20 Cities That Are Quickly Becoming Unaffordable
These metros experienced the quickest drop in housing affordability over 2016, when you take into consideration that locale's home prices and wages. · Credit.com

America's housing market continued its staggering post-recession rise in 2016, as many regions surpassed their pre-recession-bubble highs. With interest rates finally rising, might some of those places be primed for a fall…or at least a pause?

The list of U.S. areas that could be hurt most by rising mortgage costs is not your typical list of overheated housing markets, as some fast-growing, but still modestly-priced Midwestern towns could feel the pain first.

Rising home values are always a good news/bad news story — good news for homeowners and sellers, bad news for would-be buyers. In almost every region of the country, 2016 turned out to be a very good year for owners and sellers. According to the S&P CoreLogic Case-Shiller national index, home values gained 5.6% nationwide annually as of October 2016. In some places, values soared even quicker: Seattle grew 10.7%, Portland 10.3%, and Denver 8.3%, according to the Case-Shiller report.

The good times for sellers seem set to end, however. After a seemingly endless set of warnings, the Federal Reserve finally raised interest rates in December, triggering increases in mortgage rates. More critically, Fed governors signaled that there could be three more increases in 2017, meaning mortgage interest rates will probably be about a full percentage point higher next year than they were in most of 2016. That, in turn, means higher monthly payments for borrowers, making it harder for some would-be buyers to take the plunge. In other words, higher rates could cool the housing market, says Daren Blomquist, senior vice president at Attom Data Solutions, a housing market data firm.

"I see rising interest rates as a cold shower for many overheated housing markets in 2017," he said via email. "This is probably a good thing overall, but it could come as a bit of a shock for folks who are expecting those markets to continue performing at the same level they have over the past few years."

Changes in demand dictated by borrowing costs is just one side of the equation that might hurt sellers next year. After all, there always seems to be someone willing to overpay for a New York City apartment or a home anywhere near Silicon Valley. (You can use this tool to determine how much house you can afford.) That's due in part to plentiful high-paying jobs in those regions. But many smaller markets have enjoyed a fast run-up in prices, too, and those are probably at greater risk of an interest-rate induced slowdown because of another variable in that equation: slower wage growth.