Slideshow 10 cities on the verge of a housing bubble

Published
  • February 13 2018, 10:57am EST
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National home price growth is slowing and wages could be increasing, but there are still several areas where housing costs are putting a squeeze on consumers' wallets.

Home prices are at an all-time high in more than half of 112 metropolitan areas with a population of 200,000, according to Attom Data Solutions U.S. Home Sales Report. On top of that, most U.S. wages were flat until just recently and mortgage rates are on the rise.

Combined with a gap between incomes and home prices that is historically wide in certain local markets, these pressures on affordability puts certain areas at risk for a housing bubble.

Here's a look at 10 counties in metropolitan areas where home prices have outpaced wages by the biggest margins year-over-year, and purchasing power is at historic lows.

The data, from the Attom Data Home Affordability Index, measures average wages to buy a median-priced home on a recent and historical basis. The third-quarter 2017 data is ranked by the difference between the year-over-year increase in median home prices and the increase in average weekly wages needed to buy a median-priced house during the same period.

All the counties that follow have an affordability index below 100, meaning they are less affordable now than they have been historically on average; and in each area, more than 50% of average wages are needed to buy a median-priced home.

The ranking only includes counties that had a population of at least 100,000 and at least 100 homes sales during the quarter.

No. 10: Nashville-Davidson-Murfreesboro-Franklin, Tenn. (Williamson County)

Median sales price: $435,000
Gap between growth in home prices and wages: 4.11%
Affordability Index: 94

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No. 9: St. George, Utah (Washington County)

No. 9: St. George, Utah (Washington County)
Median sales price: $262,802
Gap between growth in home prices and wages: 4.69%

No. 8: New York-Newark-Jersey City, N.Y.-N.J.-Pa. (Kings County, N.Y.)

Median sales price: $810,000
Gap between growth in home prices and wages: 4.73%
Affordability Index: 89

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No. 7: Medford, Ore. (Jackson County)

Median sales price: $272,500
Gap between growth in home prices and wages: 6.09%
Affordability Index: 98

No. 6: San Francisco-Oakland-Hayward, Calif. (Contra Costa County)

Median sales price: $569,500
Gap between growth in home prices and wages: 6.45%
Affordability Index: 94

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No. 5: Seattle-Tacoma-Bellevue, Wash. (Snohomish County)

Median sales price: $403,000
Gap between growth in home prices and wages: 7.05%
Affordability Index: 94

No. 4: Sacramento-Roseville-Arden-Arcade, Calif. (El Dorado County)

Median sales price: $457,500
Gap between growth in home prices and wages: 8.03%
Affordability Index: 98

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No. 3: Portland-Vancouver-Hillsboro, Ore.-Wash. (Yamhill County, Ore.)

Median sales price: $289,900
Price-Wage Growth Gap: 8.05%
Affordability Index: 84

No. 2: Seattle-Tacoma-Bellevue, Wash. (King County)

Median sales price: $557,500
Price-Wage Growth Gap: 11.24%
Affordability Index: 95

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No. 1: San Antonio-New Braunfels, Texas (Comal County)

Median sales price: $269,990
Price-Wage Growth Gap: 14.04%
Affordability Index: 77