Home prices are rising the most in the Western and Southern portions of the United States, while the Northeast is seeing more moderate growth or even some declines, according to data from the National Association of REALTORS®.

Read more: The 20 Hottest Housing Markets for July 2016

24/7 Wall St. recently crunched NAR's data, which is based on the median single-family home price changes over the year, to identify the fastest growing housing markets.

Which market emerged on top? Boulder, Colo., where home prices rose a whopping 18.5 percent in the last year. That said, more than half of the 25 fastest-growing housing markets on 24/7 Wall St.’s list are located either in California or Florida.

The following are the fastest growing housing markets:

Source: “America’s Fastest Growing (and Shrinking) Housing Markets,” 24/7 Wall St. (Aug. 16, 2016)