. Gerville/Getty Images Median housing cost: $741,250Population: 49,312 12. Fair Lawn, New JerseyPaterson, New Jersey, pictured here, borders Fair Lawn and is a 20-minute drive from New York City. iShootPhotosLLC/Getty Images Median housing cost: $630,000Population: 35,56411. Milton, MassachusettsBoston, Massachusetts, pictured here, is a 20-minute drive from Milton. Shutterstock Shutterstock Median housing cost: $1,025,000Population: 28,630 10. Westfield, IndianaWestfield, Indiana. Michael Sinclair/The City of Westfield Median housing cost: $421,000Population: 57,7469. Bozeman, MontanaBozeman, Montana. Hannah Lorsch/Shutterstock Median housing cost: $685,000Population: 57,305 8. Lancaster, PennsylvaniaLancaster, Pennsylvania. Christian Hinkle/Shutterstock Median housing cost: $236,000Population: 18,6777. Brentwood, TennesseeBrentwood, Tennessee. Brentwood, Tennessee. Facebook/City of Brentwood, Tennessee Local Government Median housing cost: $1,200,000Population: 45,265 6. Apex, North CarolinaA home in Apex, North Carolina. Malcolm MacGregor/Getty Images Median housing cost: $660,000Population: 72,2255. Appleton, WisconsinAppleton, Wisconsin. Appleton Downtown/Facebook Median housing cost: $260,000Population: 74,719 4. Fishers, IndianaFishers, Indiana. Getty Images Median housing cost: $415,000Population: 104,0943. Lexington, MassachusettsLexington, Massachusetts. bpperry/Getty Images Median housing cost: $1,600,000Population: 34,454 2. Brookfield, WisconsinBrookfield, Wisconsin. Getty Images Median housing cost: $462,500Population: 41,8841. Carmel, IndianaCarmel, Indiana. Michael Godek/Getty Images Median housing cost: $479,500Population: 102,296