U.S. home prices rose 6.4 percent in April compared with last year, rising to an average price of $236,000, according to a new report from Black Knight Financial Services.

Black Knight’s Home Price Index (HPI) rose 0.9 percent in April compared with March. Overall, U.S. home prices are now 12 percent below their peak in June of 2006, according to the index.

Massachusetts was one of the top two states for price growth in April, according to Black Knight, with the HPI rising 1.6 percent over March and 5.5 percent over April 2013, to $335,000. Bay State home prices remain 7.3 percent below their August 2005 peak of $361,000 according to the index. 

Of the 20 largest cities in the country tracked by Black Knight, Boston ranked fourth for price growth in April, with prices up 7.4 percent compared with last year and 1.7 percent over March to $381,000.