REALTOR.com looked at median listing prices in every state to determine the most expensive neighborhood/zip codes in each state. Every “wealthiest” neighborhood/zip code had to have an average of 30 high-tier listing prices to prevent one exorbitant price from skewing the data. Here are REALTOR.com results: including the median prices within each neighborhood:

Barrington AL (Mountain Brook) 35223       $611,612

  • low property taxes combined with highest school rankings in state
  • housing market and new jobs in midst of boom
  • Beverly Hills-style homes with pools. Lawns, views

Anchorage AL                                     99516       $537,128

  • huge cedar and wood homes with snow-capped views
  • international buyers from Canada, Russian, Korea, Germany

Paradise Valley AZ                            85253       $2,263,540

  • upscale tourist and retirement mecca – ¼ population is 65 and older

Fayetteville AR                                  72703       $417,265

  • Wal Mart headquarters is here. Nothing else needs to be said.

Beverly Hills CA                                 90210       $6,062,925

  • Beverly Hills is the most expensive city in CA and in the country.

Snowmass CO                                      81654       $3,355,488

  • just 25 minutes from Aspen
  • mega-mansions more expensive than boiling hot markets of Aspen, Denver and Boulder

Greenwich CT                                              06831       $2,625,154

  • “Crown Jewel” of CT’s “Gold Coast” along the Long Island Sound

Wilmington DE                                   19807       $890,829

  • blend of Tudor-style, Georgian-style and Colonial style homes

Washington DC (Georgetown)        20007       $1,246,663

  • wealthy diplomats, politicians and lobbyists flock here to this neighborhood by the Potomac River
  • 100-year old brick and Colonial row houses go for up to $18M

Miami Beach FL *Fisher Island)    33109       $3,592,981

  • 200-acre island once owned by Vanderbilt family accessible only by ferry, yacht or helicopter

Sea Island GA                                      31561       $2,786,717

  • privately owned territory 60 miles south of Savannah
  • ocean-front mansions flank Sea Island Beach Club and The Cloister hotel

Kilauea HI                                           96754       $2,285,904

  • no mega-mansions
  • most properties within walking distance to beach, snorkeling, hiking

Ketchum ID                                         83340       $1,488,696

  • next to Sun Valley Ski Resort
  • iconic Ernest Hemingway retreat
  • considered chic, mellow ski town

Kenilworth IL                                     60043       $1,517,467

  • Forbes called it “one of the country’s most exclusive neighborhoods
  • Joseph Sears bought it in 1880’s and created a “dream suburban community”

Zionsville IN                                        46077       $560,520

  • 18 miles north of Indianapolis
  • excellent schools and redeveloped downtown

Cedar Rapids IA                                 52411       $450,469

  • highly competitive housing market with homes selling for much above listing prices

Leadwood KS                                      66211       $1,078,967

  • small-town charm while being close to Kansas City
  • lately there is a housing shortage

Goshen KY                                           40026       $545,298

  • home to historic horse farms
  • 20 miles northeast of Louisville

New Orleans LA (Lakeview)           70124       $511,027

  • devastated by Katrina but now thriving

Kennebunkport ME                                    04046       $727,765

  • summer compounds for late Presidents and former Governors
  • “cottages” and vintage yachts

Potomac MD                                        20854       $1,346,967

  • 30 minutes to Capital
  • more suburban than Georgetown

Boston MA (Beacon Hill)                          02108       $3,392,008

  • nucleus of up-scale Boston
  • considered on of the country’s most prestigious communities

Birmingham MI                                  48009       $923,630

  • 25 miles north of Detroit
  • high demand for Craftsman and Cape Code style homes

Wayzata MN                                        55391       $1,185,877

  • lakeside town now feeling bloom of MW affluence

Madison MS                                         39110       $397,004

  • located on Barnett Reservoir just 15 miles north of Jackson
  • lots of jobs plus low cost of living

Ladue MO                                            63124       $1,202,740

  • old money buying plantation-style homes and lavish mansions
  • close to St. Louis

Cameron MT                                       59720       $1,028,946

  • considered “poor man’s Jackson Hole if poor man has millions of dollars
  • no skiing but one hour from Yellowstone National Park

Elkhorn NE                                          68022       $447,656

  • employees from Fortune 500 companies such as Berkshire Hathaway, Union Pacific Railroad and Con Agra Foods need homes

Glenbrook NV                                      89413       $4,159,008

  • located on banks of Lake Tahoe
  • attracts CA and WA people wanting second and third homes

Rye NH                                                 03870       $838,873

  • longest coastline in NH
  • lots of waterfront retreats

Alpine NJ                                              07620       $4,167,988

  • 20 miles north of New York City
  • known for its privacy

Santa Fe NM                                        87506       $1,041,957

  • founded by Spanish colonists in 1610 and oldest state capital in US
  • neighborhood just north of town with over-sized pueblo exteriors and modern interiors
  • international buyers

New York NY (Tribeca)                    10013       $4,736,779

  • zip code includes parts of SoHo, Little Italy and Chinatown

Charlotte NC                                        28207       $1,260,133

  • in the midst of boom with hot market pushing up home prices
  • lots of in-bound migration from out-of-state re-locators

Bismarck ND                                       58503       $346,664

  • new jobs; in-bound migration from re-locators

Indian Hills OH                                  45243       $743,893

  • close to Cincinnati with different, low key vibe, hills and one-lane roads
  • Kroger and Proctor & Gamble employees need homes

Arcadia OK                                          73007       $683,152

  • 15 minutes from Oklahoma City which is booming with oil/natural gas jobs
  • bit of housing boom for Craftsman-style homes

Lake Oswego OR                                97034       $1,134,196

         – 405-acre         lake just 8 miles south of Portland

– magnet for wealthy with hiking trails, swimming holes, pristine golf courses

– Tudor and Victorian style homes

Villanova PA                                       19085       $1,370,992      

  • east coast elites

Block Island RI                                   02807       $1,370,992

  • 7 miles of beaches, cliffs and roads
  • accessible only by ferry or private plane
  • vacation destination for Bostonians and New Yorkers

Sullivan’s Island SC                                    29482       $2,281,404

  • 15 minutes from Charleston
  • lavish beach homes as second/third homes

Hill City SD                                          57745       $421,625

  • in heart of Black Hills near Mt. Rushmore, Custer State Park and Wind Cave National Park
  • no income/estate taxes

Franklin TN                                         37069       $893,418

  • lots of relocating employees of United Health Care and Nissan

Dallas TX (University Park)            75205       $1,623,790

  • booming economy and booming in-migration
  • lots of newly constructed homes

Park City UT                                        84060       $1,989,696

  • world class skiing
  • Sundance Film Festival
  • out of reach home prices

Charlotte VT                                        05445       $721,728

  • highest median incomes (2X) in state
  • highly educated inbound migrants from NE

McLean VA                                          22101       $1,609,905

  • home to CIA and other DC power players

Bellevue WA                                       98004       $2,608,882

  • 10 miles from Seattle
  • often near top of “best places to live in America” lists

White Sulphur Springs WV              24986       $701,507

  • home to one of country’s most exclusive golf resorts, Greenbrier Country Club
  • famous mineral springs

Elm Grove WI                                      53122       $584,018

  • 20 minutes to Milwaukee and 15 minutes to Lake Country
  • great schools, low crime rates, beautiful homes

Wilson WY                                           83014       $893,418

  • 25 minutes to Jackson Hole’s world class skiing
  • Teton County has one of highest income levels in US
  • larger homes and fewer tourists than Jackson Hole