These days, buyers dreaming of moving into large homes may be disappointed to find that properties are getting smaller, a result of modesty in the economic downturn and increased attention to efficient homes. The average size of single-family homes declined slightly to 2,377 sq. ft. last year from a peak of 2,521 sq. ft. in 2007, according to U.S. Census Bureau estimates. By 2015, builders surveyed by the National Association of Home Builders expect the average home to shrink by another 10 percent to 2,152 sq. ft. Luckily for those who won't settle for a place with less than seven bathrooms, colossal homes have not disappeared. Listing data from Altos Research, a real-time real estate data company based in Mountain View, Calif., show many residential areas outside of urban centers have an ample supply of large homes, most measuring at least twice the national average. Based on the median square footage of homes for sale in 20,000 Zip Codes and 200 metro areas, Greater Pittsburgh had the largest number of areas with big houses, followed by Rancho Santa Fe, Calif., and Coral Gables, Fla.

Click here to see the 25 areas with the biggest homes for sale.
Castles By The Beach Realty/McEwen Marketing Chicago Group/Morris and Fyrwald Sotheby's International Realty
These days, buyers dreaming of moving into large homes may be disappointed to find that properties are getting smaller, a result of modesty in the economic downturn and increased attention to efficient homes. The average size of single-family homes declined slightly to 2,377 sq. ft. last year from a peak of 2,521 sq. ft. in 2007, according to U.S. Census Bureau estimates. By 2015, builders surveyed by the National Association of Home Builders expect the average home to shrink by another 10 percent to 2,152 sq. ft. Luckily for those who won't settle for a place with less than seven bathrooms, colossal homes have not disappeared. Listing data from Altos Research, a real-time real estate data company based in Mountain View, Calif., show many residential areas outside of urban centers have an ample supply of large homes, most measuring at least twice the national average. Based on the median square footage of homes for sale in 20,000 Zip Codes and 200 metro areas, Greater Pittsburgh had the largest number of areas with big houses, followed by Rancho Santa Fe, Calif., and Coral Gables, Fla.

Click here to see the 25 areas with the biggest homes for sale.
Castles By The Beach Realty/McEwen Marketing Chicago Group/Morris and Fyrwald Sotheby's International Realty

U.S. Zip Codes with the Biggest Houses

Living Large
Living Large
These days, buyers dreaming of moving into large homes may be disappointed to find that properties are getting smaller, a result of modesty in the economic downturn and increased attention to efficient homes. The average size of single-family homes declined slightly to 2,377 sq. ft. last year from a peak of 2,521 sq. ft. in 2007, according to U.S. Census Bureau estimates. By 2015, builders surveyed by the National Association of Home Builders expect the average home to shrink by another 10 percent to 2,152 sq. ft. Luckily for those who won't settle for a place with less than seven bathrooms, colossal homes have not disappeared. Listing data from Altos Research, a real-time real estate data company based in Mountain View, Calif., show many residential areas outside of urban centers have an ample supply of large homes, most measuring at least twice the national average. Based on the median square footage of homes for sale in 20,000 Zip Codes and 200 metro areas, Greater Pittsburgh had the largest number of areas with big houses, followed by Rancho Santa Fe, Calif., and Coral Gables, Fla.

Click here to see the 25 areas with the biggest homes for sale.
Castles By The Beach Realty/McEwen Marketing Chicago Group/Morris and Fyrwald Sotheby's International Realty
No. 25 Zip Code with Biggest Homes for Sale: Park City, Utah, 84060
No. 25 Zip Code with Biggest Homes for Sale: Park City, Utah, 84060
Median size*: 4,759 sq. ft.
Median no. bedrooms*: 5
Median no. bathrooms*: 5
No. homes for sale*: 99
Median list price*: $1,425,000

Park City, a popular skiing destination, has some of Utah's largest homes. For example, the 22,000 sq. ft., 12-bedroom Huntsman Estate (pictured above) at 5000 Royal St., listed for $42.8 million, sits on 60 acres, according to Summit Sotheby's International Realty. The house belongs to billionaire industrialist and philanthropist Jon Huntsman Sr., who is the father of possible GOP Presidential candidate Jon Huntsman Jr.

Source on all slides: Altos Research, as of May 6, 2011.
Sotheby's International Realty
No. 24 Zip Code with Biggest Homes for Sale: Houston, 77024
No. 24 Zip Code with Biggest Homes for Sale: Houston, 77024
Median size: 4,806.5 sq. ft.
Median no. bedrooms: 4
Median no. bathrooms: 4.5
No. homes for sale: 231
Median list price: $1,295,000

This section of Houston includes Piney Point Village, Hunters Creek Village, Bunker Hill Village, and Hedwig Village, according to neighborhoodscout.com. The 11,626 sq. ft., five-bedroom home pictured above, 11115 N. Country Squire St., is listed for $2,150,000, according to John Daugherty Realtors.
John Daugherty Realtors
No. 23 Zip Code with Biggest Homes for Sale: Bethesda, Md., 20817
No. 23 Zip Code with Biggest Homes for Sale: Bethesda, Md., 20817
Median size: 4,809.5 sq. ft.
Median no. bedrooms: 5
Median no. bathrooms: 3
No. homes for sale: 190
Median list price: $1,099,950

In this affluent community northwest of Washington, D.C., the median household income is $126,414, according to U.S. Census Bureau estimates. Many homes in the area were built before 1980, according to Census data. The 9,178 sq. ft., five-bedroom home pictured above, 7017 Natelli Woods Lane, is on the market for $1,795,000, according to listing agent Ashton Vessali.
Weichert Realtors
No. 22 Zip Code with Biggest Homes for Sale: Aspen, Colo., 81611
No. 22 Zip Code with Biggest Homes for Sale: Aspen, Colo., 81611
Median size: 4,844 sq. ft.
Median no. bedrooms: 4
Median no. bathrooms: 5
No. homes for sale: 197
Median list price: $5,500,000

This area has includes many large, luxury estates and ski homes. The five-bedroom home at 1430 Silverking Drive (pictured above) measures 6,271 sq. ft., and is for sale for $5,295,000, according to a listing from Morris & Fyrwald Sotheby's International Realty. There are many larger homes in the Aspen area.
Sotheby's International Realty
No. 21 Zip Code with Biggest Homes for Sale: Mars, Pa., 16046
No. 21 Zip Code with Biggest Homes for Sale: Mars, Pa., 16046
Median size: 4,905 sq. ft.
Median no. bedrooms: 4
Median no. bathrooms: 3.5
No. homes for sale: 79
Median list price: $397,500

The area covered by Zip Code 16046 includes Mars, a small town that is part of Adams Township in Butler County about 25 miles from downtown Pittsburgh. It has a population of about 1,700. Many homes in Mars were built before 1939, though many of the larger homes for sale are newer, show listings on Zillow.com. The four-bedroom home in the photo, 227 Longbow Lane, is 3,780 sq. ft. and has a four-car garage, according to Century 21 Town & Country Real Estate Services.
CENTURY 21 Town & Country Real Estate Services
No. 20 Zip Code with Biggest Homes for Sale: Gibsonia, Pa., 15044
No. 20 Zip Code with Biggest Homes for Sale: Gibsonia, Pa., 15044
Median size: 4,976 sq. ft.
Median no. bedrooms: 4
Median no. bathrooms: 3
No. homes for sale: 171
Median list price: $339,000

The town of Gibsonia is near other areas with big homes such as Wexford and Sewickley. According to listings on Zillow.com, the largest homes for sale are in the western part of this Zip Code, by Wexford. The home at 2161 S. Villa Drive (pictured above) is on the market for $739,500 and measures approximately 8,100 sq. ft., according to a listing by Coldwell Banker.
Coldwell Banker Real Estate Services
No. 19 Zip Code with Biggest Homes for Sale: McLean, Va., 22102
No. 19 Zip Code with Biggest Homes for Sale: McLean, Va., 22102
Median size: 4,992 sq. ft.
Median no. bedrooms: 5
Median no. bathrooms: 4
No. homes for sale: 113
Median list price: $1,899,999

McLean is a wealthy area in northern Virginia, about 15 miles from D.C., with median household income of $156,943, according to Census Bureau estimates. The 10,402 sq. ft., six-bedroom home pictured above, 8020 Greenwich Woods Drive, is listed for $2,199,000, according to real estate firm Wellborn Management.
WELLBORN MANAGEMT
No. 18 Zip Code with Biggest Homes for Sale: Beverly Hills, Calif., 90210
No. 18 Zip Code with Biggest Homes for Sale: Beverly Hills, Calif., 90210
Median size: 4,995 sq. ft.
Median no. bedrooms: 4
Median no. bathrooms: 5
No. homes for sale: 226
Median list price: $4,150,000

Not only are the homes in Beverly Hills, 90210 among the most expensive in the U.S., they are also among the largest. Pictured above, 11960 Crest Place is listed for $3,695,000 (below the median price) and measures 7,057 sq. ft., according to the Valerie Fitzgerald Group. That may be plenty of space, but there are many larger homes in the area, including real estate mogul C. Frederick Wehba Sr.'s marble mansion at 9577 Sunset Blvd., which measures 36,000 sq. ft., show property data.
Valerie Fitzgerald Group
No. 17 Zip Code with Biggest Homes for Sale: Purchase, N.Y., 10577
No. 17 Zip Code with Biggest Homes for Sale: Purchase, N.Y., 10577
Median size: 5,008 sq. ft.
Median no. bedrooms: 5
Median no. bathrooms: 5
No. homes for sale: 61
Median list price: $2,195,000

The median household income in Harrison, the Westchester County town where the hamlet of Purchase is located, is about $104,640, estimates the U.S. Census Bureau. The home pictured above is a 7,600 sq. ft. home at 4 Fairway Drive, according to a listing by Julia B. Fee Sotheby's International Realty. Another home in the area, listed for $3.375 million, measures 43,996 sq. ft.
Sotheby's International Realty
No. 16 Zip Code with Biggest Homes for Sale: Boca Raton, Fla., 33432
No. 16 Zip Code with Biggest Homes for Sale: Boca Raton, Fla., 33432
Median size: 5,025 sq. ft.
Median no. bedrooms: 4
Median no. bathrooms: 4.5
No. homes for sale: 228
Median list price: $1,635,000

Many large waterfront homes occupy 33432, a wealthy corner in southeast Boca Raton. This area is home to the Royal Palm Country Club and Boca Raton Resort & Club. The home pictured above, 150 NE Fifth Ave., is 12,497 sq. ft., and is listed for $7,995,000, according to Castles By The Beach Realty.
Castles By The Beach Realty
No. 15 Zip Code with Biggest Homes for Sale: South Barrington, Ill., 60010
No. 15 Zip Code with Biggest Homes for Sale: South Barrington, Ill., 60010
Median size: 5,110 sq. ft.
Median no. bedrooms: 5
Median no. bathrooms: 5
No. homes for sale: 91
Median list price: $1,195,000

South Barrington, about 35 miles from downtown Chicago, has a median household income of $205,035, estimates the U.S. Census Bureau. The village was incorporated in 1959 and many of the homes in the area were built from 1980 to 1999, according to the Census. The home at 16 Star Lane, for sale for $5.5 million, is 14,549 sq. ft. with an additional 9,000 sq. ft. below ground, according to agent Steve McEwen.

Note: A nearby area—Barrington Hills, 60010—was in the top 25 places with the biggest homes, but only one place from each Zip Code was included in this list.
McEwen Marketing Chicago Group
No. 14 Zip Code with Biggest Homes for Sale: Sewickley, Pa., 15143
No. 14 Zip Code with Biggest Homes for Sale: Sewickley, Pa., 15143
Median size: 5,257 sq. ft.
Median no. bedrooms: 4
Median no. bathrooms: 3
No. homes for sale: 180
Median list price: $517,450

About 15 miles from downtown Pittsburgh, this area has many large homes by Sewickley Heights and Edgeworth. The 10,246 sq. ft., seven-bedroom house above, 745 Chestnut Road, is listed for $1,199,000, according to Prudential Preferred Realty agent Joseph Zemba.
PRUDENTIAL PREFERRED REALTY
No. 13 Zip Code with Biggest Homes for Sale: Greenwich, Conn., 06831
No. 13 Zip Code with Biggest Homes for Sale: Greenwich, Conn., 06831
Median size: 5,300 sq. ft.
Median no. bedrooms: 5
Median no. bathrooms: 5
No. homes for sale: 233
Median list price: $3,095,000

The wealthy town of Greenwich, where median household income is $122,092, according to Census Bureau estimates, has many large houses. The home above, 2 Indian Knoll Place, measures more than 10,000 sq. ft. and is on the market for $2,995,000, according to the listing from Prudential Connecticut Realty. An even larger 17,121 sq. ft. manor at 164 Round Hill Road is for sale for $19,495,000, according to Coldwell Banker listings.
Prudential CT Realty
No. 12 Zip Code with Biggest Homes for Sale: Paradise Valley, Ariz., 85253
No. 12 Zip Code with Biggest Homes for Sale: Paradise Valley, Ariz., 85253
Median size: 5,330 sq. ft.
Median no. bedrooms: 4
Median no. bathrooms: 5
No. homes for sale: 336
Median list price: $1,839,500

Affluent Paradise Valley has an abundance of large homes. The house above, 7100 E. Caballo Circle, listed for $1,775,000, has eight bedrooms and six baths in 9,100 sq. ft., according to Russ Lyon Sotheby's International Realty. One of the largest homes, the McCune mansion, built in 1961 by oil tycoon Walker McCune at 6112 N. Paradise View Drive, measures 52,000 sq. ft., according to property data on Zillow.com.
Russ Lyon Sotheby's
No. 11 Zip Code with Biggest Homes for Sale: Alpine, Utah, 84004
No. 11 Zip Code with Biggest Homes for Sale: Alpine, Utah, 84004
Median size: 5,500 sq. ft.
Median no. bedrooms: 6
Median no. bathrooms: 4
No. homes for sale: 45
Median list price: $495,000

Alpine, an outdoorsy city about 20 miles north of Provo that is popular among bikers, has a median household income of $104,436, estimates the Census Bureau. The 7,500 sq. ft. house at 86 S. Bald Mountain Drive (pictured above) is for sale for $769,000, shows a Coldwell Banker listing. Another home at 1285 Heritage Circle, listed for $2.595 million, measures 11,000 sq. ft., according to Prudential Utah Elite Real Estate.
Coldwell Banker Residential Brokerage
No. 10 Zip Code with Biggest Homes for Sale: Hidden Hills, Calif., 91302
No. 10 Zip Code with Biggest Homes for Sale: Hidden Hills, Calif., 91302
Median size: 5,522 sq. ft.
Median no. bedrooms: 5
Median no. bathrooms: 5.5
No. homes for sale: 50
Median list price: $2,897,500

Hidden Hills, a wealthy community incorporated in 1961, has a population of about 2,000 and about 648 home sites, according to the city website. The 8,259 sq. ft. home at 25015 Abercrombie Lane featured above is listed for $2.88 million, according to Coldwell Banker Previews.
Coldwell Banker Previews
No. 9 Zip Code with Biggest Homes for Sale: Wexford, Pa., 15090
No. 9 Zip Code with Biggest Homes for Sale: Wexford, Pa., 15090
Median size: 5,767.5 sq. ft.
Median no. bedrooms: 4
Median no. bathrooms: 3
No. homes for sale: 102
Median list price: $399,950

The area known as Wexford, located near Sewickley (the No. 14 area on this list) and Gibsonia (the No. 20 area on the list), is split among municipalities including Franklin Park, McCandless, Pine Township, and Marshall Township. The 8,389 sq. ft. home pictured above, 160 Windwood Drive, is listed for $1.1 million, according to pittsburghnorthhomes.com.
PittsburghNorthHomes.com
No. 8 Zip Code with Biggest Homes for Sale: Greenwood Village, Colo., 80121
No. 8 Zip Code with Biggest Homes for Sale: Greenwood Village, Colo., 80121
Median size: 5,786 sq. ft.
Median no. bedrooms: 5
Median no. bathrooms: 5
No. homes for sale: 60
Median list price: $1,249,000

Greenwood Village, just south of Cherry Hills Village, has a median household income of $114,460, according to U.S. Census Bureau estimates. The 11,276 sq. ft. home above, at 5761 S. Maple Court, has six bedrooms and nine bathrooms (including five full bathrooms) and is listed for $4,995,000, according to the website of Kentwood Real Estate broker associate Sandy Weigand.
The Kentwood Company
No. 7 Zip Code with Biggest Homes for Sale: Coral Gables, Fla., 33143
No. 7 Zip Code with Biggest Homes for Sale: Coral Gables, Fla., 33143
Median size: 5,791 sq. ft.
Median no. bedrooms: 5
Median no. bathrooms: 6
No. homes for sale: 52
Median list price: $2,924,999.50

Known for Mediterranean-style architecture, Coral Gables boasts tree-lined streets and waterfront homes. The house featured above, 330 Dolias Court, is 19,475 sq. ft. and is listed for $4,799,900, according to Avatar Real Estate Services.

Note: A nearby Zip Code—Coral Gables, 33156—was in the top 25 places with the biggest homes, but only one place from each city was included in this list.
Avatar Real Estate Services
No. 6 Zip Code with Biggest Homes for Sale: Pittsburgh, 15238
No. 6 Zip Code with Biggest Homes for Sale: Pittsburgh, 15238
Median size: 5,792 sq. ft.
Median no. bedrooms: 4
Median no. bathrooms: 3.5
No. homes for sale: 136
Median list price: $567,450

This area, which includes part of Fox Chapel and Indiana, Pa., has many large homes, both contemporary and built before 1980. The 7,081 sq. ft., seven-bedroom home pictured above, 815 Fox Chapel Road, was reduced to $1,295,000, according to Howard Hanna agent Betsy Monteverde.

Note: Another Pittsburgh area—in Zip Code 15241—was in the top 25 places with the biggest homes, but only one place from each city was included in this list.
Howard Hanna
No. 5 Zip Code with Biggest Homes for Sale: Atherton, Calif., 94027
No. 5 Zip Code with Biggest Homes for Sale: Atherton, Calif., 94027
Median size: 5,900 sq. ft.
Median no. bedrooms: 5
Median no. bathrooms: 5
No. homes for sale: 31
Median list price: $5,200,000

Atherton, on the San Francisco Peninsula in Northern California, is a wealthy Zip Code with median household income of $185,000, estimates the U.S. Census Bureau. The 11,000 sq. ft., seven-bedroom home above, 120 Selby Lane, was built in 1906 and is for sale for $7,995,000, according to Coldwell Banker.
Coldwell Banker
No. 4 Zip Code with Biggest Homes for Sale: Venetia, Pa., 15367
No. 4 Zip Code with Biggest Homes for Sale: Venetia, Pa., 15367
Median size: 6,178.5 sq. ft.
Median no. bedrooms: 4
Median no. bathrooms: 3.5
No. homes for sale: 95
Median list price: $498,000

Venetia, about 20 miles south of downtown Pittsburgh, is one of the towns in Peters Township. The five-bedroom home at 132 Justabout Road (pictured above), listed for $3.2 million, has 12,000 sq. ft. of living space and sits on 4.8 acres, according to Karen Marshall Group Keller Williams Realty.
The Karen Marshall Group
No. 3 Zip Code with Biggest Homes for Sale: Leawood, Kan., 66211
No. 3 Zip Code with Biggest Homes for Sale: Leawood, Kan., 66211
Median size: 6,312 sq. ft.
Median no. bedrooms: 5
Median no. bathrooms: 5
No. homes for sale: 39
Median list price: $1,199,000

Leawood, about 15 miles from downtown Kansas City, has a median household income of $127,162, estimates the Census Bureau. The six-bedroom home above, 11129 Brookwood Ave. in Hallbrook Farms, is listed for $1,995,000 and measures 8,550 sq. ft., according to Hallbrook Realty.
Hallbrook Realty & Prudential Kansas City
No. 2 Zip Code with Biggest Homes for Sale: Rancho Santa Fe, Calif., 92067
No. 2 Zip Code with Biggest Homes for Sale: Rancho Santa Fe, Calif., 92067
Median size: 6,424 sq. ft.
Median no. bedrooms: 5
Median no. bathrooms: 6
No. homes for sale: 222
Median list price: $3,425,000

Large homes are standard in Rancho Santa Fe, an exclusive community about 25 miles north of San Diego. The median household income in Rancho Santa Fe is $197,446, according to Census Bureau estimates. The home above, 17231 Camino De Montecillo, is 10,836 sq. ft. and is on the market for $3,499,000, according to a listing from Global One Real Estate agent Talechia Principato.

Note: Another Rancho Santa Fe area—in Zip Code 92019—was in the top 25 places with the biggest homes, but only one place from each city was included in this list.
Global One Real Estate
No. 1 Zip Code with Biggest Homes for Sale: Cherry Hills Village, Colo., 80113
No. 1 Zip Code with Biggest Homes for Sale: Cherry Hills Village, Colo., 80113
Median size: 7,654 sq. ft.
Median no. bedrooms: 6
Median no. bathrooms: 7
No. homes for sale: 81
Median list price: $2,395,000

This exclusive Denver suburb, just north of this list's No. 8 area, Greenwood Village, has homes priced from about $700,000 to $12 million, according to real estate website larryhotz.com. The area has many estate-size properties, some of which have horse stables, in contemporary, classic ranch, Mediterranean, and French Country styles, according to denverrealestate.com. The 20,198 sq. ft. home above, at 7 Cherry Hills Park Drive, has six bedrooms and nine bathrooms (including four full bathrooms) and is for sale for $8.75 million, according to the website of Kentwood Real Estate broker associate Sandy Weigand.
The Kentwood Company