Over the next year, 23 more cities across the U.S. will make Zillow’s “$1 Million City List,” defined as a city with a median home value of $1 million or more.

The U.S. currently has 197 $1 million cities, with 33 of those breaking the seven-figure threshold in just the past 12 months, according to a new Zillow® analysis.

While home values in the U.S. are expected to rise 6.6% over the next year, some hot markets, especially in California, are expected to have home-value appreciation in the double digits. The San Francisco metro is forecasted to gain seven $1 million cities by June 2019, with Fairfax, East Palo Alto and Broadmoor Village expected to appreciate the most among those cities. San Francisco currently has 46 $1 million cities — more than any other metro in the analysis.